CN218920003U

CN218920003U - Charging-discharging and residual electricity detection management system and rechargeable battery

Info

Publication number: CN218920003U
Application number: CN202221615037.1U
Authority: CN
Inventors: 李建梁
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-06
Filing date: 2022-06-27
Publication date: 2023-04-25
Anticipated expiration: 2032-06-27
Also published as: TWM633106U

Abstract

The charge-discharge and residual electricity detection management system comprises a charge-discharge circuit and a residual electricity detection circuit, wherein the charge-discharge circuit comprises a charge circuit, a discharge circuit and a battery management loop; the charging circuit comprises a synchronous exchange type charging loop and a voltage reverse protection loop which are connected in series; the discharging circuit comprises a DC-DC voltage stabilizing loop and a dynamic load loop which are connected in series; the residual electricity detection circuit comprises an electric quantity detection circuit, an LED display circuit and an electric quantity detection trigger circuit which are connected in series; the rechargeable battery comprises the charging and discharging and residual electricity detection management system, and comprises a battery core, a control board, an insulating lower shell, an insulating upper cover, a negative electrode metal lug, a metal negative electrode shell, a battery core insulating sheet, a battery anode and an electric quantity detection triggering structure.

Description

Charging-discharging and residual electricity detection management system and rechargeable battery

Technical Field

The present utility model relates to the field of circuit management of batteries, and in particular, to a system for detecting and managing charge and discharge and residual electricity and a rechargeable battery.

Background

With the high-speed development of technology, devices using batteries as main power supplies are becoming more popular, and in order to meet the requirement of long-time use, multiple batteries are required to be connected in series and parallel, so that the battery charging and discharging management is more important, the efficiency is improved, the protection mechanism is more important, the conventional manganese zinc, alkaline and other disposable batteries cannot be properly managed at all, the non-reusability of the conventional manganese zinc, alkaline and other disposable batteries causes great resource waste and environmental pollution, and the secondary nickel-hydrogen nickel-cadmium rechargeable battery is low in electric quantity density, slow in charging and memory effect, a special charging device is required, and the problem of heavy metal pollution source recovery cannot be followed. The current lithium battery is the best choice and has no problems, but because the lithium battery has high electric activity and high density, the charge and discharge management and protection are very important.

The existing charge-discharge circuit of the lithium battery has a plurality of problems, such as different output voltages of each battery when a plurality of batteries are connected in series and parallel, different supply capacities of each battery when a load exists, and voltage difference can be generated among the batteries, so that the power supply of the batteries is unbalanced, the capacity of the batteries is reduced, and the cruising ability is poor; the charging efficiency is low, the electric quantity of the battery core can not be measured when the battery is used, and the problems indicate that the energy utilization of the existing battery brings inconvenience.

Disclosure of Invention

The utility model aims to provide a charge-discharge and residual electricity detection management system and a rechargeable battery, and aims to solve the technical problems.

In order to achieve the above purpose, the present utility model is realized by the following technical scheme:

the charge-discharge and residual electricity detection management system comprises a charge-discharge circuit and a residual electricity detection circuit, wherein the charge-discharge circuit comprises a charge circuit, a discharge circuit and a battery management loop, and the battery management loop is used for switching connection to the charge circuit and the discharge circuit;

the charging circuit comprises a synchronous exchange type charging loop and a voltage reverse protection loop which are connected in series;

the discharging circuit comprises a DC-DC voltage stabilizing loop and a dynamic load loop which are connected in series;

the residual electricity detection circuit comprises an electric quantity detection circuit, an LED display circuit and an electric quantity detection trigger circuit which are connected in series.

Preferably, the electric quantity detection trigger circuit is connected with a touch-press micro switch, and the touch-press micro switch is used for switching on the electric quantity detection trigger circuit when sensing external pressing force.

Preferably, the electric quantity detection trigger circuit is connected with a magnetic field induction IC, and the magnetic field induction IC is used for switching on the electric quantity detection trigger circuit when the magnetic flux changes.

Preferably, the electric quantity detection trigger circuit is connected with a touch switch IC, and when the touch switch IC senses a touch point of a hand, the touch switch IC senses a change of capacitance to switch on the electric quantity detection trigger circuit by a trigger signal.

Preferably, the electric quantity detection trigger circuit is connected with a gravity sensor, and the gravity sensor is used for sensing displacement change to switch on the electric quantity detection trigger circuit when the battery is vibrated or swayed.

The utility model also provides a rechargeable battery, which comprises the charge-discharge and residual electricity detection management system.

Preferably, the battery pack also comprises a battery cell and a control board, wherein the control board is arranged in the insulating lower shell in a clamping mode, the insulating lower shell is sleeved at the upper end part of the battery cell, negative electrode lugs are arranged on two sides of the control board, one end of each negative electrode lug is connected with the control board, the other end of each negative electrode lug is wound on the outer side of the insulating lower shell, and the upper end face of the control board is connected with a battery anode and an electric quantity detection triggering structure.

Preferably, a metal negative electrode shell is sleeved outside the insulating lower shell, the upper part of the metal negative electrode shell is sleeved on the insulating lower shell, and the lower part of the metal negative electrode shell is sleeved on the upper part of the battery cell;

the upper end face of the insulating lower shell is also provided with an insulating upper cover, and the battery anode and the electric quantity detection triggering structure pass through the insulating upper cover and are arranged outside the insulating upper cover;

the upper end face of the control panel is also provided with an LED display lamp, and the LED display lamp is electrically connected with the control panel and is positioned between the control panel and the insulating upper cover;

the rechargeable battery also comprises a battery cell insulating sheet, wherein the battery cell insulating sheet is positioned between the insulating lower shell and the upper end face of the battery cell.

Preferably, one end of the DC-DC voltage stabilizing loop far away from the dynamic load loop is connected to the anode of the battery;

one end, far away from the voltage reverse protection circuit, of the synchronous exchange type charging circuit is connected to the positive electrode of the battery;

the ground point of the battery management loop is connected with the negative electrode of the battery.

The charge-discharge and residual electricity detection management system and the rechargeable battery have the following beneficial effects:

1. the charging and discharging and residual electricity detection management system and the rechargeable battery are provided with the charging circuit, the discharging circuit and the battery management circuit, so that the rechargeable battery can be used for secondary charging, and further waste of resources can be avoided;

2. the charging and discharging and residual electricity detection management system and the rechargeable battery provided by the utility model have the advantages that the discharging circuit comprises the DC-DC voltage stabilizing circuit and the dynamic load circuit, the discharging voltage or the discharging current can be effectively detected, and the discharging voltage or the discharging current is adjusted through the DC-DC voltage stabilizing circuit, so that the output of the battery is stable, the power supply of the battery is balanced, the battery capacity can be effectively maintained, and the cruising ability of the battery is maintained;

3. the charging circuit comprises a synchronous exchange type charging loop and a voltage reverse protection circuit which are connected in series, so that the charging efficiency of the rechargeable battery can be effectively maintained;

4. according to the charge-discharge and residual electricity detection management system and the rechargeable battery, the charge-discharge management circuit is also connected with the electric quantity detection trigger circuit in parallel, and the gravity sensor, the touch switch IC, the magnetic field induction IC and the electric quantity detection trigger structure are connected to the electric quantity detection trigger circuit.

Drawings

FIG. 1 is a schematic diagram showing the overall connection of the charge-discharge and residual electricity detection management system of the present utility model;

FIG. 2 is a schematic diagram of a DC-DC voltage regulation loop and a dynamic load loop;

FIG. 3 is a schematic circuit diagram of an electrical quantity detection trigger circuit connected with a touch micro switch, a touch IC, a gravity sensor and a magnetic field sensor;

FIG. 4A is a structural exploded view of the rechargeable battery of the present utility model;

FIG. 4B is a schematic diagram of the appearance of a complete battery;

FIG. 4C is an enlarged view of a portion of the appearance of a complete battery;

FIG. 4D is a schematic illustration of the metal negative housing removed;

FIG. 4E is an enlarged view of a portion of the metal negative housing removed;

FIG. 4F is a schematic view of the insulating top cover removed;

fig. 4G is a partial enlarged view after removing the insulating upper cover.

Description of the embodiments

In order to make the technical solution of the present utility model better understood by those skilled in the art, the following further details of the present utility model will be described with reference to examples and drawings.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 4A to 4G, a rechargeable battery includes a battery core 100, a control board 140, an insulating lower case 120, an insulating upper cover 110, a negative metal tab 150, a metal negative electrode casing 130, a battery core insulating sheet 170, a battery anode 180 and a power detection triggering structure 160, wherein the bottom surface of the insulating lower case 120 is sleeved at the upper end of the battery core 100, the control board 140 is clamped at the upper part of the insulating lower case 120, both sides of the control board 140 are connected with the negative metal tab 150, one end of the negative metal tab 150 is connected with the control board 140, and the other end is wound outside the insulating lower case 120; the battery anode 180 and the electric quantity detection triggering structure 160 are arranged on the upper end surface of the control board 140 and are connected with the upper end surface of the control board 140, the insulation upper cover 110 is clamped on the upper end surface of the insulation lower shell 120, the battery anode 180 and the electric quantity detection triggering structure 160 pass through the insulation upper cover 110 to be arranged outside, the control board 140 is also provided with an LED display lamp, the LED display lamp is electrically connected with the control board 140, the LED display lamp is positioned between the control board 140 and the insulation upper cover 110, and the insulation upper cover 110 is made of transparent or semitransparent materials; the battery cell insulating sheet 170 is disposed on the bottom surface of the insulating lower case 120 and located between the insulating lower case 120 and the upper end surface of the battery cell 100; the upper part of the metal negative electrode shell 130 is sleeved outside the insulating lower shell 120, and the lower part of the metal negative electrode shell is sleeved on the upper part of the battery cell 100, so that the negative electrode metal tab 150 is positioned between the metal negative electrode shell 130 and the insulating lower shell 120 and is in contact with the metal negative electrode shell 130.

As shown in fig. 1 and fig. 2, a charge-discharge and residual electricity detection management system includes a charge-discharge circuit and a residual electricity detection circuit, the charge-discharge circuit includes a charge circuit, a discharge circuit and a battery management circuit 800, the battery management circuit 800 is used for switching connection to the charge circuit and the discharge circuit; the charging circuit comprises a synchronous exchange type charging circuit 400 and a voltage reverse protection circuit 500 which are connected in series, wherein one end of the voltage reverse protection circuit 500 is connected with a charging interface of the battery management circuit 800, the other end of the voltage reverse protection circuit is connected with one end of the synchronous exchange type charging circuit 400 in series, and the other end of the synchronous exchange type charging circuit 400 is connected with the battery anode 180; the discharging circuit comprises a DC-DC voltage stabilizing loop 600 and a dynamic load loop 700 which are connected in series, one end of the dynamic load loop 700 is connected with a discharging interface of the battery management loop 800, the other end of the dynamic load loop is connected with one end of the DC-DC voltage stabilizing loop 600 in series, and the other end of the DC-DC voltage stabilizing loop 600 is connected with the positive electrode 180 of the battery; the residual electricity detection circuit comprises an electric quantity detection and LED display circuit 300 and an electric quantity detection trigger circuit 200 which are connected in series, one end of the electric quantity detection trigger circuit 200 is connected with the electric quantity detection trigger structure 160, the other end is connected with one interface of the electric quantity detection trigger circuit 200, one interface of the electric quantity detection trigger circuit 200 is connected with the battery anode 180, and one interface of the electric quantity detection trigger circuit is connected with the battery cathode; the ground point of the battery management circuit 800 is connected to the battery negative electrode.

It should be noted that: each dry battery is provided with a DC-DC voltage stabilizing loop 600 and a dynamic load loop 700, wherein the dynamic load loop 700 is configured to detect discharge voltage or discharge current and feed back the discharge voltage or discharge current to the DC-DC voltage stabilizing loop 600, and the DC-DC voltage stabilizing loop 600 adjusts the output voltage and current of the battery according to the change of the feedback voltage or current; the power detection and LED display circuit 300 includes a circuit detection circuit and an LED display circuit, the power detection trigger circuit is configured to start measuring the power of the battery when a set condition is reached, and the LED display circuit is configured to feed back the voltage value according to the power detection trigger circuit, so as to light up different numbers of LED display lamps or to indicate the amount of the remaining power of the battery with the change of the flickering of the LED display lamps.

