CN105449762A - Method, device and system for controlling battery charging - Google Patents
Method, device and system for controlling battery charging Download PDFInfo
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- CN105449762A CN105449762A CN201510926580.1A CN201510926580A CN105449762A CN 105449762 A CN105449762 A CN 105449762A CN 201510926580 A CN201510926580 A CN 201510926580A CN 105449762 A CN105449762 A CN 105449762A
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- switching device
- pressure break
- make switching
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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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 provides a method, a device and a system for controlling battery charging. The method comprises the following steps: detecting electrical parameters of two ends of a contact of a to-be-controlled low-voltage on-off switching element on a battery charging circuit; adjusting the electrical parameters output by a power module which is connected with the low-voltage on-off switching element according to the detected electrical parameters; and when the electrical parameters at two ends of the contact of the low-voltage on-off switching element meet the preset conditions, controlling closing or opening of the low-voltage on-off switching element to connect or disconnect the power module which is connected with the low-voltage on-off switching element and a corresponding charging port. Battery charging is controlled by a high-voltage contactor with high cost instead of the low-voltage on-off switching element with low cost as an on-off switch; and meanwhile, by the method for controlling battery charging, the low-voltage on-off switching element can be applied to a direct-current high voltage loop as the on-off switch, so that the manufacturing cost of a charger is also greatly reduced.
Description
Technical field
The present invention relates to battery boosting technology field, in particular to a kind of method, the Apparatus and system that control battery charging.
Background technology
At present, along with the progressively reinforcement of energy-saving and emission-reduction policy, due to electric bicycle, battery-operated motor cycle, the vehicles such as electric automobile are power source according to electric power, motor is utilized to replace the electrical means of communication of fuel engines, zero discharge can not only be realized, low noise, pollution-free, day by day exhausted petroleum-based energy can also be saved in a large number, thus be more and more subject to the support of national policy and widely popularize, thereupon as electric bicycle, battery-operated motor cycle, the application of the charging device (also referred to as the non-Vehicular charger of electric car conduction formula) of the motor vehicles such as electric automobile is also more and more extensive, and then the demand of charger is progressively increased.
Current, a kind of method controlling battery charging is provided in correlation technique, mainly utilize high voltage connector to control the break-make of power supply, when the solenoid of high voltage connector connects control voltage by control loop, armature is inhaled to static iron core by the reaction force that electromagnetic force overcomes spring, drive main contacts closes, and connect circuit, auxiliary contact are action thereupon; When the solenoid no power of high voltage connector, the reaction force of spring and the deadweight of armature core make main contacts remain open position, due to the rated voltage of high voltage connector and rated current larger, be applied to fail safe in battery charge circuit high.But high voltage connector is in order to effective arc extinguishing, adopt hermetically sealed, interior filling with inert gas and in add the technology such as permanent magnet magnetic quenching and cause the volume of high voltage connector much larger than low pressure break-make switching device, and the difficulty of production and processing causes its price to be to hundreds of times with the decades of times of its same current low pressure break-make switching device.Each charging gun of current charger all arranges one or two high voltage connectors to control the break-make of this charge circuit.
Realizing in process of the present invention, inventor finds at least there is following problem in correlation technique: in the method for the control battery charging provided in the related, utilize high voltage connector to control the break-make of power supply, but because high voltage connector volume is large, cost is high, particularly when needs arrange multiple high voltage connector, thus limit application scenarios, be not suitable for promoting.
Summary of the invention
In view of this, the object of the embodiment of the present invention is to provide a kind of method, the Apparatus and system that control battery charging, with solve correlation technique because high voltage connector volume is large, cost is high, it is special in needs arrange multiple high voltage connector, thus limit application scenarios, be not suitable for the problem promoted.
First aspect, embodiments provide a kind of method controlling battery charging, the method comprises:
Detect the electrical quantity at the two ends, contact of low pressure break-make switching device to be controlled on battery charger, wherein, this electrical quantity comprises: voltage, and/or electric current, and above-mentioned low pressure break-make switching device comprises: low-voltage relay, lv contactor or low-voltage circuit breaker;
The electrical quantity that the power module be connected with above-mentioned low pressure break-make switching device according to the above-mentioned electrical quantity adjustment detected exports;
When the above-mentioned electrical quantity at the two ends, contact of above-mentioned low pressure break-make switching device meets pre-conditioned, control the closed of above-mentioned low pressure break-make switching device or disconnect, to make conducting or disconnection between the above-mentioned power module that connects to above-mentioned low pressure break-make switching device and corresponding charging port.
In conjunction with first aspect, embodiments provide the first possible execution mode of first aspect, wherein, the electrical quantity at the two ends, contact of low pressure break-make switching device to be controlled on above-mentioned detection battery charger, comprise: when low pressure break-make switching device to be controlled switches to closure state by off-state, gather the voltage at the two ends, contact of above-mentioned low pressure break-make switching device;
The electrical quantity that the power module that the above-mentioned electrical quantity adjustment that above-mentioned basis detects is connected with above-mentioned low pressure break-make switching device exports, comprising: the voltage that the power module be connected with above-mentioned low pressure break-make switching device according to above-mentioned Voltage Cortrol exports;
When the above-mentioned electrical quantity at the above-mentioned two ends, contact when above-mentioned low pressure break-make switching device meets pre-conditioned, control the closed of above-mentioned low pressure break-make switching device or disconnect, to make conducting or disconnection between the above-mentioned power module that connects to above-mentioned low pressure break-make switching device and corresponding charging port, comprise: when the absolute value of the difference of the voltage at the two ends, contact of above-mentioned low pressure break-make switching device is less than the first preset value, control above-mentioned low pressure break-make switching device to close, to make conducting between the power module that connects to above-mentioned low pressure break-make switching device and corresponding charging port.
