CN210041425U - Current management device - Google Patents

Abstract

The utility model relates to an electric current management device, include: the device comprises a path management module, a metering protection module, a battery module and a power supply module; the metering protection module is connected with the battery module and is used for metering the electric quantity of the battery module; the path management module is connected with the power supply module, the metering protection module and the load and used for switching a flow path of current from the battery module and/or the power supply module according to the electric quantity and/or the current flowing to the load. The current management device can adjust the currents of different flow paths, can meet the requirement of a load on energy, and ensures the stable operation of equipment through seamless switching of the flow paths; moreover, the stable and reliable operation of the equipment can be ensured through reasonable distribution of different loops of current.

Description

Current management device

Technical Field

The utility model relates to an mobile unit field especially relates to an electric current management device.

Background

In the vehicle-mounted equipment, the main power supply mode of the vehicle is to supply power from a main power supply of the vehicle, but when the main power supply is disconnected or abnormal, the vehicle is shut down, and other equipment in the vehicle is also immediately powered off, so that the stability of the vehicle after shut down is influenced.

Therefore, a new current management device is needed to ensure the stability of the vehicle after the vehicle is turned off.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem, according to the utility model discloses an embodiment provides an electric current management device, include: the device comprises a path management module, a metering protection module, a battery module and a power supply module; the metering protection module is connected with the battery module and is used for metering the electric quantity of the battery module; the path management module is connected with the power supply module, the metering protection module and the load and used for switching a flow path of current from the battery module and/or the power supply module according to the electric quantity and/or the current flowing to the load.

In one possible implementation, the current flow path includes a first flow path for distributing the current of the power supply module to the load, and the current in the first flow path flows through at least the power supply module, the path management module and the load in sequence.

In one possible implementation, the current flow path includes a second flow path, the second flow path is used for distributing the current of the power supply module to the battery module, and the current in the second flow path flows through at least the power supply module, the path management module, the metering protection module and the battery module in sequence.

In one possible implementation, the flow path of the current includes a third flow path, the third flow path is used for distributing the current of the battery module to the load, and the current in the third flow path flows through at least the battery module, the metering protection module, the path management module and the load in sequence.

In one possible implementation, the metering protection module is configured to send a first electrical signal to the path management module when the battery module is fully charged, and the path management module switches to the first flow path according to the first electrical signal.

In a possible implementation manner, the metering protection module is configured to send a second electrical signal to the path management module when the electric quantity of the battery module is lower than a first threshold and the current flowing to the load is larger than a second threshold, and the path management module switches to the second flow path according to the second electrical signal.

In one possible implementation, the path management module is further configured to switch to the third flow path if the current flowing to the load is below a third threshold.

In a possible implementation manner, the current management apparatus further includes a processor module, the processor module is connected to the path management module, and the processor module is configured to control the path management module to switch a flow path of current.

In one possible implementation, the metering protection module is further configured to protect the battery module.

In one possible implementation, the load is connected to at least one protection module, and the protection module is configured to block a current flowing to the load in case of a current abnormality.

The current management device can adjust the currents of different flow paths, can meet the requirement of a load on energy, and ensures the stable operation of equipment through seamless switching of the flow paths; moreover, the stable and reliable operation of the equipment can be ensured through reasonable distribution of different loops of current.

Other features and aspects of the present invention will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present invention and, together with the description, serve to explain the principles of the invention.

Fig. 1 shows a schematic structural diagram of a current management device according to an embodiment of the present disclosure.

Fig. 2 shows a schematic diagram of a first flow path of a current management device according to an embodiment of the present disclosure.

Fig. 3 shows a schematic diagram of a second flow path of a current management device according to an embodiment of the present disclosure.

Fig. 4 shows a schematic diagram of a third flow path of a current management device according to an embodiment of the present disclosure.

Fig. 5 shows a schematic structural diagram of a current management device according to an embodiment of the present disclosure.

Detailed Description

Various exemplary embodiments, features and aspects of the present invention will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present invention.

In vehicle-mounted equipment, such as mining vehicle-mounted equipment, the main power supply mode is to supply power from a vehicle (namely, to supply power from a main power supply or an external power supply of the vehicle), and the equipment is powered off immediately after the vehicle is switched off. The embodiment of the utility model provides an electric current management device, the power consumption condition that probably exists after flame-out from the vehicle is started, through carrying out dynamic allocation with the electric current in the main route, dynamic allocation electric current exports load and reserve battery, can descend the influence to the source under the prerequisite of guaranteeing the load, improves the availability factor to the electric energy.

