CN219740024U - Electric supplementing circuit and system for vehicle storage battery - Google Patents
Electric supplementing circuit and system for vehicle storage battery Download PDFInfo
- Publication number
- CN219740024U CN219740024U CN202320493413.2U CN202320493413U CN219740024U CN 219740024 U CN219740024 U CN 219740024U CN 202320493413 U CN202320493413 U CN 202320493413U CN 219740024 U CN219740024 U CN 219740024U
- Authority
- CN
- China
- Prior art keywords
- power
- battery
- power generation
- electric energy
- storage battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000001502 supplementing effect Effects 0.000 title claims abstract description 31
- 238000010248 power generation Methods 0.000 claims abstract description 110
- 238000006243 chemical reaction Methods 0.000 claims abstract description 84
- 230000005611 electricity Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000013078 crystal Substances 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 6
- 239000013589 supplement Substances 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a power supplementing circuit and a system of a vehicle storage battery, wherein the circuit comprises a power generation device, an electric energy conversion device and the vehicle storage battery, wherein the power generation device comprises a power storage battery, a power storage battery and a power storage battery, wherein the power storage battery comprises a power storage battery body, a power storage battery body and a power storage: the power generation output end of the power generation device is electrically connected with the power input end of the power conversion device, and the power output end of the power conversion device is electrically connected with the power supplementing input end of the storage battery; the power generation device is used for generating power and transmitting the electric energy generated in the power generation process to the electric energy conversion device; the electric energy conversion device is used for converting the electric energy generated by the power generation device into the available electric energy of the storage battery and supplementing the storage battery with the available electric energy. The utility model can timely supplement electricity to the storage battery through the power generation device on the vehicle, thereby being beneficial to reducing the overdischarge of the storage battery and prolonging the service life of the storage battery as much as possible.
Description
Technical Field
The utility model relates to the technical field of vehicles, in particular to a power supplementing circuit and system of a vehicle storage battery.
Background
New energy vehicles (such as electric vehicles) have become a trend of vehicle development in the future due to the advantages of less fuel consumption, less exhaust emission, quieter running and the like. Currently, when a new energy vehicle in the market is in a long-time parking state, a control module, an anti-theft alarm module and the like of the vehicle are still in a working state, namely, the storage battery of the vehicle is still required to supply power, and if the electric quantity of the storage battery is not supplied for a long time, the storage battery is overdischarged, namely, the voltage of the storage battery is reduced below a specified safety value. Practice shows that the overdischarge of the storage battery may cause damage to electrode active materials in the storage battery, and the reaction capacity is lost, so that the service life of the storage battery is shortened.
It is important to reduce the overdischarge of the battery to extend the service life of the battery as much as possible.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a power supply circuit and a system of a vehicle storage battery, which can reduce the overdischarge of the storage battery so as to prolong the service life of the storage battery as far as possible.
In order to solve the technical problem, a first aspect of the present utility model discloses a power supplementing circuit for a vehicle storage battery, the circuit comprising a power generation device, a power conversion device and the vehicle storage battery, wherein:
the power generation output end of the power generation device is electrically connected with the power input end of the power conversion device, and the power output end of the power conversion device is electrically connected with the power supplementing input end of the storage battery;
the power generation device is used for generating power and transmitting the electric energy generated in the power generation process to the electric energy conversion device;
the electric energy conversion device is used for converting the electric energy generated by the power generation device into the available electric energy of the storage battery and supplementing the electric energy of the storage battery by utilizing the available electric energy.
As an alternative embodiment, in the first aspect of the present utility model, the circuit further comprises a battery management device, wherein:
the battery parameter acquisition end of the battery management equipment is electrically connected with the battery parameter output end of the storage battery, and the power compensation control end of the battery management equipment is electrically connected with the power compensation control end of the electric energy conversion device;
the battery management equipment is used for collecting battery parameters of the storage battery and sending a first control signal to the electric energy conversion device according to the battery parameters;
the electric energy conversion device is further used for converting the electric energy generated by the power generation device into the available electric energy of the storage battery according to the first control signal, and supplementing electricity to the storage battery by utilizing the available electric energy.
