Battery supporting multiple charging voltages and terminal equipment

Abstract

The utility model relates to the technical field of batteries, and discloses a battery and terminal equipment supporting various charging voltages, which comprises a voltage-multiplying charging port, a conventional voltage charging and discharging port, a step-down pump module, a battery cell and a battery protection module, two ends of the voltage-multiplying charging port are connected with two ends of the battery cell; two ends of the step-down pump module are connected with two ends of the voltage-multiplying charging port and two ends of the battery cell; two ends of the conventional voltage charge-discharge port are connected with two ends of the battery cell; the first end of the battery protection module is connected with the first ends of the battery cell, the voltage-multiplying charging port and the conventional voltage charging and discharging port, the second end is connected with the second end of the battery cell, and the third end is connected with the second ends of the voltage-multiplying charging port and the conventional voltage charging and discharging port. According to the utility model, voltage-multiplying current can be reduced to conventional voltage current and then input to the battery cell, or the conventional voltage current is directly input to the battery cell, rapid charging under various voltages is supported, the use requirements of users are met, severe heating of the battery during rapid charging is avoided, and the use experience of the users is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a battery supporting multiple charging voltages and a terminal device. Background Art

[0002] Battery heat generation is primarily related to the resistance of the device and the current flowing through it. For example, in charging applications, because existing designs require a low charging voltage, increasing the current is necessary to improve fast-charging power, leading to significant battery heating during fast charging. Furthermore, existing fast-charging-capable batteries have a narrow voltage adjustment range and limited options, hindering compatibility between battery products and host devices. Utility Model Content

[0003] In view of this, the present invention provides a battery and a terminal device that support multiple charging voltages to solve the problem that existing batteries generate severe heat during fast charging and do not support multiple voltages.

[0004] In a first aspect, the utility model provides a battery that supports multiple charging voltages, including: a voltage-doubling charging port, a conventional voltage charging and discharging port, a step-down pump module, a battery cell, and a battery protection module;

[0005] The first end of the voltage-doubling charging port is connected to the first end of the battery cell, and the second end is connected to the second end of the battery cell;

[0006] The first end of the step-down pump module is connected to the first end of the voltage-doubling charging port and the first end of the battery cell, and the second end is connected to the second end of the voltage-doubling charging port and the second end of the battery cell;

[0007] The first end of the conventional voltage charge and discharge port is connected to the first end of the battery cell, and the second end is connected to the second end of the battery cell;

[0008] The first end of the battery protection module is connected to the first end of the battery cell, the first end of the double-voltage charging port and the first end of the conventional voltage charging and discharging port, the second end is connected to the second end of the battery cell, and the third end is connected to the second end of the double-voltage charging port and the second end of the conventional voltage charging and discharging port.

[0009] The battery provided by the embodiment of the present invention supports multiple charging voltages and is connected to the battery cell via a voltage doubling charging port and a step-down pump module, and is connected to the battery cell via a conventional voltage charge and discharge port. By providing a voltage doubling charging port and a conventional voltage charging port, the present invention can step down the input voltage doubling current to a conventional voltage current and then input it into the battery cell, or directly input the input conventional voltage current into the battery cell, supporting fast charging at multiple voltages to meet user needs, and avoiding severe heating of the battery during fast charging, thereby improving the user experience. At the same time, the battery protection module shuts down the battery's charge and discharge when charging and discharging are abnormal, preventing abnormal use of the battery cell and protecting the battery.

[0010] In an optional embodiment, the battery protection module includes: a battery first-level protection unit and a battery second-level protection unit; the first end of the battery first-level protection unit is connected to the first end of the battery cell, the first end of the double-voltage charging port and the first end of the conventional voltage charging and discharging port, the second end is connected to the second end of the battery cell, and the third end is connected to the second end of the battery second-level protection unit; the first end of the battery second-level protection unit is connected to the first end of the battery first-level protection unit, the first end of the battery cell, the first end of the double-voltage charging port and the first end of the conventional voltage charging and discharging port, the second end is connected to the third end of the battery first-level protection unit, and the third end is connected to the second end of the double-voltage charging port and the second end of the conventional voltage charging and discharging port.

[0011] The utility model provides two-stage circuit protection units, so that when the first-stage protection unit is abnormal, the second-stage protection unit can perform battery protection action, thereby improving the reliability of battery protection.

[0012] In an optional embodiment, the battery primary protection unit and the battery secondary protection unit both include: a battery protection control subunit and a battery input-output switch subunit; the voltage acquisition end of the battery protection control subunit is connected to the first end of the battery cell, the current acquisition end is connected to the second end of the battery cell, the charging control end is connected to the input switch of the battery input-output switch subunit, and the discharging control end is connected to the output switch of the battery input-output switch subunit.