Fig. 1 shows a schematic structural diagram of a current management device according to an embodiment of the present disclosure. As shown in fig. 1, the current management apparatus 10 includes: a path management module 11, a metering protection module 12, a battery module 13, and a power supply module 14.

The metering protection module 12 is connected with the battery module 13, and the metering protection module 12 is used for metering the electric quantity of the battery module 13.

The path management module 11 is connected to the power module 14, the metering protection module 12 and the load 15, and is configured to switch a flow path of the current from the battery module 13 and/or the power module 14 according to the amount of the power and/or the current flowing to the load.

As shown in fig. 1, the battery module 13, the metering protection module 12, the path management module 11, and the power supply module 14 are connected in series in this order, and the load 15 is connected to the path management module 11.

For example, the battery module 13 may be a plurality of (e.g., four) lithium batteries connected in series, or may also be a polymer battery, and the structure of the battery module 13 may be selected according to actual needs, which is not limited in this disclosure.

For example, the power module 14 may be an external power source, or may be a main power source in a vehicle, and the structure of the power module 14 may be selected according to actual needs, which is not limited in this disclosure.

For example, the load 15 may be a sensor (e.g., a temperature sensor, a humidity sensor, etc.) or a communication device, and the specific structure of the load 15 may be selected according to actual needs, which is not limited in this disclosure.

For example, the metering protection module 12 may be any module capable of metering the amount of charge of the battery module 13, such as detecting the amount of charge of the power module by detecting the voltage, current, power, etc. of the battery module 13. The metrology protection module 12 may be implemented based on existing technology, for example, the metrology protection module 12 may be a metrology chip of Linte (LT) or Texas Instruments (TI). The path management module 11 may be any module capable of switching a current path according to an external instruction (for example, an instruction indicating the amount of power of a battery module, an instruction indicating the magnitude of current, or power, or the like), and may be, for example, an LTC4020 chip.

The current management apparatus 10 can output the current in the power module 14 to the load 15 through the path management module 11 to perform normal power supply, so as to ensure the normal operation of the load 15. The current management apparatus 10 may also output a part of the current in the power module 14 to the battery module 13 to charge the battery module 13 when there is a surplus of the power supplied by the power module 14 and the battery needs to be charged (for example, the electric energy provided by the power module 14 may satisfy the power requirement of the load 14 and the battery is short of power). The current management apparatus 10 may also output the current in the battery module 13 to the load 15 in the case where the power supply module 14 stops supplying power, or output the current in the battery module 13 to the load 15 for compensation in the case where the power supply module 14 is short of supplying power.

With the current management device 10, when the vehicle-mounted power supply (for example, the mining vehicle-mounted power supply) is shut down, flameout and power off, and the related vehicle-mounted equipment needs to continuously work, a standby power supply can be provided for the vehicle-mounted equipment, and the situation that the vehicle-mounted equipment uses the standby power supply for a long time can be avoided.

The current management device 10 can ensure power supply to a load, reduce the influence of a main power supply (power supply module) on the power supply to the load, and improve the use efficiency of electric energy.

By the current management device 10, currents of different flow paths can be adjusted, the requirement of a load on energy can be met, and stable operation of equipment is ensured by seamless switching of the flow paths; moreover, the stable and reliable operation of the equipment can be ensured through reasonable distribution of different loops of current.

In one possible implementation, the flow path of the current includes a first flow path.

Fig. 2 shows a schematic diagram of a first flow path of a current management device according to an embodiment of the present disclosure. As shown in fig. 2, the first flow path is used to distribute the current of the power module 14 to the load 15, and the current in the first flow path flows through at least the power module 14, the path management module 11 and the load 15 in sequence.

In the first flow path, current provided by the power module 14 is provided directly through the path management module 11 to the load 15 to power the load 15. Normally, the power module 14 can directly supply the load 15 with its required power.

In one possible implementation, the flow path of the current includes a second flow path.

Fig. 3 shows a schematic diagram of a second flow path of a current management device according to an embodiment of the present disclosure. As shown in fig. 3, the second flow path is used to distribute the current of the power module 14 to the battery module 13, and the current in the second flow path flows through at least the power module 14, the path management module 11, the metering protection module 12 and the battery module 13 in sequence.

In the second flow path, a part of the current output by the power module 14 may charge the battery module 13, and the current output by the power module 14 flows through the path management module 11 to charge the battery module 13, storing energy.