As an alternative embodiment, in the first aspect of the present utility model, the circuit further includes a controlled switch, the power generation output terminal of the power generation device includes a power generation output positive electrode and a power generation output negative electrode, and the power input terminal of the power conversion device includes a power input positive electrode and a power input negative electrode, wherein:
the first transmission end of the controlled switch is electrically connected with the power generation output cathode of the power generation device, the second transmission end of the controlled switch is electrically connected with the power input cathode of the power conversion device, and the switch controlled end of the controlled switch is electrically connected with the switch driving end of the battery management device;
the power generation output anode of the power generation device is electrically connected with the power input anode of the power conversion device.
As an alternative embodiment, in the first aspect of the present utility model, the circuit further comprises a crystal oscillator, wherein:
the first end of the crystal oscillator is electrically connected with the power generation output anode of the power generation device and the power input anode of the power conversion device, the second end of the crystal oscillator is electrically connected with the second power transmission end of the controlled switch and the power input cathode of the power conversion device, and the third end of the crystal oscillator is electrically connected with the power generation voltage acquisition end of the battery management equipment.
As an alternative embodiment, in the first aspect of the present utility model, the circuit further includes a rectifying device, the power output terminal of the power conversion device includes a power output positive electrode and a power output negative electrode, and the power supply input terminal of the storage battery includes a power supply input positive electrode and a power supply input negative electrode, where:
the electric energy output cathode of the electric energy conversion device is electrically connected with the input end of the rectifying device, and the output end of the rectifying device is electrically connected with the power supplementing input cathode of the storage battery;
and the electric energy output anode of the electric energy conversion device is electrically connected with the power supplementing input anode of the storage battery.
As an optional implementation manner, in the first aspect of the present utility model, the first wake-up controlled terminal of the battery management device is configured to be electrically connected to a wake-up signal output terminal of one or more electric devices of the vehicle, the power supply output terminal of the storage battery and the first electric signal detection terminal of the battery management device are configured to be electrically connected to an electric power input terminal of each electric device.
As an optional implementation manner, in the first aspect of the present utility model, the second wake-up controlled terminal of the battery management device is configured to be electrically connected to the wake-up signal output terminals of one or more charging devices, the power input terminal of the storage battery and the second electrical signal detection terminal of the battery management device are configured to be electrically connected to the charging output terminal of each of the charging devices.
As an optional implementation manner, in the first aspect of the present utility model, the power generation output positive electrode of the power generation device is further electrically connected to a power generation current collection end of the battery management device.
As an alternative embodiment, in the first aspect of the utility model, the circuit further comprises a power supply battery, wherein: the power supply end of the power supply battery is electrically connected with the power receiving end of the battery management equipment.
The second aspect of the utility model discloses a power supplementing system of the vehicle storage battery, and the electronic component comprises the power supplementing circuit of the vehicle storage battery disclosed in the first aspect of the utility model.
Compared with the prior art, the embodiment of the utility model has the following beneficial effects:
in the embodiment of the utility model, the power generation output end of the power generation device is electrically connected with the power input end of the power conversion device, and the power output end of the power conversion device is electrically connected with the power supplementing input end of the storage battery; the power generation device is used for generating power and transmitting the electric energy generated in the power generation process to the electric energy conversion device; the electric energy conversion device is used for converting the electric energy generated by the power generation device into the available electric energy of the storage battery and supplementing the storage battery with the available electric energy. Therefore, the utility model can timely supplement electricity to the storage battery through the power generation device on the vehicle, thereby being beneficial to reducing the overdischarge of the storage battery and prolonging the service life of the storage battery as much as possible.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a power supply circuit of a vehicle battery according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a circuit for supplementing power to another vehicle battery according to an embodiment of the present utility model;
fig. 3 is a schematic structural diagram of an electric system for a vehicle battery according to an embodiment of the present utility model.
