CN109980752B - Intelligent battery capable of configuring output and configuration method of intelligent battery - Google Patents
Intelligent battery capable of configuring output and configuration method of intelligent battery Download PDFInfo
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- CN109980752B CN109980752B CN201910385623.8A CN201910385623A CN109980752B CN 109980752 B CN109980752 B CN 109980752B CN 201910385623 A CN201910385623 A CN 201910385623A CN 109980752 B CN109980752 B CN 109980752B
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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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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Abstract
The invention relates to an intelligent battery with configurable output and a configuration method of the intelligent battery, belongs to the technical field of intelligent batteries, and solves the problems that the operation cost of the existing shared battery is high and the differentiated requirements of users cannot be met. The smart battery includes: an electric core; the communication interface is used for acquiring rated voltage parameters of the electric equipment; the voltage conversion assembly is used for adjusting the voltage of the output end of the intelligent battery according to the rated voltage parameter of the electric equipment, so that the voltage of the output end of the intelligent battery is matched with the rated voltage parameter of the electric equipment connected to the discharging interface end; the discharging interface is used for connecting the electric equipment and supplying power to the electric equipment. The differentiated requirements of different users can be met, and the operation cost of the shared battery is reduced.
Description
Technical Field
The invention relates to the technical field of intelligent batteries, in particular to an intelligent battery with configurable output and a configuration method of the intelligent battery.
Background
Nowadays, more and more secondary batteries have been added to the sharing rank. The secondary battery provides a more convenient choice for the user, so that the user obtains great convenience in using the secondary battery.
However, in some applications, the electrical devices used by different users are different, and the specification requirements for the batteries are different. Taking an electric bicycle as an example, the requirements for the voltage of a power battery are divided into 36V, 48V, 60V and the like, and the corresponding driving motor power has various specifications of 350W, 500W, 800W and the like, and the corresponding protection currents are different. This differentiated need limits the widespread use of shared batteries.
For the above situation, the conventional practice of the battery provider is: according to different requirements of different users on batteries, the batteries with various specifications are prepared, and corresponding batteries are distributed according to different requirements of the users; however, the method increases the complexity of the flow of the shared battery, increases the operation cost of the shared battery, and is easy to cause errors during manual processing, thereby causing inconvenience and potential safety hazard to users. The other way is as follows: the non-mainstream users are abandoned, and a battery meeting the requirements of the mainstream users is provided, but the mode severely limits the use range of the shared battery.
Disclosure of Invention
In view of the foregoing analysis, the present invention aims to provide an intelligent battery with configurable output and a configuration method of the intelligent battery, so as to solve the problems that the operation cost of the existing shared battery is high and the differentiated requirements of users cannot be met.
The purpose of the invention is mainly realized by the following technical scheme:
a smart battery with configurable output, comprising:
an electric core;
the communication interface is used for acquiring rated voltage parameters of the electric equipment;
the voltage conversion assembly is used for adjusting the voltage of the output end of the intelligent battery according to the rated voltage parameter of the electric equipment, so that the voltage of the output end of the intelligent battery is matched with the rated voltage parameter of the electric equipment connected to the discharging interface end;
the discharging interface is used for connecting the electric equipment and supplying power to the electric equipment.
On the basis of the scheme, the invention is further improved as follows:
further, the voltage conversion assembly includes:
the device comprises an input sampling circuit, an output sampling circuit and a conversion control component;
the input sampling circuit is used for acquiring the sampling voltage of the battery cell;
the output sampling circuit is used for acquiring the sampling output voltage of the discharge interface end;
the conversion control assembly is used for adjusting the sampling voltage of the battery core or the sampling output voltage of the discharging interface end according to the rated voltage parameter of the electric equipment, so that the voltage of the output end of the intelligent battery is matched with the rated voltage parameter of the electric equipment connected to the discharging interface end.