When no load or light load exists, the idle margin of the power module 14 may provide energy storage for the battery module 13, support a CC (Constant Current) mode and a CV (Constant Voltage) mode, and ensure the reliability and safety of the battery module 13.

In one possible implementation, the flow path of the current includes a third flow path.

Fig. 4 shows a schematic diagram of a third flow path of a current management device according to an embodiment of the present disclosure. As shown in fig. 4, the third flow path is used to distribute the current of the battery module 13 to the load 15, and the current in the third flow path flows through at least the battery module 13, the metering protection module 12, the path management module 11, and the load 15 in sequence.

In the third flow path, the power of the battery module 13 may be partially used to supply power to the load 15, and the battery module 13 supplies an output current to the load 15 through the path management module 11, releasing a portion of the power of the battery module 13.

In one possible implementation, when the power module 15 (e.g., main power) loop is open or cannot provide the power demand required by the load 15, the battery module 13 may be used to additionally provide the power required by the load 15.

Note that the direction indicated by the arrow in fig. 2, 3, and 4 indicates the flow direction of the current.

In one possible implementation, the metering protection module 12 is configured to send a first electrical signal to the path management module 11 in case the battery module 13 is fully charged, and the path management module 11 switches to the first flow path according to the first electrical signal.

For example, the path management module 11 may be an LTC4020 chip, and the metering protection module 12 may send the first electrical signal to a VFBMAX pin (number 26) of the LTC4020 chip, and after the VFBMAX pin (number 26) receives the first electrical signal, the LTC4020 chip switches to the first flow path.

In one possible implementation, the metering protection module 12 is configured to send a second electrical signal to the path management module 11 when the amount of power of the battery module 13 is lower than a first threshold and the current flowing to the load is greater than a second threshold, and the path management module 11 switches to the second flow path according to the second electrical signal. Through the second flow path, when the battery module 13 needs to be charged, and the power module 14 has surplus power supply capability, the current of the power module 14 is distributed to the battery module 13 to charge the battery module 13 under the condition that the load power supply requirement can be met.

In one possible implementation, the first threshold may be one of 1.3V to 1.8V. The values of the first threshold and the second threshold may be selected according to actual needs, which is not limited in this disclosure. The current may be detected by the path management module 11.

The current flowing to the load 15 may be an input current at the input end of the load or an output current of the power supply module, and the current flowing to the load 15 may be detected by the path management module 11.

For example, the path management module 11 may be an LTC4020 chip, the current flowing to the load 15 may be monitored by a current sensing resistor between a SENSVIN pin (number 7) and a SENSTOP pin (number 6), the metering protection module 12 may send a second electrical signal to a VFBMIN pin (number 19) of the LTC4020 chip when detecting that the power of the battery module 13 is lower than a first threshold and the current flowing to the load 15 is greater than a second threshold, and the LTC4020 chip switches to the second flow path after the VFBMIN pin (number 19) receives the second electrical signal.

In one possible implementation, the path management module 12 is further configured to switch to the third flow path if the current flowing to the load 15 is lower than a third threshold. Through the third flow path, power supply compensation can be performed by the battery module 13 in the case where the power supply module 14 is powered off or the power supply capability is insufficient.

The third threshold may be selected according to actual needs, which is not limited by this disclosure.

For example, the path management module 11 may be an LTC4020 chip, and may monitor the current flowing to the load 15 through a current sensing resistor between the senspin (number 7) and the sensop pin (number 6), and switch to the third flow path if the current flowing to the load 15 is lower than a third threshold.

Fig. 5 shows a schematic structural diagram of a current management device according to an embodiment of the present disclosure. As shown in fig. 5, the current management apparatus 20 includes: a path management module 21, a metering protection module 22, a battery module 23, and a power supply module 24. The metering protection module 22 is connected with the battery module 23, and the metering protection module 22 is used for metering the electric quantity of the battery module 23. The path management module 21 is connected to the power module 24, the metering protection module 22 and the load 25, and is configured to switch a flow path of the current from the battery module 23 and/or the power module 14 according to the amount of the power and/or the current flowing to the load.

As for the current management device 20, a part of the structure thereof is the same as or similar to that of the current management device described above, and thus, the description thereof is omitted.

In a possible implementation manner, the current management apparatus 20 may further include a processor module 26, the processor module 26 is connected to the path management module 21, and the processor module 26 is configured to control the path management module 21 to perform switching of the flow path of the current. In this way, the processor module can dynamically adjust the flow path of the current through the path management module 21 according to the power consumption condition of the load 25, the power consumption condition of the battery, and the like, so as to ensure seamless switching of the flow path of the current.