Detailed Description
For a better understanding and implementation, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, unless explicitly specified and limited otherwise, the term "electrically connected" in the description of the utility model and in the claims and in the above-mentioned figures should be understood in a broad sense, for example, as a fixed electrical connection, as a removable electrical connection, or as an integral electrical connection; can be mechanically and electrically connected or can be mutually communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. Furthermore, the terms first, second and the like in the description and in the claims of the utility model and in the foregoing figures, are used for distinguishing between different objects and not for describing a particular sequential order, and are not intended to cover any exclusive inclusion. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1
Referring to fig. 1, fig. 1 is a schematic structural diagram of a power supply circuit of a vehicle battery according to an embodiment of the utility model. The power supply circuit of the vehicle battery described in fig. 1 may be applied to any vehicle powered by a battery, for example: hybrid electric vehicles, new energy vehicles, etc., the embodiments of the present utility model are not limited. As shown in fig. 1, the power supplementing circuit of the vehicle battery may include a power generation device G, a power conversion device T, and a battery B1 of the vehicle, wherein:
the power generation output end of the power generation device G is electrically connected with the power input end of the power conversion device T, and the power output end of the power conversion device T is electrically connected with the power supplementing input end of the storage battery B1;
the power generation device G is used for generating power and transmitting the power generated in the power generation process to the power conversion device T;
the electric energy conversion device T is configured to convert the electric energy generated by the power generation device G into usable electric energy of the battery B1, and supplement the battery B1 with the usable electric energy.
Therefore, the circuit shown in fig. 1 can timely supplement electricity to the storage battery through the power generation device on the vehicle, so that overdischarge of the storage battery is reduced, and the service life of the storage battery is prolonged as much as possible.
In the embodiment of the present utility model, the electric energy conversion device T may supplement the power to the storage battery B1 with the converted available electric energy, that is, the electric energy conversion device T may store the available electric energy in the storage battery B1, further optionally, if the vehicle is currently running, the electric energy conversion device T may store the available electric energy automatically, or may directly output the available electric energy to each electric device of the vehicle to supply power. Therefore, the waste of electric energy generated by the power generation device can be reduced, the condition that electricity is used while electricity is supplemented can be reduced, and the service life of the storage battery is further prolonged.
Alternatively, the power generation device G may be a clean energy power generation device that may generate power using natural resources in the environment of the target vehicle, and further alternatively, the power generation device may include a wind power generation device and/or a solar power generation device. Alternatively, the power generation device G may be mounted outside the body of the vehicle, preferably, the power generation device G may be mounted outside the roof of the vehicle, for example, one or more fans having a certain power may be mounted outside the roof as a wind power generation device. Therefore, the vehicle storage battery can be charged through clean energy, pollution caused by battery charging is reduced, wind power resources and solar energy resources are easily available in the nature, the convenience degree of battery charging is improved, the charging cost is reduced, and in addition, the damage of small current generated by the wind power generation device to the storage battery is small, so that the service life of the storage battery is further prolonged.
Alternatively, the electric energy conversion device T may be a DC-DC converter (direct current to direct current converter) or an AC-DC converter (alternating current to direct current converter), which is not limited by the embodiment of the present utility model, and is specifically determined according to practical requirements, for example, if the power generation device G is a solar power generation device, the DC-DC converter is used as the electric energy conversion device T, if the power generation device G is a wind power generation device and the wind power generation device is provided with a rectifier, the DC-DC converter is used as the electric energy conversion device T, and if the power generation device G is a wind power generation device and the wind power generation device is not provided with a rectifier, the AC-DC converter is used as the electric energy conversion device T. It can be seen that this can improve the degree of matching of the power conversion device with the power generation device.
In an alternative embodiment, as illustrated in fig. 2, the circuit may further comprise a battery management device BMS, wherein:
the battery parameter acquisition end of the battery management equipment BMS is electrically connected with the battery parameter output end of the storage battery B1, and the electricity compensation control end of the battery management equipment BMS is electrically connected with the electricity compensation controlled end of the electric energy conversion device T;
the battery management device BMS is configured to collect battery parameters of the storage battery B1, and send a first control signal to the electric energy conversion device T according to the battery parameters, for example: if the battery parameter indicates that the storage battery B1 meets the power-on triggering condition, a first control signal is sent to the electric energy conversion device T;
the electric energy conversion device T is further configured to convert the electric energy generated by the power generation device G into usable electric energy of the battery B1 according to the first control signal, and supplement the electric energy of the battery B1 with the usable electric energy.