Further, the conversion control component comprises a first conversion control unit, and the input sampling circuit comprises a resistor R1 and a voltage division circuit; the first conversion control unit enables the voltage of the output end of the intelligent battery to be matched with the rated voltage parameter of the electric equipment connected to the discharging interface end by adjusting the resistance value of the equivalent resistor of the voltage division circuit.
Further, the voltage dividing circuit is a digital potentiometer R2, and the first conversion control unit adjusts the resistance value of the digital potentiometer R2, so that the voltage matching of the output end of the intelligent battery is matched with the rated voltage parameter of the electric equipment at the discharging interface end;
alternatively, the first and second electrodes may be,
the voltage division circuit comprises a capacitor C3, a resistor R5 and a first switching device, wherein the capacitor C3, the resistor R5 and the first switching device are connected in parallel, and the first conversion control unit enables the voltage of the output end of the intelligent battery to be matched with the rated voltage parameter of the electric equipment connected to the discharging interface end by adjusting the duty ratio of the switching device.
Further, the output sampling circuit comprises a resistor R3 and a resistor R4,
the resistor R3 and the resistor R4 are connected in series and then connected in parallel with the discharge interface;
alternatively, the first and second electrodes may be,
and the resistor R3 and the resistor R4 are connected in series and then connected in parallel between the negative electrode of the battery cell and the negative electrode of the discharge interface.
Further, the conversion control component also comprises a differential amplifier, a PWM controller and a second switching device;
wherein the second switching device is connected in series between the battery cell and the discharge interface;
the first input end of the differential amplifier is used for receiving the sampling voltage of the battery core; the second input end is used for receiving the sampling output voltage of the discharge interface end;
and the control end FB of the PWM controller is connected with the output end of the differential amplifier, the duty ratio of output pulses of the PWM controller is adjusted by comparing the output voltage of the differential amplifier with the control voltage of the control end FB, and the second switching element is controlled to be switched on or switched off by utilizing the duty ratio, so that the voltage of the output end of the intelligent battery is matched with the rated voltage parameter of the electric equipment connected to the discharging interface end.
Further, the second switching device is a P-channel MOS transistor, a gate of the P-channel MOS transistor is connected to the output end of the PWM controller, a source of the P-channel MOS transistor is connected to the positive electrode of the battery cell, and a drain of the P-channel MOS transistor is connected to the positive electrode of the discharge interface;
at this time, the resistor R3 and the resistor R4 are connected in series and then connected in parallel with the discharge interface.
Further, the second switching device is an N-channel MOS transistor, a gate of the N-channel MOS transistor is connected to the output terminal of the PWM controller, and a source of the N-channel MOS transistor is connected to the negative electrode of the discharge interface; the drain electrode of the N-channel MOS tube is connected with the negative electrode of the battery cell;
at this time, the resistor R3 and the resistor R4 are connected in series and then connected in parallel with the negative electrode of the battery cell and the negative electrode of the discharge interface.
Further, the conversion control component comprises a second conversion control unit and a third switching device;
wherein the third switching device is connected in series between the battery cell and the discharge interface;
the second conversion control unit is used for adjusting the duty ratio of the output pulse of the conversion control unit according to the sampling voltage of the battery core and the sampling output voltage of the discharge interface end, and controlling the third switching device to be switched on or switched off by using the duty ratio, so that the voltage of the output end of the intelligent battery is matched with the rated voltage parameter of the electric equipment connected to the discharge interface end.
The invention also provides a configuration method of the intelligent battery, which comprises the following steps:
step S1: when a user needs to acquire the right of use of the intelligent battery, the intelligent battery receives battery configuration requirement information through the communication interface;
step S2: the intelligent battery is configured according to the battery configuration demand information to obtain output meeting the battery configuration demand information, and the intelligent battery is released to a user;
step S3: when a user finishes occupying the intelligent battery, clearing configuration information in the intelligent battery;
the battery configuration requirement information at least comprises rated voltage parameters of the electric equipment.
The invention has the following beneficial effects: the intelligent battery with configurable output provided by the invention can intelligently configure the output of the battery according to the rated voltage parameter of the electric equipment, effectively reduces the operation cost of the shared battery, and can meet the differentiated requirements of users. Meanwhile, the intelligent battery can be guaranteed to output voltage in a high-efficiency and voltage-reducing mode, meanwhile, the discharging curve of the battery is kept, and the battery characteristics are completely reflected.
The invention also provides a configuration method of the intelligent battery, which can realize the configuration of the intelligent battery and meet the differentiated configuration requirements of different users.
In the invention, the technical schemes can be combined with each other to realize more preferable combination schemes. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.
Fig. 1 is a schematic structural diagram of a smart battery with configurable output according to an embodiment of the present invention;
fig. 2 is another schematic diagram of a configurable-output smart battery configuration provided by an embodiment of the present invention;
FIG. 3 is a schematic diagram of a configurable-output smart battery configuration according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a configurable output smart battery configuration according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a configurable output smart battery according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a configurable-output smart battery according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a configurable output smart battery configuration according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a connection relationship between an intelligent battery and a peripheral device according to an embodiment of the present invention;
fig. 9 is a flowchart of a configuration method of an intelligent battery according to an embodiment of the present invention;
fig. 10 is another schematic diagram of a connection relationship between an intelligent battery and a peripheral according to an embodiment of the present invention;
fig. 11 is another flowchart of a method for configuring an intelligent battery according to an embodiment of the present invention.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.
In 1 embodiment of the present invention, an intelligent battery with configurable output is disclosed, as shown in fig. 1, including:
an electric core; in order to meet the requirements of all different electric devices, the voltage of the battery cell is higher than or equal to the maximum rated voltage parameter of the electric device. In practical application, one battery cell may be used, or a plurality of battery cells may be used.
The communication interface is used for acquiring rated voltage parameters of the electric equipment;
the voltage conversion assembly is used for adjusting the voltage of the output end of the intelligent battery according to the rated voltage parameter of the electric equipment, so that the voltage of the output end of the intelligent battery is matched with the rated voltage parameter of the electric equipment connected to the discharging interface end; because the power equipment is driven, the voltage conversion component needs to have higher conversion efficiency;
the discharging interface is used for connecting the electric equipment and supplying power to the electric equipment.
In specific implementation, the intelligent battery with configurable output is connected with the electric equipment, specifically, the communication interface is electrically connected with the communication interface of the charging management equipment or the communication interface of the electric equipment, and is used for obtaining configuration information of the electric equipment, wherein the configuration information at least comprises rated voltage parameters of the electric equipment; the discharging interface is connected with the input port of the electric equipment and used for providing a converted proper power supply for the electric equipment.
Compared with the prior art, the intelligent battery with configurable output provided by the embodiment can obtain the rated voltage parameter of the electric equipment according to the user configuration information or the configuration information existing in the electric equipment, intelligently configures the output of the battery, effectively reduces the operation cost of the shared battery, and can meet the user differentiation requirements.
Specifically, the battery cell is 1 battery cell, or a battery core group is composed of a plurality of battery cells; the plurality of battery cores form a battery core group in a serial or parallel connection mode.
On the basis of the above-mentioned embodiments, optimization is performed to show a specific form of the voltage conversion assembly, as shown in fig. 2, the voltage conversion assembly includes:
the device comprises an input sampling circuit, an output sampling circuit and a conversion control component;
the input sampling circuit is used for acquiring the sampling voltage of the battery cell;
the output sampling circuit is used for acquiring the sampling output voltage of the discharge interface end;
the conversion control assembly is used for adjusting the sampling voltage of the battery core or the sampling output voltage of the discharging interface end according to the rated voltage parameter of the electric equipment, so that the voltage of the output end of the intelligent battery is matched with the rated voltage parameter of the electric equipment connected to the discharging interface end.
Make the voltage of intelligent battery output and connect in the rated voltage parameter looks adaptation of the consumer of interface end discharges, specifically refer to: after the configuration is completed, the voltage of the output end of the intelligent battery and the rated voltage parameter of the electric equipment at the discharging interface end are equal; in the using process of the electric equipment, the voltage of the output end of the intelligent battery is equal to the actual voltage of the electric equipment at the discharging interface end.
Preferably, the conversion control assembly controls the sampling voltage of the battery core to be equal to the sampling output voltage of the discharge interface end, so that the output voltage of the battery core and the voltage of the discharge interface end keep a fixed proportional relationship, and the voltage of the output end of the intelligent battery is further adapted to the rated voltage parameter of the electric equipment connected to the discharge interface end. Thereby achieving a controllable divided voltage output.
Preferably, the conversion control component is a first conversion control unit, and the input sampling circuit comprises a resistor R1 and a voltage division circuit; the first conversion control unit enables the voltage of the output end of the intelligent battery to be matched with the rated voltage parameter of the electric equipment connected to the discharging interface end by adjusting the resistance value of the equivalent resistor of the voltage division circuit.
Optionally, the voltage dividing circuit may be a digital potentiometer R2, and the first conversion control unit adjusts a resistance value of the digital potentiometer R2 to make a sampling voltage of the battery cell equal to a sampling output voltage of the discharge interface end, so that a voltage of the output end of the intelligent battery is adapted to a rated voltage parameter of an electrical device connected to the discharge interface end; at the moment, the resistor R1 and the digital potentiometer R2 are connected in series and then are connected in parallel with the battery cell; illustratively, one end of a resistor R1 is connected with the positive electrode of the battery cell, the other end of the resistor R1 is connected with one end of a digital potentiometer R2, and the other end of the digital potentiometer R2 is connected with the negative electrode of the battery cell;
optionally, the voltage dividing circuit may include a capacitor C3, a resistor R5, and a first switching device, where the capacitor C3, the resistor R5, and the first switching device are connected in parallel, and the first conversion control unit adjusts a duty ratio of the switching device to make a sampling voltage of the battery cell equal to a sampling output voltage of the discharge interface end, so that a voltage at an output end of the intelligent battery is adapted to a rated voltage parameter of an electric device connected to the discharge interface end; illustratively, when the first switching device is an N-channel MOS transistor 1, the circuit connection relationship is as follows: the resistor R5 is connected in parallel with the capacitor C3, one end of the resistor R5 is connected with the cathode of the battery cell and the drain electrode of the N-channel MOS tube 2, the other end of the resistor R5 is connected with one end of the resistor R1 and the source electrode of the N-channel MOS tube 2, and the gate electrode of the N-channel MOS tube 2 is controlled by the control unit;
preferably, the output sampling circuit comprises a resistor R3, a resistor R4,
optionally, the resistor R3 and the resistor R4 are connected in series and then connected in parallel with the discharge interface; illustratively, one end of the resistor R3 is connected to the positive electrode of the discharge interface, the other end of the resistor R3 is connected to one end of the resistor R4, and the other end of the resistor R4 is connected to the negative electrode of the discharge interface;
optionally, the resistor R3 and the resistor R4 are connected in series and then connected in parallel with the negative electrode of the battery cell and the negative electrode of the discharge interface; illustratively, one end of the resistor R4 is connected to the negative electrode of the battery cell, and the other end of the resistor R4 is connected to one end of the resistor R3; the other end of the resistor R3 is connected with the negative electrode of the discharge interface.
The input sampling circuit and the output sampling circuit are in various forms, and any combination of the input sampling circuit and the output sampling circuit can realize the functions of the invention; or, a voltage division circuit is arranged in the output sampling circuit, and the functions of the invention can also be realized:
(1) when the input sampling circuit selection resistor R1 is connected in series with the potentiometer R2 and the output sampling circuit selection resistor R3 is connected in series with the resistor R4 and then connected in parallel with the discharge interface, as shown in fig. 3,
the first conversion control unit adjusts the resistance value of a digital potentiometer R2 through the following formula, so that the sampling voltage of the battery cell is equal to the sampling output voltage of the discharge interface end:
wherein, VbatIs the voltage of the cell, VoutThe rated voltage parameter of the electric equipment is.