In conjunction with first aspect, embodiments provide the execution mode that the second of first aspect is possible, wherein, the electrical quantity at the two ends, contact of low pressure break-make switching device to be controlled on above-mentioned detection battery charger, comprise: when low pressure break-make switching device to be controlled switches to off-state by closure state, gather the voltage at the two ends, contact of above-mentioned low pressure break-make switching device and the electric current of above-mentioned low pressure break-make switching device place circuit;
The electrical quantity that the power module that the above-mentioned electrical quantity adjustment that above-mentioned basis detects is connected with above-mentioned low pressure break-make switching device exports, comprising: the voltage and current that the above-mentioned power module be connected with above-mentioned low pressure break-make switching device according to above-mentioned voltage and the adjustment of above-mentioned electric current exports;
When the above-mentioned electrical quantity at the above-mentioned two ends, contact when above-mentioned low pressure break-make switching device meets pre-conditioned, control the closed of above-mentioned low pressure break-make switching device or disconnect, to make conducting or disconnection between the above-mentioned power module that connects to above-mentioned low pressure break-make switching device and corresponding charging port, comprise: when the absolute value of the difference of the voltage at the two ends, contact of above-mentioned low pressure break-make switching device is less than the first preset value and the electric current of above-mentioned low pressure break-make switching device place circuit reaches the second preset value, control above-mentioned low pressure break-make switching device to disconnect, with make the above-mentioned power module that connects to above-mentioned low pressure break-make switching device and corresponding charging port separated.
In conjunction with the first possible execution mode of first aspect or the possible execution mode of the second of first aspect, embodiments provide the third possible execution mode of first aspect, wherein, first preset value is the load voltage value of described low pressure break-make switching device, and/or the second preset value is zero.
In conjunction with first aspect, embodiments provide the 4th kind of possible execution mode of first aspect, wherein, above-mentioned battery: electrokinetic cell, high-tension battery or super capacitor.
Second aspect, the embodiment of the present invention additionally provides a kind of device controlling battery charging, this device comprises: at least one low pressure break-make switching device and master controller, and wherein, this master controller comprises: the electrical parameters detection module, adjusting module and the control module that connect successively;
Above-mentioned electrical parameters detection module, for detecting the electrical quantity at the two ends, contact of low pressure break-make switching device to be controlled on battery charger, wherein, above-mentioned electrical quantity comprises: voltage, and/or electric current, above-mentioned low pressure break-make switching device comprises: low-voltage relay, lv contactor or low-voltage circuit breaker;
Above-mentioned adjusting module, the electrical quantity that the power module for being connected with above-mentioned low pressure break-make switching device according to the above-mentioned electrical quantity adjustment detected exports;
Above-mentioned control module, when above-mentioned electrical quantity for the two ends, contact when above-mentioned low pressure break-make switching device meets pre-conditioned, control the closed of above-mentioned low pressure break-make switching device or disconnect, to make conducting or disconnection between the above-mentioned power module that connects to above-mentioned low pressure break-make switching device and corresponding charging port.
In conjunction with second aspect, embodiments provide the first possible execution mode of second aspect, wherein, above-mentioned electrical parameters detection module comprises: the first detecting unit, for when low pressure break-make switching device to be controlled switches to closure state by off-state, gather the voltage at the two ends, contact of above-mentioned low pressure break-make switching device;
Above-mentioned adjusting module comprises: the first adjustment unit, the voltage that the power module for being connected with above-mentioned low pressure break-make switching device according to above-mentioned Voltage Cortrol exports;
Above-mentioned control module comprises: the first control unit, when absolute value for the difference of the voltage at the two ends, contact when above-mentioned low pressure break-make switching device is less than the first preset value, control above-mentioned low pressure break-make switching device to close, to make conducting between the power module that connects to above-mentioned low pressure break-make switching device and corresponding charging port.
In conjunction with second aspect, embodiments provide the execution mode that the second of second aspect is possible, wherein, above-mentioned electrical parameters detection module comprises: the second detecting unit, for when low pressure break-make switching device to be controlled switches to off-state by closure state, gather the voltage at the two ends, contact of above-mentioned low pressure break-make switching device and the electric current of above-mentioned low pressure break-make switching device place circuit;
Above-mentioned adjusting module comprises: the second adjustment unit, the voltage and current that the above-mentioned power module for being connected with above-mentioned low pressure break-make switching device according to above-mentioned voltage and the adjustment of above-mentioned electric current exports;
Above-mentioned control module comprises: the second control unit, absolute value for the difference of the voltage at the two ends, contact when above-mentioned low pressure break-make switching device be less than the first preset value and the electric current of above-mentioned low pressure break-make switching device place circuit reaches the second preset value time, control above-mentioned low pressure break-make switching device to disconnect, with make the above-mentioned power module that connects to above-mentioned low pressure break-make switching device and corresponding charging port separated.
In conjunction with second aspect, embodiments provide the third possible execution mode of second aspect, wherein, above-mentioned battery: electrokinetic cell, high-tension battery or super capacitor.