Optionally, the first control signal is an enable control signal and/or a wake-up signal, which is used to bring the power conversion device T into an operational state.
Therefore, the circuit described in fig. 2 can be implemented to judge whether the battery needs to be charged according to the battery parameters of the battery, and if the battery needs to be charged, the electric energy conversion device is controlled to charge the battery, so that the situation of charging when the electric quantity of the battery is sufficient is reduced, the situation of excessive charging of the battery is further reduced, and the service life of the battery is further prolonged.
Optionally, the battery management device BMS is further configured to collect battery parameters after power supply of the storage battery B1 during the power supply process of the storage battery B1, and send a second control signal to the electric energy conversion device T when the battery parameters after power supply indicate that the storage battery B1 meets a power supply stop condition, so that the electric energy conversion device T stops supplying power to the storage battery B1. Therefore, the situation of excessive power supply of the storage battery can be further reduced, and the service life of the storage battery is further prolonged.
Alternatively, the battery parameters may include one or more of a battery voltage, a discharge current, a charge current, a battery charge amount, and the like of battery B1. Preferably, the battery voltage is used as a battery parameter for the power up trigger judgment. If the battery parameter is smaller than the first battery parameter threshold, the battery management device BMS determines that the storage battery B1 meets the power-up triggering condition, and if the battery parameter is larger than the second battery parameter threshold after power-up, the battery management device BMS determines that the storage battery B1 meets the power-up stopping condition. Note that, the first battery parameter threshold is smaller than the second battery parameter threshold, for example, if the battery parameter is the battery voltage V, the first battery parameter threshold is Vmin, the second battery parameter threshold is Vmax, vmin < Vmax, if V < Vmin, the battery satisfies the power-up triggering condition, power-up needs to be performed, and if V > Vmax, the battery satisfies the power-up stopping condition, power-up needs to be stopped.
In another alternative embodiment, as shown in fig. 2, the circuit may further include a controlled switch S, the power generation output terminal of the power generation device G includes a power generation output positive electrode and a power generation output negative electrode, and the power input terminal of the power conversion device T includes a power input positive electrode and a power input negative electrode, where:
the first transmission end of the controlled switch S is electrically connected with the power generation output cathode of the power generation device G, the second transmission end of the controlled switch S is electrically connected with the power input cathode of the power conversion device T, and the switch controlled end of the controlled switch S is electrically connected with the switch driving end of the battery management device BMS;
the positive electrode of the power generation output of the power generation device G is electrically connected with the positive electrode of the power input of the power conversion device T.
Optionally, the battery management device BMS is further configured to send a switch-on signal to the controlled switch S to turn on the controlled switch S when the battery parameter indicates that the battery B1 meets the power-up triggering condition, and further optionally, the battery management device BMS is further configured to send a switch-off signal to the controlled switch S to turn off the controlled switch S when the battery parameter indicates that the battery B1 meets the power-up stopping condition.
In this alternative embodiment, optionally, as shown in fig. 2, the controlled switch S is a relay, the switch controlled end of the controlled switch S includes a first switch controlled end and a second switch controlled end, the switch driving end of the battery management device BMS includes a first switch driving end and a second switch driving end, the first switch controlled end of the controlled switch S is electrically connected to the first switch driving end of the battery management device BMS, and the second switch controlled end of the controlled switch S is electrically connected to the second switch driving end of the battery management device BMS.
It can be seen that implementing the circuit described in fig. 2 also enables the battery management device to control the on-off of the controlled switch between the power generation device and the power conversion device, improving the accuracy of the power compensation control, and also reducing the current backflow of the storage battery to the power generation device.
In yet another alternative embodiment, as depicted in fig. 2, the circuit may further comprise a crystal oscillator Y, wherein:
the first end of the crystal oscillator Y is electrically connected with the power generation output anode of the power generation device G and the power input anode of the power conversion device T, the second end of the crystal oscillator Y is electrically connected with the second power transmission end of the controlled switch S and the power input cathode of the power conversion device T, and the third end of the crystal oscillator Y is electrically connected with the power generation voltage acquisition end of the battery management equipment BMS.