At this time, VbatAnd VoutThe proportional relationship between the two is determined as follows:
(2) when the input sampling circuit selection resistor R1, the potentiometer R2 and the resistor R3 and the resistor R4 in the output sampling circuit are connected in series and then are connected in parallel with the negative electrode of the battery core and the negative electrode of the discharge interface,
the first conversion control unit adjusts the resistance value of a digital potentiometer R2 through the following formula, so that the sampling voltage of the battery cell is equal to the sampling output voltage of the discharge interface end:
at this time, VbatAnd VoutThe proportional relationship between the two is determined as follows:
(3) when the input sampling circuit selects the resistor R1, the capacitor C3, the resistor R5 and the first switching device, and the resistor R3 and the resistor R4 in the output sampling circuit are connected in series and then are connected in parallel with the cathode of the battery core and the cathode of the discharge interface,
the first conversion control unit adjusts the duty ratio D of the switching device through the following formula, so that the sampling voltage of the battery cell is equal to the sampling output voltage of the discharge interface end:
at this time, VbatAnd VoutThe proportional relationship between the two is determined as follows:
in order to ensure that the intelligent battery keeps the discharge curve of the battery and completely embodies the battery characteristics while outputting the intelligent battery with high efficiency in a voltage reduction mode, the following scheme is obtained by optimizing the intelligent battery on the basis of the embodiment:
the conversion control component also comprises a differential amplifier, a PWM controller and a second switching device;
wherein the second switching device is connected in series between the battery cell and the discharge interface;
the first input end of the differential amplifier is used for receiving the sampling voltage of the battery core; the second input end is used for receiving the sampling output voltage of the discharge interface end; illustratively, the inverting input end of the differential amplifier is connected with the resistor R1 and the common end of the voltage division circuit; the non-inverting input end of the differential amplifier is connected with the common end points of the resistor R3 and the resistor R4;
and the control end FB of the PWM controller is connected with the output end of the differential amplifier, the duty ratio of output pulses of the PWM controller is adjusted by comparing the output voltage of the differential amplifier with the control voltage of the control end FB, and the second switching element is controlled to be switched on or switched off by utilizing the duty ratio, so that the voltages of the first input end and the second input end of the differential amplifier are equal, and the voltage of the output end of the intelligent battery is matched with the rated voltage parameter of the electric equipment connected to the discharging interface end.
Wherein the differential amplifier has a sufficiently high gain to be maintained by closed loop negative feedback
In the following preferred schemes, the circuit connection relationship when the second switching device is a P-channel MOS transistor or an N-channel MOS transistor is also given respectively:
preferably, the second switching device is a P-channel MOS transistor, a gate of the P-channel MOS transistor is connected to the output end of the PWM controller, a source of the P-channel MOS transistor is connected to the positive electrode of the battery cell, and a drain of the P-channel MOS transistor is connected to the positive electrode of the discharge interface;
at this time, the resistor R3 and the resistor R4 are connected in series and then connected in parallel with the discharge interface;
at this time, preferably, in order to implement filtering of the PWM pulse, an inductor L is connected between the drain of the P-channel MOS transistor and one end of the resistor R3;
in order to ensure that the current in the L has a continuous loop after the P-channel MOS tube is switched off, a diode D1 is connected in parallel in the forward direction between the drain electrode of the P-channel MOS tube and the cathode of the battery cell;
in order to realize the filtering of the PWM pulse, a capacitor C1 is connected in parallel between the anode and the cathode of the discharge interface;
in order to filter the PWM pulse, the positive input terminal of the differential amplifier is connected to the negative electrode of the battery cell through a capacitor C2.
In consideration of the advantages of an N-channel MOS transistor in a heavy current load, a negative switch is often adopted in practical design, and preferably, the second switch device is an N-channel MOS transistor, a gate of the N-channel MOS transistor is connected to the output end of the PWM controller, and a source of the N-channel MOS transistor is connected to a negative electrode of the discharge interface; the drain electrode of the N-channel MOS tube is connected with the negative electrode of the battery cell;
at this time, the resistor R3 and the resistor R4 are connected in series and then connected in parallel with the negative electrode of the battery cell and the negative electrode of the discharge interface;
at the moment, in order to realize the filtering of the PWM pulse, an inductor L is connected between the source electrode of the N-channel MOS tube and the negative electrode of the discharge interface;
in order to ensure a continuous current loop of the L during the closing period of the N-channel MOS tube, a diode D1 is connected in parallel in the forward direction between the source electrode of the N-channel MOS tube and the anode of the battery cell;
in order to realize the filtering of the PWM pulse, a capacitor C1 is connected in parallel between the anode and the cathode of the discharge interface;
in order to filter the PWM pulse, the positive input terminal of the differential amplifier is connected to the negative electrode of the battery cell through a capacitor C2.
Fig. 4-6 show schematic structural diagrams of 3 specific intelligent batteries with configurable output.
The core idea of the preferred scheme is that the sampled voltage of the battery core is equal to the sampled output voltage of the discharging interface end by adjusting the resistance value of the equivalent resistor of the voltage dividing circuit, so that the voltage of the output end of the intelligent battery is adapted to the rated voltage parameter of the electric equipment connected to the discharging interface end. In addition, the sampling voltage of the battery core and the sampling output voltage of the discharging interface end can be directly equal through software control without adjusting the resistance value of the voltage dividing resistor:
the conversion control component comprises a second conversion control unit and a third switching device;
wherein the third switching device is connected in series between the battery cell and the discharge interface;
the second conversion control unit is used for adjusting the duty ratio of the output pulse of the conversion control unit according to the sampling voltage of the battery core and the sampling output voltage of the discharge interface end, and controlling the third switching device to be switched on or switched off by using the duty ratio, so that the voltage of the output end of the intelligent battery is matched with the rated voltage parameter of the electric equipment connected to the discharge interface end.
As shown in fig. 7, the input sampling circuit includes: a resistor R1 and a resistor R6; the resistor R1 and the resistor R6 are connected in series and then connected in parallel with the battery cell; illustratively, one end of a resistor R1 is connected with the positive electrode of the battery cell, the other end of a resistor R1 is connected with one end of a resistor R6, and the other end of a resistor R6 is connected with the negative electrode of the battery cell;
and the resistor R3 and the resistor R4 are connected in series and then connected in parallel with the negative electrode of the battery cell and the negative electrode of the discharge interface.
The third switching device is an N-channel MOS tube, and the source electrode of the N-channel MOS tube is connected with the cathode of the discharge interface; the drain electrode of the N-channel MOS tube is connected with the negative electrode of the battery cell;
the first input end of the second conversion control unit is connected with the common point of R1 and R6, and the second input end of the conversion control unit is connected with the common point of R3 and R4;
the third and fourth input ends of the second conversion control unit are connected with the communication interface,
the output end of the second conversion control unit is connected with the grid electrode of the MOS tube;
the second conversion control unit controls the conduction duty ratio of the MOS tube according to the following formula, and the voltage V of the second input end of the conversion control unit is enabled to be in a closed-loop negative feedback mode1Satisfies the following conditions:
V1＝(1-k)V0
wherein the voltage of the first input terminal of the second conversion control unit
k＝Vout/VbatFor convenience of calculation, conditions are set: R4/(R3+ R4) ═ R2/(R1+ R2).
Because the intelligent battery can be used after being configured, the invention also provides a configuration method of the intelligent battery so as to meet the configuration requirement of the intelligent battery.
The configuration method of the intelligent battery comprises the following steps:
step S1: when a user needs to acquire the right of use of the intelligent battery, the intelligent battery acquires the battery configuration requirement information of the user through a communication interface, and the battery configuration requirement information is usually downloaded from a server;
step S2: the intelligent battery is configured according to the battery configuration demand information to obtain output meeting the battery configuration demand information, and the intelligent battery is released to a user;
step S3: when a user finishes occupying the intelligent battery, clearing configuration information in the intelligent battery;
the battery configuration requirement information at least comprises rated voltage parameters of the electric equipment.
The configuration process of the intelligent battery in the invention at least comprises the following two use scenes:
(1) the intelligent battery performs information interaction with the server through a communication interface on charging or battery storage equipment, battery configuration demand information reserved during user registration is stored in the server, and the battery configuration demand information at least comprises rated voltage parameters of user electric equipment; as shown in fig. 8;
(2) the electric equipment stores battery configuration demand information and realizes information interaction with the intelligent battery through a communication interface of the electric equipment. As shown in fig. 10.
In the usage scenario (1), the configuration method is shown in the flowchart of fig. 9,
the step S1 further includes the steps of:
step S11: when a user needs to acquire the use right of the intelligent battery, the user sends a battery use right request instruction to the server;
step S12: the server reads the battery configuration demand information reserved during user registration according to the battery use right request instruction, and sends the battery configuration demand information to the charging or battery storage equipment;
step S13: and the intelligent battery receives the battery configuration demand information through the charging or battery storage equipment.
In the usage scenario (2), the configuration method is shown in the flowchart of fig. 11,
and when the intelligent battery detects that the discharging interface is connected with the electric equipment, reading battery configuration demand information provided by the electric equipment through the communication interface and configuring the output of the battery into an output state matched with the rated voltage parameter of the equipment according to the information.
The step S3 further performs the following operation to determine whether the device has finished occupying the smart battery:
and when the intelligent battery returns to the charging or battery storage equipment and indicates that the equipment finishes occupying the intelligent battery, clearing the configuration information in the intelligent battery.
By configuring the intelligent battery, the operation requirement of the intelligent battery in the using process of the shared battery can be met, and the using range of the shared battery is effectively expanded.
Those skilled in the art will appreciate that all or part of the flow of the method implementing the above embodiments may be implemented by hardware associated with computer program instructions, and the program may be stored in a computer readable storage medium. The computer readable storage medium is a magnetic disk, an optical disk, a read-only memory or a random access memory.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (8)
1. A smart battery with configurable output, comprising:
an electric core;
the communication interface is used for acquiring rated voltage parameters of the electric equipment;
the voltage conversion assembly is used for adjusting the voltage of the output end of the intelligent battery according to the rated voltage parameter of the electric equipment, so that the voltage of the output end of the intelligent battery is matched with the rated voltage parameter of the electric equipment connected to the discharging interface end;
the discharging interface is used for connecting the electric equipment and supplying power to the electric equipment;
the voltage conversion assembly includes:
the device comprises an input sampling circuit, an output sampling circuit and a conversion control component;
the input sampling circuit is used for acquiring the sampling voltage of the battery cell;
the output sampling circuit is used for acquiring the sampling output voltage of the discharge interface end;
the conversion control assembly is used for adjusting the sampling voltage of the battery core or the sampling output voltage of the discharging interface end according to the rated voltage parameter of the electric equipment, so that the voltage of the output end of the intelligent battery is matched with the rated voltage parameter of the electric equipment connected to the discharging interface end; the adjusting of the sampling voltage of the battery core or the sampling output voltage of the discharge interface end according to the rated voltage parameter of the power consumption device includes: the sampling voltage of the battery core is controlled to be equal to the sampling output voltage of the discharging interface end, so that the output voltage of the battery core and the voltage of the discharging interface end keep a fixed proportional relation;
the conversion control component comprises a first conversion control unit, and the input sampling circuit comprises a resistor R1 and a voltage division circuit; the first conversion control unit enables the voltage of the output end of the intelligent battery to be matched with the rated voltage parameter of the electric equipment connected to the discharging interface end by adjusting the resistance value of the equivalent resistor of the voltage division circuit.
2. The intelligent battery with configurable output according to claim 1,
the voltage division circuit is a digital potentiometer R2, and the first conversion control unit enables the voltage matching of the output end of the intelligent battery to be matched with the rated voltage parameter of the electric equipment at the discharging interface end by adjusting the resistance value of the digital potentiometer R2;
alternatively, the first and second electrodes may be,
the voltage division circuit comprises a capacitor C3, a resistor R5 and a first switching device, wherein the capacitor C3, the resistor R5 and the first switching device are connected in parallel, and the first conversion control unit enables the voltage of the output end of the intelligent battery to be matched with the rated voltage parameter of the electric equipment connected to the discharging interface end by adjusting the duty ratio of the switching device.
3. The intelligent battery with configurable output according to claim 1,
the output sampling circuit comprises a resistor R3 and a resistor R4,
the resistor R3 and the resistor R4 are connected in series and then connected in parallel with the discharge interface;
alternatively, the first and second electrodes may be,
and the resistor R3 and the resistor R4 are connected in series and then connected in parallel between the negative electrode of the battery cell and the negative electrode of the discharge interface.
4. The intelligent battery with configurable output according to claim 3, wherein the conversion control component further comprises a differential amplifier, a PWM controller, a second switching device;
wherein the second switching device is connected in series between the battery cell and the discharge interface;
the first input end of the differential amplifier is used for receiving the sampling voltage of the battery core; the second input end is used for receiving the sampling output voltage of the discharge interface end;
and the control end FB of the PWM controller is connected with the output end of the differential amplifier, the duty ratio of output pulses of the PWM controller is adjusted by comparing the output voltage of the differential amplifier with the control voltage of the control end FB, and the second switching element is controlled to be switched on or switched off by utilizing the duty ratio, so that the voltage of the output end of the intelligent battery is matched with the rated voltage parameter of the electric equipment connected to the discharging interface end.
5. The intelligent battery with configurable output according to claim 4,
the second switching device is a P-channel MOS tube, a grid electrode of the P-channel MOS tube is connected with the output end of the PWM controller, a source electrode of the P-channel MOS tube is connected with the anode of the battery cell, and a drain electrode of the P-channel MOS tube is connected with the anode of the discharge interface;
at this time, the resistor R3 and the resistor R4 are connected in series and then connected in parallel with the discharge interface.
6. The intelligent battery with configurable output according to claim 4,
the second switching device is an N-channel MOS tube, the grid electrode of the N-channel MOS tube is connected with the output end of the PWM controller, and the source electrode of the N-channel MOS tube is connected with the negative electrode of the discharge interface; the drain electrode of the N-channel MOS tube is connected with the negative electrode of the battery cell;
at this time, the resistor R3 and the resistor R4 are connected in series and then connected in parallel with the negative electrode of the battery cell and the negative electrode of the discharge interface.
7. The intelligent battery with configurable output according to claim 1, wherein the conversion control component comprises a second conversion control unit and a third switching device;
wherein the third switching device is connected in series between the battery cell and the discharge interface;
the second conversion control unit is used for adjusting the duty ratio of the output pulse of the conversion control unit according to the sampling voltage of the battery core and the sampling output voltage of the discharge interface end, and controlling the third switching device to be switched on or switched off by using the duty ratio, so that the voltage of the output end of the intelligent battery is matched with the rated voltage parameter of the electric equipment connected to the discharge interface end.
8. A configuration method of the intelligent battery in any one of claims 1-7, characterized by comprising the following steps:
step S1: when a user needs to acquire the right of use of the intelligent battery, the intelligent battery receives battery configuration requirement information corresponding to equipment to which the user belongs through the communication interface;
step S2: the intelligent battery is configured according to the battery configuration demand information to obtain output meeting the battery configuration demand information, and the intelligent battery is released to a user;
step S3: when a user finishes occupying the intelligent battery, clearing configuration information in the intelligent battery;
the battery configuration requirement information at least comprises rated voltage parameters of the electric equipment.
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| CN114655071A (en) * | 2022-02-18 | 2022-06-24 | 华为数字能源技术有限公司 | Battery, battery control method and electric vehicle |
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