[0013] The utility model can measure the voltage and current of the circuit through the battery protection control subunit and the battery input and output switch subunit in the protection unit, and control the switch to shut down the charging and discharging of the battery cell when charging and discharging are abnormal, thereby preventing the battery cell from being damaged.

[0014] In an optional implementation, the input switch and the output switch are MOS switches.

[0015] The utility model selects a MOS switch as an input or output switch for charging and discharging a battery, and can realize high-speed switch control.

[0016] In an optional embodiment, a loop current collection subunit is further provided between the current collection terminal of the battery protection control subunit and the second terminal of the battery cell.

[0017] The utility model can judge whether overcharge or overdischarge occurs during discharge by collecting the loop current, thereby protecting the battery cell.

[0018] In an optional implementation, the battery protection control subunit further includes an abnormality release detection terminal connected to the ground terminal.

[0019] The utility model can detect whether the current charging or discharging anomaly has been eliminated through the abnormality elimination detection terminal, so as to continue charging or discharging to meet the user's use needs.

[0020] In an optional implementation, the step-down pump module includes: a preset number of capacitors connected in series.

[0021] The utility model can reduce the voltage of the doubled voltage current through capacitor energy storage, thereby ensuring that the battery cell is charged with conventional voltage and current, preventing overheating during charging, reducing damage to the battery cell caused by fast charging, and improving user experience.

[0022] In an optional implementation, the voltage-doubling charging port supports input of 2 times the voltage and current or 4 times the voltage and current.

[0023] The utility model can meet the fast charging requirements of different charging voltages and meet the needs of users by providing a voltage-doubling charging port that supports multiple voltage-doubling currents.

[0024] In a second aspect, the present invention provides a terminal device, comprising a battery supporting multiple charging voltages according to the first aspect or any corresponding embodiment thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a structural block diagram of a battery supporting multiple charging voltages according to an embodiment of the present utility model;

[0027] Figure 2 This is a block diagram of a specific structure of a battery supporting multiple charging voltages according to an embodiment of the present utility model;

[0028] Figure 34 is a structural block diagram of another battery supporting multiple charging voltages according to an embodiment of the present invention.

[0029] Description of the drawings:

[0030] 10. Double-voltage charging port; 20. Conventional voltage charging and discharging port; 30. Step-down pump module; 31. Conversion capacitor; 32. Conversion capacitor; 40. Battery cell; 50. Battery protection module; 51. Battery primary protection unit; 511. First battery protection control subunit; 512. First battery input and output switch subunit; 513. Loop current acquisition subunit; 52. Battery secondary protection unit; 521. Second battery protection control subunit; 522. Second battery input and output switch subunit. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0032] The embodiments of the present invention are applicable to adjusting the battery circuit of a terminal device to support scenarios with multiple charging voltages. According to an embodiment of the present invention, a battery embodiment that supports multiple charging voltages is provided. It should be noted that, as used below, the term "module" can implement a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and contemplated.

[0033] In this embodiment, a battery supporting multiple charging voltages is provided, which can be applied to mobile terminals such as mobile phones, tablet computers, etc. Figure 1 This is a structural block diagram of a battery supporting multiple charging voltages according to an embodiment of the present invention. Figure 1 As shown, the battery includes: a double voltage charging port 10, a normal voltage charging and discharging port 20, a step-down pump module 30, a battery cell 40 and a battery protection module 50;

[0034] The first end of the double-voltage charging port 10 is connected to the first end of the battery cell 40, and the second end is connected to the second end of the battery cell 40; the first end of the step-down pump module 30 is connected to the first end of the double-voltage charging port 10 and the first end of the battery cell 40, and the second end is connected to the second end of the double-voltage charging port 10 and the second end of the battery cell 40; the first end of the conventional voltage charge and discharge port 20 is connected to the first end of the battery cell 40, and the second end is connected to the second end of the battery cell 40; the first end of the battery protection module 50 is connected to the first end of the battery cell 40, the first end of the double-voltage charging port 10 and the first end of the conventional voltage charge and discharge port 20, the second end is connected to the second end of the battery cell 40, and the third end is connected to the second end of the double-voltage charging port 10 and the second end of the conventional voltage charge and discharge port 20.