Optionally, the crystal oscillator Y is used for generating a clock signal according to the voltages at two ends of the crystal oscillator Y;
the battery management device BMS is further used for collecting clock signals generated by the crystal oscillator Y, determining the power generation voltage of the power generation device G according to the clock signals, and generating a first control signal matched with the power generation voltage.
Therefore, implementing the circuit described in fig. 2 enables the battery management device to detect the generated voltage of the power generation device, so as to improve the matching degree of the first control signal for controlling the power conversion device and the generated voltage, further improve the working accuracy of the power conversion device, reduce the waste of the power generated by the power generation device or the overload condition of the power conversion device, and further, because the sensitivity degree of the crystal oscillator to the voltage signal is higher, the generated voltage is determined by using the clock signal generated by the crystal oscillator Y, so that the accuracy of the detected generated voltage can be improved.
In yet another alternative embodiment, as shown in fig. 2, the positive electrode of the power generation output of the power generation device G is further electrically connected to the power generation current collection terminal of the battery management device BMS, and the battery management device BMS is further configured to collect the power generation current of the power generation device G and generate the first control signal matched with the power generation current.
Therefore, implementing the circuit described in fig. 2 enables the battery management device to detect the generated voltage of the power generation device, so as to improve the matching degree of the first control signal for controlling the power conversion device and the generated current, further improve the working accuracy of the power conversion device, and reduce the waste of the electric energy generated by the power generation device or the overload condition of the power conversion device.
In yet another alternative embodiment, as shown in fig. 2, the circuit may further include a rectifying device D, the power output terminal of the power conversion device T includes a power output positive electrode and a power output negative electrode, and the power-supplementing input terminal of the battery B1 includes a power-supplementing input positive electrode and a power-supplementing input negative electrode, where:
the electric energy output cathode of the electric energy conversion device T is electrically connected with the input end of the rectifying device D, and the output end of the rectifying device D is electrically connected with the power supplementing input cathode of the storage battery B1;
the positive electrode of the electric energy output of the electric energy conversion device T is electrically connected with the positive electrode of the power supplementing input of the storage battery B1.
Alternatively, the rectifying device D may be any one of a half-wave rectifier, a full-wave rectifier, and a single-phase rectifier, which is not limited in the embodiment of the present utility model. Further alternatively, the half-wave rectifier may be a diode, and if a diode is used as the rectifying device D, the input end of the rectifying device D is the anode of the diode, and the output end of the rectifying device D is the cathode of the diode.
Therefore, the circuit described in fig. 2 can also utilize the rectifying device to rectify the electric energy input to the storage battery by the electric energy conversion device, so that the stability of the electric current for supplementing the storage battery is improved, the service life of the storage battery is prolonged, and meanwhile, the situation that the storage battery reversely outputs the electric current to the electric energy conversion device can also be realized, the overdischarge of the storage battery is further reduced, and the service life of the storage battery is further prolonged.
In yet another alternative embodiment, as shown in fig. 2, the first wake-up controlled terminal of the battery management device BMS is configured to be electrically connected to the wake-up signal output terminal of one or more electric devices M of the vehicle, the power output terminal of the battery B1, and the first electric signal detection terminal of the battery management device BMS is configured to be electrically connected to the electric power input terminal of each electric device M.
Optionally, the electric device M may be a device of the vehicle itself, such as a vehicle-mounted management system, an in-vehicle air conditioner, a vehicle-mounted LED display, and an in-vehicle sound box, or may be an external device accessed by a user, such as a user terminal connected to the vehicle-mounted management system through a USB interface, which is not limited by the present utility model.