The third aspect, the embodiment of the present invention additionally provides a kind of system controlling battery charging, and this system comprises: the device that the power module be connected with the input of above-mentioned low pressure break-make switching device, the charging port be connected with the contact output of above-mentioned low pressure break-make switching device and above-mentioned control battery charge.
In the method for the control battery charging that the embodiment of the present invention provides, in Apparatus and system, replace the high high voltage connector of cost by the low pressure break-make switching device utilizing cost low and control battery charging as on-off switch, simultaneously, consider due to low pressure break-make switching device closed or disconnect time contact between the pressure reduction that allows less, the moment causing low pressure break-make switching device to close or to disconnect easily is damaged even is burnt, therefore first, detect the electrical quantity at the two ends, contact of low pressure break-make switching device, then, the electrical quantity that the power module be connected with this low pressure break-make switching device according to the electrical quantity detected adjustment exports, when the electrical quantity at the two ends, contact of low pressure break-make switching device meets pre-conditioned, control the closed of low pressure break-make switching device again or disconnect, thus between the contact both having avoided low pressure break-make switching device when high voltage direct current electrically connects or cuts off, there is sparking phenomenon of arc discharge, can low pressure break-make switching device be applied in high direct voltage loop as on-off switch, greatly reduce again the cost of manufacture of charger.
For making above-mentioned purpose of the present invention, feature and advantage become apparent, preferred embodiment cited below particularly, and coordinate appended accompanying drawing, be described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present invention, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 shows a kind of method flow schematic diagram controlling battery charging that the embodiment of the present invention provides;
Fig. 2 shows a kind of structural representation controlling the device of battery charging that the embodiment of the present invention provides;
Fig. 3 shows a kind of structural representation controlling the system of battery charging that the embodiment of the present invention provides.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.The assembly of the embodiment of the present invention describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.Therefore, below to the detailed description of the embodiments of the invention provided in the accompanying drawings and the claimed scope of the present invention of not intended to be limiting, but selected embodiment of the present invention is only represented.Based on embodiments of the invention, the every other embodiment that those skilled in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
Consider in the method for the control battery charging provided in the related, utilize high voltage connector as on-off switch to control the break-make of power supply, but because high voltage connector volume is large, cost is high, it is special in needs arrange multiple high voltage connector, thus limit application scenarios, be not suitable for the problem promoted.Based on this, embodiments provide a kind of method, the Apparatus and system that control battery charging, be described below by embodiment.
As shown in Figure 1, embodiments provide a kind of method controlling battery charging, the method comprising the steps of S102-S106, specific as follows:
Step S102: the electrical quantity detecting the two ends, contact of low pressure break-make switching device to be controlled on battery charger, wherein, above-mentioned electrical quantity comprises: voltage, and/or electric current, above-mentioned low pressure break-make switching device can be low-voltage relay, also can be lv contactor, can also be low-voltage circuit breaker;
Wherein, although consider because low pressure break-make switching device cost is low, volume is little, but it is less at pressure reduction that is closed or that allow between contact when disconnecting, the moment causing low pressure break-make switching device to close or to disconnect easily is damaged even is burnt, therefore, in embodiment provided by the invention, when after the control command receiving superior control centre transmission, first the electrical quantity at the two ends, contact detecting low pressure break-make switching device to be controlled is needed, wherein, this electrical quantity comprises: the voltage at the two ends, contact of low pressure break-make switching device (output voltage of the power module be namely connected with low pressure break-make switching device input and the voltage of charging port be connected with low pressure break-make switching device output), the electric current (i.e. the current value of low pressure break-make switching device place charge circuit) at the two ends, contact of low pressure break-make switching device, then, the electrical quantity at the two ends, contact of the low pressure break-make switching device detected is transferred to adjusting module.
Step S104: the electrical quantity that the power module be connected with above-mentioned low pressure break-make switching device according to the above-mentioned electrical quantity adjustment detected exports;
Concrete, after the electrical quantity at the two ends, contact of low pressure break-make switching device being detected, then, judge whether the electrical quantity at the two ends, contact of the low pressure break-make switching device detected meets pre-conditioned, if the electrical quantity at the two ends, contact of low pressure break-make switching device does not meet pre-conditioned, the electrical quantity that the power module then controlling to be connected with low pressure break-make switching device input exports, meets pre-conditioned with the electrical quantity at the two ends, contact making low pressure break-make switching device.
Step S106: when the above-mentioned electrical quantity at the two ends, contact of above-mentioned low pressure break-make switching device meets pre-conditioned, control the closed of above-mentioned low pressure break-make switching device or disconnect, to make conducting or disconnection between the above-mentioned power module that connects to above-mentioned low pressure break-make switching device and corresponding charging port.
Wherein, above-mentioned battery: electrokinetic cell, high-tension battery or super capacitor, power module can be adjustable DC power supply or adjustable ac source, this power module is the power supply for the battery charging on connected charging port, each step of above-mentioned control battery charging can be realized by the program be set in advance in single-chip microcomputer, charging port can be the charging gun in charger, charging gun is connected with external charging terminal, and this external charging terminal can be battery to be charged; The closure state of above-mentioned low pressure break-make switching device refers to the state that the shell fragment up and down of contact is closed, and the off-state of above-mentioned low pressure break-make switching device refers to the state that the shell fragment up and down of contact separates.
It should be noted that, the high voltage connector of high cost can be replaced as the on-off switch controlling battery charging by above-mentioned low pressure break-make switching device, this low pressure break-make switching device can be low-voltage relay, can also be lv contactor or the low-voltage circuit breaker with low cost, adopt the break-make control mode corresponding with above-mentioned low pressure break-make switching device to make it under safety condition, carry out on-off action.
In addition, also it should be noted that, when charging port is in off-state and power module is in off-mode, can safety closed or disconnect the low pressure break-make switching device that this power module is connected with this charging port, in addition, when controlling the disconnection of low pressure break-make switching device, also can be that power module is switched to off-mode, and now because charging module output has electric capacity and reverse-filling diode, so low pressure break-make switching device contact both end voltage difference is zero, low pressure break-make switching device place circuital current is zero, meet pre-conditioned equally, control low pressure break-make switching device again to disconnect, this situation is also in protection scope of the present invention.
In the method for the control battery charging provided in the embodiment of the present invention, replace the high high voltage connector of cost by the low pressure break-make switching device utilizing cost low and control battery charging as on-off switch, simultaneously, consider due to low pressure break-make switching device closed or disconnect time contact between the pressure reduction that allows less, the moment causing low pressure break-make switching device to close or to disconnect easily is damaged even is burnt, therefore first, detect the electrical quantity at the two ends, contact of low pressure break-make switching device, then, the electrical quantity that the power module be connected with this low pressure break-make switching device according to the electrical quantity detected adjustment exports, when the electrical quantity at the two ends, contact of low pressure break-make switching device meets pre-conditioned, control the closed of low pressure break-make switching device again or disconnect, thus between the contact both having avoided low pressure break-make switching device when high voltage direct current electrically connects or cuts off, there is sparking phenomenon of arc discharge, can low pressure break-make switching device be applied in high direct voltage loop as on-off switch, greatly reduce again the cost of manufacture of charger.
Concrete, two kinds of situations can be divided into, a kind of is when needing low pressure break-make switching device to be switched to closure state by off-state, owing to considering when low pressure break-make switching device is in off-state, the electric current of low pressure break-make switching device place charge circuit is zero, this current value can not be gathered, be specially:
When low pressure break-make switching device to be controlled switches to closure state by off-state, gather the voltage (output voltage of the power module be namely connected with low pressure break-make switching device input and the voltage of charging port be connected with low pressure break-make switching device output) at the two ends, contact of above-mentioned low pressure break-make switching device;
The voltage that the power module be connected with above-mentioned low pressure break-make switching device according to above-mentioned Voltage Cortrol exports;
When the absolute value of the difference of the voltage at the two ends, contact of above-mentioned low pressure break-make switching device is less than the first preset value, control above-mentioned low pressure break-make switching device to close, to make conducting between the power module that connects to above-mentioned low pressure break-make switching device and corresponding charging port.
Another kind is when needing low pressure break-make switching device to be switched to off-state by closure state, is specially:
When low pressure break-make switching device to be controlled switches to off-state by closure state, gather the voltage (output voltage of the power module be namely connected with low pressure break-make switching device input and the voltage of charging port be connected with low pressure break-make switching device output) at the two ends, contact of above-mentioned low pressure break-make switching device and the electric current (i.e. the current value of low pressure break-make switching device place charge circuit) of above-mentioned low pressure break-make switching device place circuit;
The voltage and current that the above-mentioned power module be connected with above-mentioned low pressure break-make switching device according to above-mentioned voltage and the adjustment of above-mentioned electric current exports;
When the absolute value of the difference of the voltage at the two ends, contact of above-mentioned low pressure break-make switching device is less than the first preset value and the electric current of above-mentioned low pressure break-make switching device place circuit reaches the second preset value, control above-mentioned low pressure break-make switching device to disconnect, with make the above-mentioned power module that connects to above-mentioned low pressure break-make switching device and corresponding charging port separated.
In summary, in embodiment provided by the invention, adopt when the voltage difference at the two ends, contact of low pressure break-make switching device and the electric current of this low pressure break-make switching device place charge circuit reach safety value, control the control mode of low pressure break-make switching device break-make again, the phenomenon of the sparking arcing of high voltage direct current when connecting or disconnecting between low pressure break-make switching device contact can be avoided, effectively solve low pressure break-make switching device and be applied to the technical problem existed in high-tension circuit, and then solve low pressure break-make switching device and be easily damaged even by the problem of burning in closed or closed moment, thus provide the possibility be applied in high-tension circuit of low pressure break-make switching device safety, further ensure the fail safe utilizing low pressure break-make switching device as the on-off switch in battery charger.
It should be noted that, after low pressure break-make switching device is closed, the contact resistance at two ends, contact is very little, as long as be now no more than rated value by the electric current at two ends, contact, low pressure break-make switching device would not be overheated, thus can ensure the work that this low pressure break-make switching device is stable, now the contact of low pressure break-make switching device is by the impact of voltage levels, and this is that small low-voltage break-make switching device can the deciding factor of under high pressure steady operation.
Concrete, control a certain low pressure break-make switching device closed or before disconnecting, first the voltage at these two ends, low pressure break-make switching device contact and the electric current of this low pressure break-make switching device place charge circuit is gathered by can communication read module, voltage according to the Voltage Cortrol power module at the two ends, low pressure break-make switching device contact collected exports, when the voltage difference at two ends, low pressure break-make switching device contact is less than preset value and the electric current of low pressure break-make switching device place charge circuit is less than preset value, control this low pressure break-make switching device close or disconnect, namely control low pressure break-make switching device and carry out switch motion under secure conditions, thus avoid low pressure break-make switching device to close or moment of disconnecting is damaged and is even burnt.
In addition, preferably, the output voltage of the power module be connected with low pressure break-make switching device input be slightly less than the voltage of charging port that is connected with low pressure break-make switching device output and the electric current that the absolute value of contact both end voltage difference is less than the first preset value and low pressure break-make switching device place charge circuit equals the second preset value time, control this low pressure break-make switching device closed or disconnect.
Further, the first preset value is the load voltage value of described low pressure break-make switching device, and/or the second preset value is zero.Wherein, this first preset value determines according to the rated value of low pressure break-make switching device safe action, generally, is the numerical value being less than or equal to this rated value by default settings, and concrete model, the specification of this rated value and low pressure break-make switching device are relevant.Preferably, due to when the voltage at two ends, low pressure break-make switching device contact is equal and electric current that is low pressure break-make switching device place charge circuit is zero, control this low pressure break-make switching device close or disconnect, now can extend the useful life of low pressure break-make switching device further.
In the method for the control battery charging provided in the embodiment of the present invention, replace the high high voltage connector of cost by the low pressure break-make switching device utilizing cost low and control battery charging as on-off switch, simultaneously, consider due to low pressure break-make switching device closed or disconnect time contact between the pressure reduction that allows less, the moment causing low pressure break-make switching device to close or to disconnect easily is damaged even is burnt, therefore first, detect the electrical quantity at the two ends, contact of low pressure break-make switching device, then, the electrical quantity that the power module be connected with this low pressure break-make switching device according to the electrical quantity detected adjustment exports, when the electrical quantity at the two ends, contact of low pressure break-make switching device meets pre-conditioned, control the closed of low pressure break-make switching device again or disconnect, thus between the contact both having avoided low pressure break-make switching device when high voltage direct current electrically connects or cuts off, there is sparking phenomenon of arc discharge, can low pressure break-make switching device be applied in high direct voltage loop as on-off switch, greatly reduce again the cost of manufacture of charger, further, due to when the voltage at two ends, low pressure break-make switching device contact is equal and electric current that is low pressure break-make switching device place charge circuit is zero, control this low pressure break-make switching device close or disconnect, now can extend the useful life of low pressure break-make switching device further.
As shown in Figure 2, the embodiment of the present invention additionally provides a kind of device controlling battery charging, this device comprises: at least one low pressure break-make switching device 11 and master controller 22, wherein, this master controller 22 comprises: the electrical parameters detection module 221 connected successively, adjusting module 222 and control module 223;
Above-mentioned electrical parameters detection module 221, for detecting the electrical quantity at the two ends, contact of low pressure break-make switching device 11 to be controlled on battery charger, wherein, above-mentioned electrical quantity comprises: voltage, and/or electric current, above-mentioned low pressure break-make switching device 11 can be low-voltage relay, also can be lv contactor, can also be low-voltage circuit breaker;
Above-mentioned adjusting module 222, the electrical quantity that the power module 10 for being connected with above-mentioned low pressure break-make switching device 11 according to the above-mentioned electrical quantity adjustment detected exports;
Above-mentioned control module 223, when above-mentioned electrical quantity for the two ends, contact when above-mentioned low pressure break-make switching device 11 meets pre-conditioned, control the closed of above-mentioned low pressure break-make switching device 11 or disconnect, to make conducting or disconnection between the above-mentioned power module 10 that connects to above-mentioned low pressure break-make switching device 11 and corresponding charging port 30.
Wherein, above-mentioned battery: electrokinetic cell, high-tension battery or super capacitor, power module 10 can be adjustable DC power supply or adjustable ac source, this power module 10 is the power supplys for the battery charging on connected charging port 30, above-mentioned master controller 22 can be MCU single-chip microcomputer, electrical parameters detection module 221 is not limited in this master controller 22, adjusting module 222 and control module 223 modules, also corresponding function can be realized by other modules, can be realized by the program be set in advance in single-chip microcomputer, the closure state of above-mentioned low pressure break-make switching device 11 refers to the state that the shell fragment up and down of contact is closed, the off-state of above-mentioned low pressure break-make switching device 11 refers to the state that the shell fragment up and down of contact separates, charging port 30 can be the charging gun in charger, and charging gun is connected with external charging terminal, and this external charging terminal can be battery to be charged.
In the device of the control battery charging provided in the embodiment of the present invention, replace the high high voltage connector of cost by the low pressure break-make switching device 11 utilizing cost low and control battery charging as on-off switch, simultaneously, consider due to low pressure break-make switching device 11 closed or disconnect time contact between the pressure reduction that allows less, cause low pressure break-make switching device 11 moment that is closed or that disconnect easily to be damaged even to be burnt, therefore first, detect the electrical quantity at the two ends, contact of low pressure break-make switching device 11, then, the electrical quantity that the power module 10 be connected with this low pressure break-make switching device 11 according to the electrical quantity detected adjustment exports, when the electrical quantity at the two ends, contact of low pressure break-make switching device 11 meets pre-conditioned, control the closed of low pressure break-make switching device 11 again or disconnect, thus between the contact both having avoided low pressure break-make switching device 11 when high voltage direct current electrically connects or cuts off, there is sparking phenomenon of arc discharge, can low pressure break-make switching device 11 be applied in high direct voltage loop as on-off switch, greatly reduce again the cost of manufacture of charger.
Further, above-mentioned electrical parameters detection module 221 comprises: the first detecting unit, for when low pressure break-make switching device 11 to be controlled switches to closure state by off-state, gathers the voltage at the two ends, contact of above-mentioned low pressure break-make switching device 11;
Above-mentioned adjusting module 222 comprises: the first adjustment unit, the voltage that the power module 10 for being connected with above-mentioned low pressure break-make switching device 11 according to above-mentioned Voltage Cortrol exports;
Above-mentioned control module 223 comprises: the first control unit, when absolute value for the difference of the voltage at the two ends, contact when above-mentioned low pressure break-make switching device 11 is less than the first preset value, control above-mentioned low pressure break-make switching device 11 to close, to make conducting between the power module 10 that connects to above-mentioned low pressure break-make switching device 11 and corresponding charging port 30.
Further, above-mentioned electrical parameters detection module 221 comprises: the second detecting unit, for when low pressure break-make switching device 11 to be controlled switches to off-state by closure state, gather the voltage at the two ends, contact of above-mentioned low pressure break-make switching device 11 and the electric current of above-mentioned low pressure break-make switching device 11 place circuit;
Above-mentioned adjusting module 222 comprises: the second adjustment unit, the voltage and current that the above-mentioned power module 10 for being connected with above-mentioned low pressure break-make switching device 11 according to above-mentioned voltage and the adjustment of above-mentioned electric current exports;
Above-mentioned control module 223 comprises: the second control unit, absolute value for the difference of the voltage at the two ends, contact when above-mentioned low pressure break-make switching device 11 be less than the first preset value and the electric current of above-mentioned low pressure break-make switching device 11 place circuit reaches the second preset value time, control above-mentioned low pressure break-make switching device 11 to disconnect, separated with the above-mentioned power module 10 and the corresponding charging port 30 that make to connect to above-mentioned low pressure break-make switching device 11.
Further, the first preset value is the load voltage value of described low pressure break-make switching device 11, and/or the second preset value is zero.Due to when the voltage at two ends, low pressure break-make switching device 11 contact is equal and electric current that is low pressure break-make switching device 11 place charge circuit is zero, control this low pressure break-make switching device 11 close or disconnect, now can extend the useful life of low pressure break-make switching device 11 further.
As shown in Figure 3, the embodiment of the present invention additionally provides a kind of system controlling battery charging, and this system comprises: the device that the power module 10 be connected with the input of above-mentioned low pressure break-make switching device 11, the charging port 30 be connected with the contact output of above-mentioned low pressure break-make switching device 11 and above-mentioned control battery charge.
Wherein, device and the system of above-mentioned control battery charging can be applied in the power battery charging of electric motor car; also can be applied in the battery charging of family's energy storage; can also be applied in various rechargeable energy storage device such as other high-tension battery and super capacitors etc., all within protection scope of the present invention.
In the Apparatus and system of the control battery charging provided in the embodiment of the present invention, replace the high high voltage connector of cost by the low pressure break-make switching device 11 utilizing cost low and control battery charging as on-off switch, simultaneously, consider due to low pressure break-make switching device 11 closed or disconnect time contact between the pressure reduction that allows less, cause low pressure break-make switching device 11 moment that is closed or that disconnect easily to be damaged even to be burnt, therefore first, detect the electrical quantity at the two ends, contact of low pressure break-make switching device 11, then, the electrical quantity that the power module 10 be connected with this low pressure break-make switching device 11 according to the electrical quantity detected adjustment exports, when the electrical quantity at the two ends, contact of low pressure break-make switching device 11 meets pre-conditioned, control the closed of low pressure break-make switching device 11 again or disconnect, thus between the contact both having avoided low pressure break-make switching device 11 when high voltage direct current electrically connects or cuts off, there is sparking phenomenon of arc discharge, can low pressure break-make switching device 11 be applied in high direct voltage loop as on-off switch, greatly reduce again the cost of manufacture of charger, further, due to when the voltage at two ends, low pressure break-make switching device 11 contact is equal and electric current that is low pressure break-make switching device 11 place charge circuit is zero, control this low pressure break-make switching device 11 close or disconnect, now can extend the useful life of low pressure break-make switching device 11 further.
The device of the control battery charging that the embodiment of the present invention provides can be the specific hardware on equipment or the software be installed on equipment or firmware etc.The device that the embodiment of the present invention provides, its technique effect realizing principle and generation is identical with preceding method embodiment, is concise and to the point description, and the not mentioned part of device embodiment part can with reference to corresponding contents in preceding method embodiment.Those skilled in the art can be well understood to, and for convenience and simplicity of description, the specific works process of the system of aforementioned description, device and unit, all with reference to the corresponding process in said method embodiment, can not repeat them here.
In embodiment provided by the present invention, should be understood that disclosed apparatus and method can realize by another way.Device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, again such as, multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some communication interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in embodiment provided by the invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.
If described function using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part of the part that technical scheme of the present invention contributes to prior art in essence in other words or this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), magnetic disc or CD etc. various can be program code stored medium.
It should be noted that: in similar label and letter accompanying drawing below, represent similar terms, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to define further it and explain in accompanying drawing subsequently, in addition, term " first ", " second ", " the 3rd " etc. only for distinguishing description, and can not be interpreted as instruction or hint relative importance.
Last it is noted that the above embodiment, be only the specific embodiment of the present invention, in order to technical scheme of the present invention to be described, be not intended to limit, protection scope of the present invention is not limited thereto, although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: be anyly familiar with those skilled in the art in the technical scope that the present invention discloses, it still can be modified to the technical scheme described in previous embodiment or can expect change easily, or equivalent replacement is carried out to wherein portion of techniques feature, and these amendments, change or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of embodiment of the present invention technical scheme.All should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection range of claim.
Claims (10)
1. control a method for battery charging, it is characterized in that, described method comprises:
Detect the electrical quantity at the two ends, contact of low pressure break-make switching device to be controlled on battery charger, wherein, described electrical quantity comprises: voltage, and/or electric current, and described low pressure break-make switching device comprises: low-voltage relay, lv contactor or low-voltage circuit breaker;
The electrical quantity that the power module be connected with described low pressure break-make switching device according to the described electrical quantity adjustment detected exports;
When the described electrical quantity at the two ends, contact of described low pressure break-make switching device meets pre-conditioned, control the closed of described low pressure break-make switching device or disconnect, to make conducting or disconnection between the described power module that connects to described low pressure break-make switching device and corresponding charging port.
2. the method for control battery charging according to claim 1, it is characterized in that, the electrical quantity at the two ends, contact of low pressure break-make switching device to be controlled on described detection battery charger, comprise: when low pressure break-make switching device to be controlled switches to closure state by off-state, gather the voltage at the two ends, contact of described low pressure break-make switching device;
The electrical quantity that the power module that the described electrical quantity adjustment that described basis detects is connected with described low pressure break-make switching device exports, comprising: the voltage that the power module be connected with described low pressure break-make switching device according to described Voltage Cortrol exports;
When the described electrical quantity at the described two ends, contact when described low pressure break-make switching device meets pre-conditioned, control the closed of described low pressure break-make switching device or disconnect, to make conducting or disconnection between the described power module that connects to described low pressure break-make switching device and corresponding charging port, comprise: when the absolute value of the difference of the voltage at the two ends, contact of described low pressure break-make switching device is less than the first preset value, control described low pressure break-make switching device to close, to make conducting between the power module that connects to described low pressure break-make switching device and corresponding charging port.
3. the method for control battery charging according to claim 1, it is characterized in that, the electrical quantity at the two ends, contact of low pressure break-make switching device to be controlled on described detection battery charger, comprise: when low pressure break-make switching device to be controlled switches to off-state by closure state, gather the voltage at the two ends, contact of described low pressure break-make switching device and the electric current of described low pressure break-make switching device place circuit;
The electrical quantity that the power module that the described electrical quantity adjustment that described basis detects is connected with described low pressure break-make switching device exports, comprising: the voltage and current that the described power module be connected with described low pressure break-make switching device according to described voltage and the adjustment of described electric current exports;
When the described electrical quantity at the described two ends, contact when described low pressure break-make switching device meets pre-conditioned, control the closed of described low pressure break-make switching device or disconnect, to make conducting or disconnection between the described power module that connects to described low pressure break-make switching device and corresponding charging port, comprise: when the absolute value of the difference of the voltage at the two ends, contact of described low pressure break-make switching device is less than the first preset value and the electric current of described low pressure break-make switching device place circuit reaches the second preset value, control described low pressure break-make switching device to disconnect, with make the described power module that connects to described low pressure break-make switching device and corresponding charging port separated.
4. the method for the control battery charging according to Claims 2 or 3, it is characterized in that, the first preset value is the load voltage value of described low pressure break-make switching device, and/or the second preset value is zero.
5. the method for control battery charging according to claim 1, is characterized in that, described battery: electrokinetic cell, high-tension battery or super capacitor.
6. control a device for battery charging, it is characterized in that, described device comprises: at least one low pressure break-make switching device and master controller, and wherein, described master controller comprises: the electrical parameters detection module, adjusting module and the control module that connect successively;
Described electrical parameters detection module, for detecting the electrical quantity at the two ends, contact of low pressure break-make switching device to be controlled on battery charger, wherein, described electrical quantity comprises: voltage, and/or electric current, described low pressure break-make switching device comprises: low-voltage relay, lv contactor or low-voltage circuit breaker;
Described adjusting module, the electrical quantity that the power module for being connected with described low pressure break-make switching device according to the described electrical quantity adjustment detected exports;
Described control module, when described electrical quantity for the two ends, contact when described low pressure break-make switching device meets pre-conditioned, control the closed of described low pressure break-make switching device or disconnect, to make conducting or disconnection between the described power module that connects to described low pressure break-make switching device and corresponding charging port.
7. the device of control battery charging according to claim 6, it is characterized in that, described electrical parameters detection module comprises: the first detecting unit, for when low pressure break-make switching device to be controlled switches to closure state by off-state, gather the voltage at the two ends, contact of described low pressure break-make switching device;
Described adjusting module comprises: the first adjustment unit, the voltage that the power module for being connected with described low pressure break-make switching device according to described Voltage Cortrol exports;
Described control module comprises: the first control unit, when absolute value for the difference of the voltage at the two ends, contact when described low pressure break-make switching device is less than the first preset value, control described low pressure break-make switching device to close, to make conducting between the power module that connects to described low pressure break-make switching device and corresponding charging port.
8. the device of control battery charging according to claim 6, it is characterized in that, described electrical parameters detection module comprises: the second detecting unit, for when low pressure break-make switching device to be controlled switches to off-state by closure state, gather the voltage at the two ends, contact of described low pressure break-make switching device and the electric current of described low pressure break-make switching device place circuit;
Described adjusting module comprises: the second adjustment unit, the voltage and current that the described power module for being connected with described low pressure break-make switching device according to described voltage and the adjustment of described electric current exports;
Described control module comprises: the second control unit, absolute value for the difference of the voltage at the two ends, contact when described low pressure break-make switching device be less than the first preset value and the electric current of described low pressure break-make switching device place circuit reaches the second preset value time, control described low pressure break-make switching device to disconnect, with make the described power module that connects to described low pressure break-make switching device and corresponding charging port separated.
9. the device of control battery charging according to claim 6, is characterized in that, described battery: electrokinetic cell, high-tension battery or super capacitor.
10. one kind controls the system of battery charging, it is characterized in that, described system comprises: the power module be connected with the input of described low pressure break-make switching device, the charging port be connected with the contact output of described low pressure break-make switching device and the device as described in claim 6-9.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425575A (en) * | 2017-08-31 | 2017-12-01 | 西安特锐德智能充电科技有限公司 | A kind of intelligent power distribution system of charging electric vehicle |
| CN107528373A (en) * | 2017-09-26 | 2017-12-29 | 东莞市奇立电源有限公司 | A kind of relay switch control device and its method |
| CN108321869A (en) * | 2018-01-30 | 2018-07-24 | 西安特锐德智能充电科技有限公司 | A kind of charging equipment of electric automobile |
| CN110501056A (en) * | 2019-06-21 | 2019-11-26 | 山东建安实业有限公司 | A kind of gas meter, flow meter assembly line and assemble method |
| CN113162188A (en) * | 2021-05-07 | 2021-07-23 | 广东汇天航空航天科技有限公司 | Charging control method, device and system for electric manned aircraft |
| CN113162188B (en) * | 2021-05-07 | 2024-04-12 | 广东汇天航空航天科技有限公司 | Electric manned aircraft charging control method, device and system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162833A (en) * | 2010-12-10 | 2011-08-24 | 奇瑞汽车股份有限公司 | Method and circuit for detecting working condition of relay in high voltage loop of electric automobile |
| CN102501770A (en) * | 2011-11-03 | 2012-06-20 | 中国科学院电工研究所 | Electrical system for pure electric vehicle |
| CN102717723A (en) * | 2012-05-15 | 2012-10-10 | 北京汽车新能源汽车有限公司 | Optimized energy system for electric automobile |
| CN104052121A (en) * | 2014-06-24 | 2014-09-17 | 安徽安凯汽车股份有限公司 | Pure electric bus intelligent charging control system and control method thereof |
| CN104836269A (en) * | 2014-11-21 | 2015-08-12 | 北汽福田汽车股份有限公司 | Battery management system, control device and control method of relay thereof |
| CN104917231A (en) * | 2015-05-28 | 2015-09-16 | 安徽江淮汽车股份有限公司 | Battery system of low-voltage hybrid vehicle |
| CN204701471U (en) * | 2015-02-10 | 2015-10-14 | 南京汽车集团有限公司 | A kind of battery-driven car high-voltage safety protective circuit |
-
2015
- 2015-12-14 CN CN201510926580.1A patent/CN105449762B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162833A (en) * | 2010-12-10 | 2011-08-24 | 奇瑞汽车股份有限公司 | Method and circuit for detecting working condition of relay in high voltage loop of electric automobile |
| CN102501770A (en) * | 2011-11-03 | 2012-06-20 | 中国科学院电工研究所 | Electrical system for pure electric vehicle |
| CN102717723A (en) * | 2012-05-15 | 2012-10-10 | 北京汽车新能源汽车有限公司 | Optimized energy system for electric automobile |
| CN104052121A (en) * | 2014-06-24 | 2014-09-17 | 安徽安凯汽车股份有限公司 | Pure electric bus intelligent charging control system and control method thereof |
| CN104836269A (en) * | 2014-11-21 | 2015-08-12 | 北汽福田汽车股份有限公司 | Battery management system, control device and control method of relay thereof |
| CN204701471U (en) * | 2015-02-10 | 2015-10-14 | 南京汽车集团有限公司 | A kind of battery-driven car high-voltage safety protective circuit |
| CN104917231A (en) * | 2015-05-28 | 2015-09-16 | 安徽江淮汽车股份有限公司 | Battery system of low-voltage hybrid vehicle |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425575A (en) * | 2017-08-31 | 2017-12-01 | 西安特锐德智能充电科技有限公司 | A kind of intelligent power distribution system of charging electric vehicle |
| CN107425575B (en) * | 2017-08-31 | 2024-02-09 | 西安特来电智能充电科技有限公司 | Intelligent power distribution system for charging electric automobile |
| CN107528373A (en) * | 2017-09-26 | 2017-12-29 | 东莞市奇立电源有限公司 | A kind of relay switch control device and its method |
| CN108321869A (en) * | 2018-01-30 | 2018-07-24 | 西安特锐德智能充电科技有限公司 | A kind of charging equipment of electric automobile |
| CN110501056A (en) * | 2019-06-21 | 2019-11-26 | 山东建安实业有限公司 | A kind of gas meter, flow meter assembly line and assemble method |
| CN113162188A (en) * | 2021-05-07 | 2021-07-23 | 广东汇天航空航天科技有限公司 | Charging control method, device and system for electric manned aircraft |
| CN113162188B (en) * | 2021-05-07 | 2024-04-12 | 广东汇天航空航天科技有限公司 | Electric manned aircraft charging control method, device and system |
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|---|---|
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