As shown in fig. 3, the electric quantity detection and LED display circuit 300 includes a circuit detection circuit and an LED display circuit, wherein the electric quantity detection trigger circuit is configured to start measuring the electric quantity of the battery when a set condition is reached, and as shown in fig. 3, a gravity sensor is connected in series to the electric quantity detection trigger circuit, and the electric quantity detection trigger circuit is configured to be turned on when a set acceleration is sensed. When the charge and discharge management circuit of the embodiment is integrated with the battery, the gravity sensor touches the power generation amount detection trigger circuit to measure the voltage value of the battery cell 100 and starts the LED display circuit to light different numbers of LEDs or to flash the LEDs according to the voltage value to represent the remaining power of the battery.

In another embodiment, as shown in fig. 3, the electric quantity detection trigger circuit is connected in series with a touch pressure micro switch circuit, and is configured to switch on the electric quantity detection trigger circuit and start the LED display circuit when sensing that the micro switch is touched by external touch pressure.

In another embodiment, as shown in fig. 3, a touch IC sensing detection circuit is connected in series to the power detection trigger circuit, and is configured to sense that a touch sensing point exposed out of the battery is touched, and then turn on the power detection trigger circuit, and start the LED display circuit.

In another embodiment, as shown in fig. 3, a magnetic field sensing IC circuit is connected in series to the power detection trigger circuit, and configured to sense an external magnetic force change, so as to switch on the power detection trigger circuit and start the LED display circuit.

It should be noted that: the charge-discharge battery in the implementation adopts the charge-discharge management circuit, realizes charge-discharge management of a single path, integrates charge, discharge and protection of the battery into a battery structure, so that the battery can be charged only by adding direct current DC5V voltage to the positive electrode and the negative electrode, USB5V is the most convenient charging power supply, a special circuit or a charging device of a specific mechanism is not needed to charge the battery, and a USB interface is visible everywhere.

The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the present utility model in any way; those skilled in the art will readily appreciate that the present utility model may be implemented as shown in the drawings and described above; however, those skilled in the art should appreciate that many modifications, adaptations, and variations of the present utility model can be made without departing from the scope of the present utility model as set forth in the above-described aspects; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present utility model still fall within the scope of the present utility model.

Claims

1. The utility model provides a charge-discharge and surplus electricity detection management system, is including charge-discharge circuit and surplus electricity detection circuit, its characterized in that: the charging and discharging circuit comprises a charging circuit, a discharging circuit and a battery management loop, wherein the battery management loop is used for switching connection to the charging circuit and the discharging circuit;

2. The charge-discharge and residual electricity detection and management system according to claim 1, wherein: the electric quantity detection trigger circuit is connected with a touch-press micro switch, and the touch-press micro switch is used for switching on the electric quantity detection trigger circuit when sensing external pressing force.

3. The charge-discharge and residual electricity detection and management system according to claim 1, wherein: the electric quantity detection trigger circuit is connected with a magnetic field induction IC, and the magnetic field induction IC is used for switching on the electric quantity detection trigger circuit when magnetic flux changes.

4. The charge-discharge and residual electricity detection and management system according to claim 1, wherein: the electric quantity detection trigger circuit is connected with a touch switch IC, and when the touch switch IC senses a touch point of a hand, the touch switch IC senses a change of capacitance to switch on a trigger signal to switch on the electric quantity detection trigger circuit.

5. The charge-discharge and residual electricity detection and management system according to claim 1, wherein: the electric quantity detection trigger circuit is connected with a gravity sensor, and the gravity sensor is used for sensing that the gravity sensor senses displacement change to be communicated with the electric quantity detection trigger circuit when the battery is vibrated or shaken.

6. A rechargeable battery, characterized in that: comprising the charge-discharge and residual electricity detection and management system according to any one of claims 1 to 5.

7. The rechargeable battery of claim 6, wherein: still including electric core and control panel, the control panel card is established in insulating inferior valve, the upper end at electric core is established to the shell cover under the insulation, the control panel both sides are equipped with the negative pole utmost point ear, the one end and the control panel of negative pole utmost point ear are connected, and the other end is around establishing in insulating inferior valve outside, the up end of control panel is connected with battery positive pole and electric quantity and detects trigger structure.

8. The rechargeable battery of claim 7, wherein: the outer side of the insulating lower shell is also sleeved with a metal negative electrode shell, the upper part of the metal negative electrode shell is sleeved on the insulating lower shell, and the lower part of the metal negative electrode shell is sleeved on the upper part of the battery cell;

9. The rechargeable battery of claim 8, wherein: one end, far away from the dynamic load loop, of the DC-DC voltage stabilizing loop is connected to the anode of the battery;