Optionally, the battery management device BMS is further configured to detect whether a discharge wake-up signal sent by the electric device M is received within a first preset duration, where the discharge wake-up signal is used to wake up a certain battery management function of the battery management device BMS to control a discharging operation of the storage battery, for example, when a user turns on an in-vehicle air conditioner, the in-vehicle management system or the in-vehicle air conditioner may send the discharge wake-up signal to the battery management device BMS to enable the battery management device BMS to control the storage battery B1 to supply power to the in-vehicle air conditioner;
and the battery management equipment BMS is further used for carrying out addition measurement on a first electric signal between the power output end of the storage battery B1 and the electricity utilization input end of the electric equipment M within a second preset time period when receiving the discharge wake-up signal, and if the detected first electric signal does not meet the electricity utilization requirement of the electric equipment M, the battery management equipment BMS sends a first control signal to the electric energy conversion device T or further detects battery parameters of the storage battery B1. Further alternatively, the first electrical signal may be a current signal or a voltage signal.
The battery management device BMS is further configured to send a first control signal to the electric energy conversion device T, or further detect a battery parameter of the storage battery B1 when the discharge wake-up signal sent by the electric device M is not received within a first preset period of time.
It can be seen that implementing the circuit described in fig. 2 can further determine whether to supplement electricity to the storage battery or to supplement electricity to the storage battery when the battery management device does not receive the discharge wake-up signal for a long time, so that the storage battery can be timely supplemented with electricity when the vehicle is in a parking state for a long time.
In yet another alternative embodiment, as shown in fig. 2, the second wake-up controlled terminal of the battery management device BMS is electrically connected to the wake-up signal output terminal of one or more charging devices C, the power input terminal of the battery B1 and the second electrical signal detection terminal of the battery management device BMS are electrically connected to the charging output terminal of each charging device C.
Optionally, the charging device C may include a charging peg and/or an on-board charger.
Optionally, the battery management device BMS is further configured to detect whether a charging wake-up signal sent by the charging device C is received within a third preset period of time, where the charging wake-up signal is used to wake up a certain battery management function of the battery management device BMS to control a charging operation of the storage battery, for example, when the vehicle is connected to the charging post, the charging post may send the charging wake-up signal to the battery management device BMS to enable the battery management device BMS to control the charging of the storage battery B1;
the battery management device BMS is further configured to detect a second electrical signal between the power input end of the battery B1 and the charging output end of the charging device C within a fourth preset duration after receiving the charging wake-up signal, and if the detected second electrical signal does not meet the charging requirement of the battery B1, send a first control signal to the electrical energy conversion device T, or further detect a battery parameter of the battery B1. Further alternatively, the second electrical signal may be a current signal or a voltage signal.
The battery management device BMS is further configured to send a first control signal to the electric energy conversion device T, or further detect a battery parameter of the storage battery B1, when the charging wake-up signal sent by the charging device C is not received within a third preset period of time.
Therefore, the circuit described in fig. 2 can also be used for judging whether the battery needs to be charged or not when the battery management device does not receive the charging wake-up signal for a long time, so that the situation that the battery is excessively discharged due to the fact that the battery is not charged for a long time is reduced, the battery can be charged when the charging device cannot meet the charging requirement of the battery, and the flexibility of battery charging is improved.
Optionally, after the battery management device BMS receives the discharge wake-up signal or the charge wake-up signal, if the battery management device BMS is in a sleep state, performing a wake-up operation according to the discharge wake-up signal or the charge wake-up signal; if the discharging wake-up signal is not received within the first preset time period, the charging wake-up signal is not received within the third preset time period, and the battery management device BMS is in a dormant state, the battery management device BMS performs self-wake-up operation.
In yet another alternative embodiment, as shown in fig. 2, the circuit may further comprise a power supply battery B2, wherein: the power supply end of the power supply battery B2 is electrically connected to the power receiving end of the battery management device BMS. Optionally, the power supply battery B2 is used to supply power to the battery management device BMS.
Optionally, as shown in fig. 2, the power supply end of the power supply battery B2 includes a power supply anode and a power supply cathode, the power receiving end of the battery management device BMS includes a power receiving anode and a power receiving cathode, the power supply anode of the power supply battery B2 is electrically connected with the power receiving anode of the battery management device BMS, and the power supply cathode of the power supply battery B2 is electrically connected with the power receiving cathode of the battery management device BMS.