For example, the processing module 26 may be a processor, a single chip microcomputer, an MCU (micro controller Unit), or the like, and the structure of the processing module 26 may be selected according to actual needs, which is not limited in this disclosure.

The processor module 26 can judge the switching time of the flow path in real time according to the electricity utilization condition of the load 25 and the electric quantity of the battery module 23 recorded in the metering protection module 22 or the current flowing to the load, so that the flow path can be switched seamlessly, and the stable operation of the equipment is ensured; moreover, the stable and reliable operation of the equipment can be ensured through reasonable distribution of different loops of current. For example, the processing module 26 may receive the power of the battery module sent by the metering protection module 22 or the current value flowing to the load sent by the path management module 21, and generate a control signal to control the path management module 21 to perform the path switching with reference to the above path switching mechanism.

In one possible implementation, the processor module 26 may also be connected to the metrology protection module 22. The processor module 26 may read the charge data of the battery module 23 in the metering protection module 22, and display the charge data through the display module after transmitting the data to the display module (e.g., a liquid crystal display, a light emitting diode display, etc., which is not limited by this disclosure).

In one possible implementation, the metering protection module 22 is also used to protect the battery module 23. For example, when the metering protection module 22 detects an abnormality in current flowing to the battery module 23 (e.g., a sudden increase in current, a sudden decrease in current, etc.), the control path management module 21 cuts off the current flowing to the battery module 23, thereby protecting the battery module 23.

In a possible implementation, the load 25 may also be connected to at least one protection module for blocking the current flowing to said load in case of a current anomaly.

In one possible implementation, the path management module 21 is connected to the load 25 via a control and switching module 27. The control and conversion module 27 is used to maintain a stable output current and thus ensure a stable supply of power to the load 25. For example, the control and conversion module 27 may be a dc-dc converter or a current regulator, and the control and conversion module 27 may be selected according to actual needs as long as it can maintain the output current stable, which is not limited in this disclosure.

The current management device 20 can ensure power supply to the load 25, reduce the influence of the main power supply (power supply module) on the power supply to the load 25, and improve the use efficiency of electric energy.

The current management device 20 can adjust the currents of different flow paths, can meet the requirement of a load on energy, and ensures the stable operation of equipment through seamless switching of the flow paths; moreover, the stable and reliable operation of the equipment can be ensured through reasonable distribution of different loops of current.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. An electrical current management apparatus, comprising: the device comprises a path management module, a metering protection module, a battery module and a power supply module;

the metering protection module is connected with the battery module and is used for metering the electric quantity of the battery module;

the path management module is connected with the power supply module, the metering protection module and the load and used for switching a flow path of current from the battery module and/or the power supply module according to the electric quantity and/or the current flowing to the load.

2. The apparatus of claim 1, wherein the flow path of the current comprises a first flow path for distributing the current of the power module to the load, the first flow path having the current flowing at least in sequence through the power module, the path management module, and the load.

3. The apparatus of claim 1, wherein the flow path of the electrical current comprises a second flow path for distributing the electrical current of the power module to the battery module, the second flow path having electrical current flowing through at least the power module, the path management module, the metering protection module, and the battery module in sequence.

4. The apparatus of claim 1, wherein the flow path of the electrical current comprises a third flow path for distributing the electrical current of the battery module to the load, the third flow path having the electrical current flowing at least in sequence through the battery module, the metering protection module, the path management module, and the load.

5. The apparatus of claim 2, wherein the metering protection module is configured to send a first electrical signal to the path management module in the event that the battery module is fully charged, the path management module switching to the first flow path based on the first electrical signal.

6. The apparatus of claim 3, wherein the metering protection module is configured to send a second electrical signal to the path management module when the amount of power of the battery module is below a first threshold and the current flowing to the load is greater than a second threshold, and wherein the path management module switches to the second flow path based on the second electrical signal.

7. The apparatus of claim 4, wherein the path management module is further configured to switch to the third flow path if the current to the load is below a third threshold.

8. The device according to any one of claims 1 to 7, further comprising a processor module, wherein the processor module is connected to the path management module, and the processor module is configured to control the path management module to perform switching of the flow path of the current.

9. The device of any one of claims 1 to 7, wherein the metering protection module is further configured to protect the battery module.

10. The apparatus according to any one of claims 1 to 7, wherein the load is connected to at least one protection module for blocking current flow to the load in case of a current anomaly.

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