CN211981529U - Battery pack capable of saving power consumption - Google Patents

Abstract

The utility model relates to a save group battery of consumption, the device includes: the device comprises a controller, a resistor divider, a decoder, a plurality of switching tubes and a battery pack, wherein the battery pack comprises a plurality of batteries; the plurality of batteries are respectively connected with the corresponding switch tubes in series and used for controlling the power on and power off of the batteries corresponding to the switch tubes through the switch tubes; one end of the controller is connected with one end of the resistance voltage divider, and an electric load is connected with the other end of the resistance voltage divider; the other end of the controller is connected with one end of the decoder, and the other end of the decoder is respectively connected with the switch tubes to control the switch tubes to be opened and closed. The utility model discloses can reduce extra battery power loss, can switch over again between the multisection battery, carry out stable, reliable, effectual power supply for consumer.

Description

Battery pack capable of saving power consumption

Technical Field

The utility model relates to a power supply technical field, in particular to group battery of sparingly consumption.

Background

At present, terminal products on the market generally connect a plurality of batteries in series through diodes and then supply power to terminal equipment, the purpose of connecting the diodes in series is to prevent the batteries from self-consuming due to reverse discharge caused by respective voltage difference, and the disposable batteries are forbidden to be charged, so that the reverse charging can bring the safety risk of the use of the batteries. To reduce the power consumption of the diode, a schottky type diode with a voltage drop of only 0.3 volts across is generally selected. However, by adopting the technical scheme, the battery is not switchable, certain power consumption of the diode is still caused, and if a plurality of batteries are accumulated, the influence is larger.

SUMMERY OF THE UTILITY MODEL

The utility model provides a save group battery of consumption aims at solving following technical problem to a certain extent at least:

the battery power supply circuit in the prior art has high energy consumption and the battery can not be switched.

According to an aspect of the utility model, a battery pack of sparingly consumption is provided, include: the device comprises a controller, a resistor divider, a decoder, a plurality of switching tubes and a battery pack, wherein the battery pack comprises a plurality of batteries; the plurality of batteries are respectively connected with the corresponding switch tubes in series and used for controlling the power on and power off of the batteries corresponding to the switch tubes through the switch tubes; one end of the controller is connected with one end of the resistance voltage divider, and an electric load is connected with the other end of the resistance voltage divider; the other end of the controller is connected with one end of the decoder, and the other end of the decoder is respectively connected with the switch tubes to control the switch tubes to be opened and closed.

In one example, the controller is internally provided with an analog-to-digital converter, and an input end of the analog-to-digital converter is connected with the resistor voltage divider and used for calculating the voltage of each battery through a data value internally arranged in the analog-to-digital converter and the voltage condition of the electric load.

In one example, the switch tube is provided with a plurality of types, and the load current controlled by each type of switch tube is different in magnitude.

In one example, the controller is coupled to the decoder via an I/O interface.

In one example, the switching tube is a MOS tube, and the on-resistance of the MOS tube is in milliohm.

In one example, further comprising: and the electric load is connected with the corresponding battery through the plurality of switch tubes respectively.

In one example, the output pin of the decoder is larger than the input pin of the decoder, so that the controller controls more switching tubes through the decoder.

The embodiment of the application aims at the problems in the prior art, provides the battery pack capable of saving power consumption, can reduce extra battery power consumption, can switch among a plurality of batteries, and supplies power to electric equipment stably, reliably and effectively.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic diagram of a prior art battery-powered circuit configuration;

fig. 2 is a schematic diagram of a circuit structure of the battery pack according to the present invention;

fig. 3 is a schematic diagram of the voltage detection principle of the present invention.

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

Fig. 1 is a schematic diagram of a battery power supply circuit in the prior art, as shown in the figure, in the prior art, a diode is connected in series in a battery power supply loop, when an electrical load is powered on, because a voltage drop is generated at two ends when the diode is turned on, which is equivalent to that a resistor exists inside the diode, when a current flows through the diode, heat is generated, and the current is larger, the more heat is generated, and the electric quantity of the battery is lost partially in a heating manner instead of being completely consumed by the electrical load.

Aiming at the defects in the prior art, a battery power supply circuit is redesigned by using an MOS (Metal-Oxide-Semiconductor Field Effect Transistor) tube with an on-resistance of milliohm level as a switch, and the on-resistance of the used MOS tube is negligible and is equivalent to zero loss, so that the electric energy loss caused by the voltage drop of a diode is solved, the electric quantity of a battery is fully utilized by an electric load, and the service life of the battery is prolonged. The problem that the batteries cannot be switched is solved, seamless switching of a plurality of batteries is realized by setting a threshold value for judging, the requirement of an electric load on the total capacity of the batteries is met, the number of the batteries can be expanded at will, and the number of the batteries is only related to the number of control pins of a controller.

The utility model discloses an improvement of group battery is circuit structure's improvement mainly. Fig. 2 is a schematic diagram of a circuit structure of the battery pack according to the present invention; as shown in fig. 2, includes: the controller, the decoder, the switch tube and the battery pack are connected in the following manner: the battery pack comprises a plurality of batteries; the plurality of batteries are respectively connected with the corresponding switch tubes in series and used for controlling the on-off of the batteries through the switch tubes; and a switching tube is connected in series in each battery loop and is controlled by a controller to be switched on or off, so that seamless switching of the multiple batteries is realized. The input end of the controller is connected with each battery of the battery pack, the output end of the controller is connected with the input end of the decoder, and the output end of the decoder is connected with the plurality of switch tubes respectively, so that the controller controls the on-off of the corresponding switch tube through the decoder according to the voltage value of each battery.

The controller controls the switch tube through the decoder, so that the use amount of control pins of the controller can be greatly reduced. In some preferred embodiments of the present invention, the controller communicates with the decoder using an I/O interface, as shown in fig. 2, and communicates with a decoder through 3 control pins to control the input state of the decoder.

It can be understood that the decoder is a multiple-input multiple-output combinational logic circuit device, the decoder in the embodiment of the present invention may be a variable decoder, and the variable decoder is generally a device in which less input is changed into more output. As shown in fig. 2, 8 paths of control signals are generated by the decoder chip to control 8 MOS switches, so as to realize the power-on and power-off control of 8 batteries, and only one battery of 8 batteries is turned on.

According to the utility model discloses a specific embodiment, the device still includes: the voltage detection circuit is connected with the battery and is used for detecting the voltage of the battery; the controller is connected with the voltage detection circuit and used for enabling the controller to acquire the voltage of the battery. In some embodiments of the present invention, the voltage detection circuit is disposed on a circuit board of the battery switching device.

After the device is powered on for the first time, the voltage of all the batteries is subjected to polling detection. The method is switched to a battery with sufficient electric quantity for use, and automatically enters a dormant state after the reporting task is completed, so that the battery consumption is saved. And the subsequent time of activating the device by a clock circuit of the device at each time, re-detecting the voltage of the battery until all the voltages are detected, and selecting the battery with the highest voltage as the current battery. And restarting the next detection period, and continuously circulating until the battery is exhausted.

Fig. 3 is a schematic diagram of the voltage detection principle of the present invention, and the circuit structure is as shown in fig. 3, one end (interface a) of the controller (not shown in fig. 3) is connected to one end of the resistive divider 303, and the electrical load is connected to the other end of the resistive divider; the other end of the controller (B, C, D three control pins) is connected to one end of the decoder 301, and the other end of the decoder is connected to the switch tubes 302 respectively to control the on/off of the switch tubes.

Specifically, an analog-to-digital converter is arranged in the controller, an input end a of the controller is connected with the resistor voltage divider 303, the resistor voltage divider 303 is connected with an electric load end, an output end B, C, D of the controller is connected with an input end of the decoder 303, and output ends of the decoder 301 are respectively connected with the plurality of switch tubes 303, so that the controller controls the switch tubes to be switched on and off through the decoder.

The controller is internally provided with an analog-to-digital converter for converting an analog signal into a digital signal, and determines the corresponding voltage value of each battery according to the data value of the built-in analog-to-digital converter and the voltage condition of the electric load obtained through the resistor voltage divider.

In some other embodiments of the present invention, a voltage determination module is disposed on the controller, and a plurality of voltage thresholds are disposed on the voltage determination module, and the voltage thresholds are related to the voltage of the battery. Specifically, the voltage judging module on the controller acquires the voltage of the battery detected by the voltage detecting circuit, and compares the voltage with a preset voltage, for example, if the voltage of one battery is detected to be less than 2.7v, the battery is replaced through the switch tube, and the replaced battery is the section with the highest voltage value in the rest batteries. Preferably, a battery is rejected if the voltage of the battery is detected to be less than 2.7 v.

Those skilled in the art will appreciate that the present invention may also be implemented in hardware. For example, the voltage judging module is replaced by a comparator. The input of the comparator is connected to a voltage detection circuit to obtain an analog signal representative of the voltage of each cell and then compare the voltage signals of the plurality of cells. The output end of the comparator is connected with the controller and used for sending the output digital signal to the controller, the output digital signal contains a comparison result of the voltage of the battery, and the controller sends an opening and closing signal to the corresponding switch tube according to the comparison result.

According to the present invention, the switch tube in this embodiment can be a MOS tube, and it should be noted that, in order to avoid the loss of the battery capacity, the on-resistance of the MOS tube used in this embodiment is in milliohm.

In some preferred embodiments of the present invention, a plurality of types can be set in the circuit according to different functions, and the switch tube can determine the magnitude of the current flowing through the switch tube through the difference of the package structure of the switch tube, generally speaking, the current with the large package structure is relatively large. Based on the characteristic and the circuit structure of the embodiment, different types of switching tubes can be arranged according to the types of the electric loads, so that the reliability of the power supply equipment is improved, and power supply management is completed.

To sum up, the utility model discloses an embodiment has both reduced extra battery power loss, can switch over wantonly between multisection battery again, and through the voltage that detects the battery both ends, control is used or keeps apart relevant battery, reaches intelligent control, if the battery exists the overdischarge hidden danger, also accessible controller rejects the use in advance, and it is more reliable to use the electrical equipment. The electric quantity of the battery is saved by reducing the extra electric quantity loss of the battery, and the purpose of reducing the cost is also achieved by the using amount of the battery.

To sum up, the embodiment of the utility model provides an adopt the thinking of innovation, use new and technological means, improve to the electronic control mode by original mechanical system control mode, provide probably for remote control for follow-up upgrading. And the cost can be reduced, the problem that the mechanical structure has a gap is solved, and the working environment of the ship is better adapted.

The embodiments of the present invention are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment is mainly described as a difference from the other embodiments. In particular, as for the apparatus embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the application.

Claims (7)

1. A battery pack that saves power consumption, comprising: a controller, a resistor divider, a decoder, a plurality of switch tubes and a battery pack, wherein,

the battery pack comprises a plurality of batteries;

the plurality of batteries are respectively connected with the corresponding switch tubes in series and used for controlling the power on and power off of the batteries corresponding to the switch tubes through the switch tubes;

one end of the controller is connected with one end of the resistance voltage divider, and an electric load is connected with the other end of the resistance voltage divider;

the other end of the controller is connected with one end of the decoder, and the other end of the decoder is respectively connected with the switch tubes to control the switch tubes to be opened and closed.

2. The battery pack capable of saving power consumption as claimed in claim 1, wherein the controller is built in with an analog-to-digital converter, and an input terminal of the analog-to-digital converter is connected to the resistor divider for calculating the voltage of each of the plurality of batteries by a data value built in the analog-to-digital converter and a voltage condition of the electric load.

3. The battery pack capable of saving power consumption as claimed in claim 1, wherein the switching tube is provided with a plurality of types, and each type of the switching tube controls a load current with a different magnitude.

4. The battery pack capable of saving power consumption according to claim 1, wherein the controller is connected to the decoder via an I/O interface.

5. The battery pack capable of saving power consumption as claimed in claim 1, wherein the switching transistor is a MOS transistor, and the on-resistance of the MOS transistor is in milliohm.

6. The power consumption saving battery pack according to claim 1, further comprising: and the electric load is connected with the corresponding battery through the plurality of switch tubes respectively.

7. The power consumption saving battery pack according to claim 1, wherein the number of output pins of the decoder is larger than the number of input pins of the decoder.

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