It can be seen that implementing the circuit described in fig. 2 also enables the battery management device to be powered by an additional power supply battery, thereby reducing the occurrence of situations in which the battery management device is out of operation and the battery cannot be recharged due to overdischarge of the battery.
Example two
Referring to fig. 3, fig. 3 is a schematic structural diagram of a power supply system of a vehicle battery according to an embodiment of the utility model. The power supply system of the vehicle battery described in fig. 3 may be applied to any vehicle that uses a battery for power supply, for example: hybrid electric vehicles, new energy vehicles, etc., the embodiments of the present utility model are not limited. As shown in fig. 3, the power supply system of the vehicle battery at least includes a power storage circuit of the vehicle battery disclosed in the first embodiment of the utility model.
It can be seen that implementing the system described in fig. 3 is capable of timely recharging the battery via the on-board power generation device, thereby facilitating a reduction in overdischarge of the battery, so as to extend the service life of the battery as much as possible.
The foregoing describes in detail a circuit and a system for supplementing power to a vehicle battery disclosed in the embodiments of the present utility model, and specific embodiments are applied herein to illustrate the principles and implementation of the present utility model, but the foregoing preferred embodiments are not intended to limit the present utility model, and the foregoing description of the embodiments is only for helping to understand the method and core idea of the present utility model; also, it is apparent to those skilled in the art from this disclosure that many changes can be made in this embodiment and this application without departing from the spirit and scope of the utility model, which is set forth in the following claims.
Claims (10)
1. A circuit for supplementing power to a vehicle battery, the circuit comprising a power generation device, a power conversion device, and a battery for the vehicle, wherein:
the power generation output end of the power generation device is electrically connected with the power input end of the power conversion device, and the power output end of the power conversion device is electrically connected with the power supplementing input end of the storage battery;
the power generation device is used for generating power and transmitting the electric energy generated in the power generation process to the electric energy conversion device;
the electric energy conversion device is used for converting the electric energy generated by the power generation device into the available electric energy of the storage battery and supplementing the electric energy of the storage battery by utilizing the available electric energy.
2. The power replenishment circuit for a vehicle battery according to claim 1, wherein the circuit further comprises a battery management device, wherein:
the battery parameter acquisition end of the battery management equipment is electrically connected with the battery parameter output end of the storage battery, and the power compensation control end of the battery management equipment is electrically connected with the power compensation control end of the electric energy conversion device;
the battery management equipment is used for collecting battery parameters of the storage battery and sending a first control signal to the electric energy conversion device according to the battery parameters;
the electric energy conversion device is further used for converting the electric energy generated by the power generation device into the available electric energy of the storage battery according to the first control signal, and supplementing electricity to the storage battery by utilizing the available electric energy.
3. The vehicle battery recharging circuit of claim 2, further comprising a controlled switch, wherein the power generation output of the power generation device comprises a power generation output positive pole and a power generation output negative pole, and the power input of the power conversion device comprises a power input positive pole and a power input negative pole, wherein:
the first transmission end of the controlled switch is electrically connected with the power generation output cathode of the power generation device, the second transmission end of the controlled switch is electrically connected with the power input cathode of the power conversion device, and the switch controlled end of the controlled switch is electrically connected with the switch driving end of the battery management device;
the power generation output anode of the power generation device is electrically connected with the power input anode of the power conversion device.
4. The vehicle battery recharging circuit of claim 3, further comprising a crystal oscillator, wherein:
the first end of the crystal oscillator is electrically connected with the power generation output anode of the power generation device and the power input anode of the power conversion device, the second end of the crystal oscillator is electrically connected with the second power transmission end of the controlled switch and the power input cathode of the power conversion device, and the third end of the crystal oscillator is electrically connected with the power generation voltage acquisition end of the battery management equipment.
5. The electrical circuit of any one of claims 2-4, further comprising a rectifying device, wherein the electrical power output of the electrical power conversion device comprises an electrical power output positive electrode and an electrical power output negative electrode, and wherein the electrical power input of the battery comprises an electrical power input positive electrode and an electrical power input negative electrode, wherein:
the electric energy output cathode of the electric energy conversion device is electrically connected with the input end of the rectifying device, and the output end of the rectifying device is electrically connected with the power supplementing input cathode of the storage battery;
and the electric energy output anode of the electric energy conversion device is electrically connected with the power supplementing input anode of the storage battery.