[0035] Specifically, in the embodiment of the present invention, taking the mobile phone battery as an example, a general mobile phone provides a charging port for the user, and the mobile phone can be connected to both a fast charger and a conventional charger through this charging port. When connected to a fast charger, a double voltage current can be input into the battery for charging, such as 2 times the voltage current (high voltage 10V current) or 4 times the voltage current (high voltage 20V current), but not limited to this; when connected to a conventional charger, a conventional voltage current (5V current) can be input into the battery for charging. In order to support both fast charging and conventional charging, the embodiment of the present invention sets two ports for the battery, wherein the double voltage charging port 10 supports the input of double voltage current, and the conventional voltage charge and discharge port 20 supports the input of conventional voltage current, and can also output the electrical energy stored in the battery cell 40 of the battery to the mobile phone motherboard in the form of conventional voltage current to power the mobile phone, and the mobile phone motherboard recognizes the input current and determines whether to input it into the double voltage charging port 10 or the conventional voltage charge and discharge port 20. At the same time, the battery protection module 50 is located between the battery input and output terminals and the battery cell 40, and is used to monitor the voltage and current of the normal voltage and current of the input battery cell or the output battery cell, and to shut down the input or output of the normal voltage and current when there is a charging or discharging abnormality.

[0036] In some optional embodiments, such as Figure 1 As shown, the first end of the voltage-doubling charging port 10 is connected to the first end (i.e., the positive electrode) of the battery cell 40, and the second end is connected to the second end (i.e., the negative electrode) of the battery cell 40. When the voltage-doubling charging port 10 is connected to an external voltage-doubling charger, the first end of the voltage-doubling charging port 10 is connected to the positive electrode of the external voltage-doubling charger, and the second end is connected to the negative electrode of the external voltage-doubling charger, thereby inputting the voltage-doubling current of the external voltage-doubling charger into the battery.

[0037] In some optional implementations, the present invention ensures that the input voltage-doubled current can charge the battery cell 40 normally, such as Figure 1As shown, the voltage-doubled current input into the voltage-doubled charging port 10 is stepped down to a regular voltage and current through the step-down pump module 30, and then input into the battery cell 40. The battery cell 40 stores electrical energy based on the regular voltage and current. For example, 2 times the 10V voltage and current is stepped down to a 5V voltage and current, and the battery cell 40 is charged by the 5V voltage and current, but this is not limited to this.

[0038] In some optional implementations, the buck pump module 30 of the present utility model embodiment is composed of a preset number of capacitors connected in series, and realizes the voltage reduction of the 10 times voltage current of the double voltage charging port through capacitor energy storage. Figure 2 As shown, the step-down pump module 30 is composed of two conversion capacitors (31 and 32) connected in series. However, the actual working principle of the step-down pump module is relatively complicated, but it is a conventional technical means in this field and will not be described here.

[0039] In some optional embodiments, such as Figure 1 As shown, the first end of the conventional voltage charge and discharge port 20 is connected to the first end (i.e., the positive electrode) of the battery cell 40, and the second end is connected to the second end (i.e., the negative electrode) of the battery cell 40, and when the conventional voltage charge and discharge port is connected to an external conventional voltage charger, the first end of the conventional voltage charge and discharge port is connected to the positive electrode of the external conventional voltage charger, and the second end is connected to the negative electrode of the external conventional voltage charger, so that the conventional voltage current of the external conventional voltage charger is directly input into the battery cell 40, and the battery cell 40 stores electrical energy based on the conventional voltage current, for example, directly inputting 5V voltage and current into the battery cell 40 for charging.

[0040] In some optional embodiments, the conventional voltage charge and discharge port 20 of the mobile phone battery of the embodiment of the present invention also supports powering the battery, that is, the electrical energy stored in the battery cell 40 is released by the negative electrode of the battery cell 40 and output to the mobile phone motherboard through the conventional voltage charge and discharge port 20. At this time, the first end of the conventional voltage charge and discharge port 20 is connected to the positive electrode of the mobile phone motherboard, and the second end is connected to the negative electrode of the mobile phone motherboard. The double voltage charging port 10, the conventional voltage charge and discharge port 20 and the step-down pump module 30 of the embodiment of the present invention collectively constitute the input and output ends of the battery, which are used to charge the battery cell at 1 times, 2 times or 4 times the charging voltage, or to power the mobile phone motherboard externally.

[0041] The battery supporting multiple charging voltages provided by the embodiment of the present invention is connected to the battery cell via a voltage doubling charging port and a step-down pump module, and is connected to the battery cell via a conventional voltage charge and discharge port. By providing a voltage doubling charging port and a conventional voltage charging port, the present invention can step down the input voltage doubling current to a conventional voltage current and then input it into the battery cell, or directly input the input conventional voltage current into the battery cell, supporting fast charging at multiple voltages, providing the terminal device charging circuit with more design options, improving battery charging efficiency, meeting user needs, and avoiding severe heating of the battery during fast charging, thereby improving the user experience. At the same time, the battery protection module shuts down the battery's charging and discharging when charging and discharging are abnormal, preventing abnormal use of the battery cell and protecting the battery.

[0042] In this embodiment, a battery supporting multiple charging voltages is provided, which can be applied to mobile terminals such as mobile phones, tablet computers, etc. Figure 3 This is a structural block diagram of a battery supporting multiple charging voltages according to an embodiment of the present invention. Figure 3 As shown, the battery includes: a double voltage charging port 10, a normal voltage charging and discharging port 20, a step-down pump module 30, a battery cell 40 and a battery protection module 50;

[0043] The first end of the double-voltage charging port 10 is connected to the first end of the battery cell 40, and the second end is connected to the second end of the battery cell 40; the first end of the step-down pump module 30 is connected to the first end of the double-voltage charging port 10 and the first end of the battery cell 40, and the second end is connected to the second end of the double-voltage charging port 10 and the second end of the battery cell 40; the first end of the conventional voltage charge and discharge port 20 is connected to the first end of the battery cell 40, and the second end is connected to the second end of the battery cell 40; the first end of the battery protection module 50 is connected to the first end of the battery cell 40, the first end of the double-voltage charging port 10 and the first end of the conventional voltage charge and discharge port 20, the second end is connected to the second end of the battery cell 40, and the third end is connected to the second end of the double-voltage charging port 10 and the second end of the conventional voltage charge and discharge port 20.

[0044] Specifically, in the embodiment of the present utility model, Figure 3 As shown, the battery protection module 50 of the embodiment of the present invention includes a battery primary protection unit 51 and a battery secondary protection unit 52. The two battery protection units have the same structure, that is, the battery primary protection unit 51 includes a first battery protection control subunit 511 and a first battery input-output switch subunit 512, and the battery secondary protection unit 52 includes a second battery protection control subunit 521 and a second battery input-output switch subunit 522.

[0045] In some optional embodiments, the first end of the primary battery protection unit 51 in the embodiment of the present invention is the voltage acquisition end of the first battery protection control subunit 511, which is connected to the first end of the battery cell 40, the first end of the double-voltage charging port 10, and the first end of the conventional voltage charging and discharging port 20. The second end of the primary battery protection unit 51 is the first end of the first battery input / output switch subunit 512, which is connected to the second end of the battery cell 40 via the loop current acquisition subunit 513. At the same time, the second end of the battery cell 40 and the current acquisition end of the first battery protection control subunit 511 are connected via the loop current acquisition subunit 513. The third end of the primary battery protection unit 51 is the second end of the first battery input / output switch subunit 512, which is connected to the second end of the secondary battery protection unit 52. At the same time, the charging control end of the first battery protection control subunit 511 is connected to the input switch of the first battery input / output switch subunit 512, and the discharging control end is connected to the output switch of the first battery input / output switch subunit 512. The first battery protection control subunit 511 also includes an abnormality release detection end connected to the ground terminal for detecting whether the charging and discharging abnormality has been eliminated.

[0046] In some optional embodiments, the first end of the battery secondary protection unit 52 in the embodiment of the present invention is the voltage collection end of the second battery protection control subunit 521, which is connected to the first end of the battery primary protection unit 51, the first end of the battery cell 40, the first end of the double-voltage charging port 10 and the first end of the conventional voltage charging and discharging port 20; the second end of the battery secondary protection unit 52 is the first end of the second battery input and output switch subunit 522, which is connected to the third end of the battery primary protection unit 51, and is connected to the second end of the battery cell 40 through the loop current collection subunit 513, and the second end of the battery cell 40 and the current collection end of the second battery protection control subunit 521 are connected through the loop current collection subunit 513; the third end of the battery secondary protection unit 52 is the second end of the second battery input and output switch subunit 522, which is connected to the second end of the double-voltage charging port 10 and the second end of the conventional voltage charging and discharging port 20. At the same time, the charging control terminal of the second battery protection control subunit 521 is connected to the input switch of the second battery input / output switch subunit 522, and the discharging control terminal is connected to the output switch of the second battery input / output switch subunit 522. The second battery protection control subunit 521 also includes an abnormality clearance detection terminal connected to the ground terminal for detecting whether the charging and discharging abnormalities have been resolved.

[0047] In some optional embodiments, during the charging process, the conventional voltage and current pass through the battery secondary protection unit 52 from the input port to the battery primary protection unit 51 to charge the battery cell. During the discharging process, the conventional voltage and current pass through the battery primary protection unit 51 from the negative electrode of the battery cell to the battery secondary protection unit 52 and then discharge outward through the port. However, the battery primary protection unit 51 works first, and when the battery primary protection unit 51 fails, the battery secondary protection unit 52 starts the battery protection action.

[0048] The battery provided by the embodiment of the present invention supports multiple charging voltages and is connected to the battery cell via a voltage-doubling charging port and a step-down pump module, and is connected to the battery cell via a conventional voltage charge and discharge port. By providing a voltage-doubling charging port and a conventional voltage charging port, the present invention can step down the input voltage-doubling current to a conventional voltage current before inputting it into the battery cell, or directly input the input conventional voltage current into the battery cell. This supports fast charging at multiple voltages, meets user needs, and avoids severe heating of the battery during fast charging, thereby improving the user experience.

[0049] The present invention also provides a terminal device, including Figure 1 or Figure 3 The batteries shown support multiple charging voltages.

[0050] Specifically, in an embodiment of the present invention, a battery supporting multiple charging voltages is deployed within a terminal device such as a mobile phone or computer. The double-voltage charging port and the conventional voltage charging and discharging port are unified and extended to form the mobile phone's single charging port, allowing the charging port's input current to be fed into the battery cells through the double-voltage charging port and the conventional voltage charging and discharging port for energy storage. Furthermore, the battery's conventional voltage charging and discharging port is connected to the terminal device's motherboard to provide power to the terminal device, releasing the stored energy in the battery cells through the conventional voltage charging and discharging port.

[0051] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A battery supporting multiple charging voltages, characterized in that: include: Double voltage charging port, conventional voltage charging and discharging port, step-down pump module, battery cell and battery protection module; The first end of the voltage-doubling charging port is connected to the first end of the battery cell, and the second end is connected to the second end of the battery cell; The first end of the step-down pump module is connected to the first end of the voltage-doubling charging port and the first end of the battery cell, and the second end is connected to the second end of the voltage-doubling charging port and the second end of the battery cell; The first end of the conventional voltage charge and discharge port is connected to the first end of the battery cell, and the second end is connected to the second end of the battery cell; The first end of the battery protection module is connected to the first end of the battery cell, the first end of the double-voltage charging port and the first end of the conventional voltage charging and discharging port, the second end is connected to the second end of the battery cell, and the third end is connected to the second end of the double-voltage charging port and the second end of the conventional voltage charging and discharging port.

2. The battery according to claim 1, characterized in that The battery protection module includes: a battery primary protection unit and a battery secondary protection unit; The first end of the battery primary protection unit is connected to the first end of the battery cell, the first end of the double voltage charging port and the first end of the normal voltage charging and discharging port, the second end is connected to the second end of the battery cell, and the third end is connected to the second end of the battery secondary protection unit; The first end of the battery secondary protection unit is connected to the first end of the battery primary protection unit, the first end of the battery cell, the first end of the double-voltage charging port and the first end of the conventional voltage charging and discharging port, the second end is connected to the third end of the battery primary protection unit, and the third end is connected to the second end of the double-voltage charging port and the second end of the conventional voltage charging and discharging port.

3. The battery according to claim 2, characterized in that The battery primary protection unit and the battery secondary protection unit both include: a battery protection control subunit and a battery input and output switch subunit; The voltage collection terminal of the battery protection control subunit is connected to the first terminal of the battery cell, the current collection terminal is connected to the second terminal of the battery cell, the charging control terminal is connected to the input switch of the battery input and output switch subunit, and the discharging control terminal is connected to the output switch of the battery input and output switch subunit.

4. The battery according to claim 3, characterized in that The input switch and the output switch are MOS switches.

5. The battery according to claim 3, characterized in that A loop current collection subunit is further included between the current collection end of the battery protection control subunit and the second end of the battery cell.

6. The battery according to claim 3, characterized in that The battery protection control subunit further includes an abnormality release detection terminal connected to the ground terminal.

7. The battery according to claim 1, characterized in that The step-down pump module includes a preset number of capacitors connected in series.

8. The battery according to claim 1, characterized in that The voltage-doubling charging port supports input of 2 times the voltage and current or 4 times the voltage and current.

9. A terminal device, characterized in that: include: The battery supporting multiple charging voltages according to any one of claims 1 to 8.

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