6. The electrical circuit of any of claims 2-4, wherein the first wake-up controlled terminal of the battery management device is configured to electrically connect to a wake-up signal output terminal of one or more powered devices of the vehicle, the power output terminal of the battery and the first electrical signal detection terminal of the battery management device are configured to electrically connect to a power input terminal of each of the powered devices.
7. The electrical charging circuit of a vehicle battery according to any one of claims 2-4, wherein the second wake-up controlled terminal of the battery management device is configured to electrically connect wake-up signal output terminals of one or more charging devices, the power input terminal of the battery and the second electrical signal detection terminal of the battery management device are configured to electrically connect the charging output terminals of each of the charging devices.
8. The electric power supply circuit for a vehicle storage battery according to claim 3 or 4, wherein the power generation output positive electrode of the power generation device is further electrically connected to a power generation current collection terminal of the battery management apparatus.
9. The vehicle battery recharging circuit of any of claims 2-4, further comprising a power supply battery, wherein: the power supply end of the power supply battery is electrically connected with the power receiving end of the battery management equipment.
10. A system for supplementing electricity to a vehicle battery, the system comprising the electricity supplementing circuit of the vehicle battery according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320493413.2U CN219740024U (en) | 2023-03-14 | 2023-03-14 | Electric supplementing circuit and system for vehicle storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320493413.2U CN219740024U (en) | 2023-03-14 | 2023-03-14 | Electric supplementing circuit and system for vehicle storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219740024U true CN219740024U (en) | 2023-09-22 |
Family
ID=88054159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320493413.2U Active CN219740024U (en) | 2023-03-14 | 2023-03-14 | Electric supplementing circuit and system for vehicle storage battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219740024U (en) |
-
2023
- 2023-03-14 CN CN202320493413.2U patent/CN219740024U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20100182075A1 (en) | Power energy supply system with ultracapacitor for vehicle | |
| CN111231726A (en) | Control method and circuit of mobile charging pile | |
| CN211377693U (en) | Power transmission line hybrid power supply based on solar energy and induction energy obtaining | |
| CN102957169A (en) | Uninterruptible power supply system with improved conversion efficiency of power supply | |
| CN219740024U (en) | Electric supplementing circuit and system for vehicle storage battery | |
| CN113544007A (en) | Control circuit, battery management system and electrochemical device | |
| CN105914870A (en) | Communication base station stand-by power supply system based on activation-type cell and wind-solar complementary power supply system | |
| CN104485716A (en) | Solar electrical bicycle charging device additionally installed on parking shed | |
| CN113650574B (en) | Battery electricity supplementing system for vehicle | |
| CN215300200U (en) | Circuit of compatible different voltage lithium batteries of power frequency inverter | |
| CN204304538U (en) | A kind of solar electric vehicle charging device being installed at carport | |
| CN205489722U (en) | Electric vehicle charger with portable power supply | |
| CN102820688A (en) | Automobile power system | |
| CN112810463A (en) | Charging system and method for electric automobile | |
| CN210526333U (en) | Mobile charging vehicle | |
| CN204103581U (en) | The electric power-feeding structure of blood-collecting car and blood sampling mobile unit | |
| JPH11155242A (en) | Operating method of sunlight power generation device | |
| CN207737130U (en) | A kind of low-speed vehicle BMS powersupply systems | |
| JP3910725B2 (en) | Power system | |
| CN102035222A (en) | Control system and control method for DC/DC converter | |
| CN2636433Y (en) | Solar energy power source controller device | |
| CN214112472U (en) | Storage battery management device and system | |
| CN110556970A (en) | charging and discharging control circuit, power generation and supply control system and electric locomotive | |
| CN211127239U (en) | Novel lithium battery application system | |
| CN116365674A (en) | Method, device and system for supplementing electricity to vehicle storage battery and computer storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |