Battery assembly and electronic equipment

Abstract

The utility model provides a battery assembly and electronic equipment. The battery assembly comprises a battery cell, a protection module, a protection control module and a first connector, the first connector is used for being connected with a second connector in the electronic equipment; the positive electrode of the battery cell is connected with the first connector, the negative electrode of the battery cell is connected with the protection module, and the battery cell is used for supplying power to the electronic equipment through the first connector; the protection module is used for connecting or disconnecting the battery cell and the first connector; the protection control module is connected with the positive electrode of the battery cell, the protection module and the first connector, and the protection control module is used for controlling the protection module to disconnect the battery cell from the first connector when the first connector is not connected with the second connector and controlling the protection module to disconnect the battery cell from the second connector when the first connector is connected with the second connector. And the control protection module conducts the connection between the electric core and the first connector. When the battery assembly is not connected with the electronic equipment, the output end of the battery cell is not electrified, so that the safety of the battery assembly is remarkably improved.

Description

Technical Field

[0001] This disclosure relates to the field of circuit technology, and more particularly to a battery assembly and electronic device. Background Technology

[0002] In the development of electronic devices, batteries are typically required to have 50%-80% charge when they leave the factory, meaning the battery output is always charged. The entire process, from battery cell manufacturing to final integration into the electronic device, involves multiple stages such as packaging, transportation, and production line assembly. Because the battery is charged, if it comes into contact with other metal objects or device pins, it will instantly generate a large current, potentially causing the battery to catch fire or damage other components, creating a serious safety hazard. Utility Model Content

[0003] To overcome the problems existing in the related technologies, this disclosure provides a battery component and an electronic device.

[0004] According to a first aspect of the present disclosure, a battery assembly is provided, including a battery cell, a protection module, a protection control module, and a first connector;

[0005] The first connector is used to connect to a second connector in an electronic device;

[0006] The positive terminal of the battery cell is connected to the first connector, and the negative terminal of the battery cell is connected to the protection module. The battery cell is used to supply power to the electronic device through the first connector.

[0007] The protection module is used to connect or disconnect the battery cell from the first connector.

[0008] The protection control module is connected to the positive terminal of the battery cell, the protection module, and the first connector, respectively. The protection control module is used to: control the protection module to disconnect the battery cell from the first connector when the first connector is not connected to the second connector, and control the protection module to connect the battery cell to the first connector when the first connector is connected to the second connector.

[0009] According to a second aspect of the present disclosure, an electronic device is provided, including a second connector for connection to a first connector in a battery assembly as described in the first aspect.

[0010] The technical solutions provided in this disclosure may have the following beneficial effects:

[0011] In this embodiment, by adding a protection control module, the power supply path of the battery cell can be disconnected in a timely manner when the battery assembly is not connected to the electronic device. This ensures that the output terminal of the battery cell will not be energized in the single-cell state, providing safety protection for the battery assembly and significantly improving its safety. At the same time, when the user needs to detect the connection status between the battery assembly and the electronic device, it also allows automatic identification of whether the connection status between the battery assembly and the electronic device is good by detecting whether the output terminal of the battery cell is energized. This reduces the need for connector detection circuits in the electronic device, effectively saving GPIO resources and wiring area, while also reducing the manpower costs associated with software debugging.

[0012] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0013] Figure 1 This disclosure is a structural diagram of a battery assembly 10 according to an exemplary embodiment;

[0014] Figure 2 This is a structural diagram of another battery assembly 10 shown in this disclosure according to an exemplary embodiment;

[0015] Figure 3 This is a structural diagram of another battery assembly 10 shown in this disclosure according to an exemplary embodiment;

[0016] Figure 4 This is a structural diagram of another battery assembly 10 shown in this disclosure according to an exemplary embodiment;

[0017] Figure 5 This is a structural diagram of an electronic device 20 according to an exemplary embodiment of the present disclosure;

[0018] Figure 6 This is a structural diagram of another electronic device 20 illustrated in this disclosure according to an exemplary embodiment. Detailed Implementation

[0019] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0020] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0021] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0022] To address the issue of constantly energized battery output terminals in electronic devices in related technologies, this disclosure provides a battery assembly. The battery assembly provided in this disclosure can be applied to various electronic devices, such as mobile phones, tablets, and computers, to disconnect the power supply to the battery output terminal when the battery assembly is not connected to the electronic device, thereby preventing the battery output terminal from being constantly energized and avoiding safety hazards.

[0023] Figure 1 This is a structural diagram of a battery assembly 10 according to an exemplary embodiment of the present disclosure. Figure 1 As shown, the battery assembly 10 includes: a battery cell 101, a protection module 102, a protection control module 103, and a first connector 104;

[0024] The first connector 104 is used to connect to a second connector in an electronic device;

[0025] The positive terminal of the battery cell 101 is connected to the first connector 104, and the negative terminal of the battery cell 101 is connected to the protection module 102. The battery cell 101 is used to supply power to electronic devices through the first connector 104.

[0026] Protection module 102 is used to connect or disconnect the battery cell 101 from the first connector 104;

[0027] The protection control module 103 is connected to the positive terminal of the battery cell 101, the protection module 102, and the first connector 104. The protection control module 103 is used to: control the protection module 102 to disconnect the battery cell 101 from the first connector 104 when the first connector 104 is not connected to the second connector, and control the protection module 102 to connect the battery cell 101 to the first connector 104 when the first connector 104 is connected to the second connector.

[0028] In this embodiment, by adding a protection control module, when the first connector 104 of the battery assembly 10 is not connected to the second connector in the electronic device, the protection control module 103 controls the protection module 102 to disconnect the connection between the cell 101 and the first connector 104, thus disconnecting the power supply path of the cell 101 in the battery assembly. This ensures that the cell output terminal of the battery assembly is not energized in a single cell state, effectively avoiding the problem of continuous energization at the cell output terminal, providing additional safety protection for the battery assembly, and significantly improving the safety of the battery assembly. Conversely, when the first connector 104 of the battery assembly 10 is successfully connected to the second connector in the electronic device, the protection control module 103 controls the protection module 102 to connect the cell 101 and the first connector 104, thus connecting the power supply path of the cell 101 in the battery assembly, allowing the cell 101 to supply power to the electronic device, ensuring the normal operating performance of the battery assembly.

[0029] Furthermore, due to the characteristics of the above-mentioned solution in this embodiment, when users have a need to detect the connection status between the battery pack and the electronic device, it is also possible to automatically identify whether the connection status between the battery pack and the electronic device is good by detecting whether the output terminal of the battery cell is charged, thereby reducing the need for setting up connector detection circuits in electronic devices, effectively saving GPIO resources and wiring area, and reducing the manpower costs related to software debugging.

[0030] The protection module 102 can achieve the function of connecting or disconnecting the battery cell 101 from the first connector 104 in various forms, such as a switching transistor, a relay, or a logic circuit. Since switching transistors have advantages such as simple structure, fast response, low power consumption, and high reliability, in some embodiments, the protection module 102 may include a first switching transistor, thereby enabling the protection control module 103 to control the connection between the protection module 102 and the battery cell 101 and the first connector 104 by controlling the conduction state of the first switching transistor.

[0031] For example, when the first connector 104 is not connected to the second connector in the electronic device, the protection control module 103 can control the first switching transistor to turn off, thereby controlling the protection module 102 to disconnect the battery cell 101 from the first connector 104, thus disconnecting the power supply path of the battery cell 101 and de-energizing the battery cell output terminal; and when the first connector 104 is connected to the second connector in the electronic device, the protection control module 103 can control the first switching transistor to turn on, thereby controlling the protection module 102 to connect the battery cell 101 to the first connector 104, thus connecting the power supply path of the battery cell 101 and enabling the battery cell 101 to supply power normally.

[0032] In order to enable real-time monitoring of the connection status between the first connector 104 and the second connector in the electronic device, in some embodiments, a first pin 1041 and a ground pin 1042 can be provided in the first connector 104. The first pin 1041 is connected to the protection control module 103, and when the first connector 104 is connected to the second connector in the electronic device, the first pin 1041 is connected to the ground pin 1042.

[0033] In this embodiment, when the first connector 104 is successfully connected to the second connector in the electronic device, the first pin 1041 is connected to the ground pin 1042. This causes the protection control module 103, which is also connected to the first pin 1041, to detect a low-level signal. This signal triggers the protection control module 103 to perform its action when the battery assembly is connected to the electronic device, namely, controlling the first switching transistor to turn on. Conversely, when the first connector 104 is not connected to the second connector in the electronic device, the first pin 1041 will be disconnected from the ground pin 1042. In this case, the protection control module 103 cannot detect the low-level signal and will therefore trigger its action when the battery assembly is not connected to the electronic device, namely, controlling the first switching transistor to turn off.

[0034] Similarly, the protection control module 103 can also implement its function in various forms, including but not limited to switching transistors, relays, and logic circuits. Given the advantages of switching transistors such as simple structure, fast response, low power consumption, and high reliability, in some embodiments, the protection control module 103 may include a second switching transistor 1031. The second switching transistor 1031 can have different conduction states under different connection states between the first connector 104 and the second connector in the electronic device, to further control the conduction state of the first switching transistor. For example, the second switching transistor 1031 can be turned on when the first connector 104 is not connected to the second connector in the electronic device, to control the first switching transistor to be turned off, and turned off when the first connector 104 is connected to the second connector in the electronic device, to control the first switching transistor to be turned on.

[0035] For example, such as Figure 2 As shown, the second switching transistor 1031 can be an N-channel MOS transistor. The gate of the second switching transistor 1031 is connected to the positive terminal of the cell 101 and the first pin 1041, respectively. The drain and source of the second switching transistor 1031 are connected to the protection module 102, respectively.

[0036] In this embodiment, when the first connector 104 is not connected to the second connector in the electronic device, the first pin 1041 is disconnected from the ground pin 1042, and the gate of the second switching transistor 1031 is connected to the positive terminal of the battery cell 101. This pulls the gate potential of the second switching transistor 1031 to a high level, causing the second switching transistor 1031 to conduct and control the first switching transistor to turn off, thereby disconnecting the circuit connection between the battery cell 101 and the first connector 104 and ensuring the safety of the battery assembly. Conversely, when the first connector 104 is connected to the second connector in the electronic device, the first pin 1041 is connected to the ground pin 1042, causing the gate potential of the second switching transistor 1031 to drop to a low potential close to ground. This causes the second switching transistor 1031 to turn off and control the first switching transistor to conduct, thereby connecting the circuit connection between the battery cell 101 and the first connector 104 and enabling the battery cell 101 to be powered normally.

[0037] Based on the above embodiments, in order to prevent the gate of the second switching transistor 1031 from being damaged due to excessively drastic potential changes during circuit operation, in some embodiments, such as Figure 3 As shown, the protection control module 103 may also include a first resistor 1032, a second resistor 1033, and a capacitor 1034. The first resistor 1032 is connected between the gate of the second switching transistor 1031 and the positive terminal of the cell 101. The second resistor 1033 is connected between the gate of the second switching transistor 1031 and the first pin 1041. The capacitor 1034 is connected between the gate of the second switching transistor 1031 and the source of the second switching transistor 1031.

[0038] This embodiment allows the voltage change of the second switching transistor 1031 to be shared by the first resistor 1032 and the capacitor 1034 during the process of the gate potential of the second switching transistor 1031 being pulled up to a high level when the first connector 104 is not connected to the second connector in the electronic device, thereby smoothing out the rate at which the gate potential is pulled up. When the first connector 104 is connected to the second connector in the electronic device, the capacitor 1034 can discharge, thus forming a delay circuit with the second resistor 1033 to delay the process of the gate potential of the second switching transistor 1031 being lowered, achieving a protective effect on the gate of the second switching transistor 1031. In addition, the second resistor 1033 is connected between the gate of the second switching transistor 1031 and the first pin 1041, which can also prevent damage to the gate of the second switching transistor 1031 caused by other static electricity introduced through the first pin 1041, such as static electricity generated by a human hand, when the first connector 104 is not connected to the second connector in the electronic device. Specifically, to achieve better protection, the resistance value of the first resistor 1032 can be set to be greater than the resistance value of the second resistor 1033. For example, the first resistor 1032 can be set to 1MΩ, the second resistor 1033 to 1KΩ, and the gate voltage of the second switching transistor 1031 can be R2 / (R1+R2) * cell output voltage. It is easy to understand that the resistance values ​​of the first resistor 1032 and the second resistor 1033 can be selected according to actual needs, and this embodiment does not impose any restrictions on this.

[0039] Furthermore, in order to achieve real-time monitoring and display of the battery cell 101's charge status in the battery assembly, some embodiments may also include a sampling resistor and a fuel gauge. The sampling resistor is connected between the negative terminal of the battery cell 101 and the protection module 102, and the fuel gauge is connected across the sampling resistor. The fuel gauge can monitor changes in current or voltage through the sampling resistor, thereby calculating and displaying the remaining charge of the battery cell 101, facilitating power management of electronic devices.

[0040] To provide a clearer understanding of this disclosure, a specific application example is provided below.

[0041] like Figure 4 As shown, the battery assembly 10 includes a battery cell 101, a protection module 102, a protection control module 103, a first connector 104, a sampling resistor, and a fuel gauge;

[0042] Protection module 102 includes a multi-level protection driver and a multi-level protection circuit. The multi-level protection circuit includes a first switching transistor. The multi-level protection driver is connected to the multi-level protection circuit through the control pin DO. The first connector 104 includes a first pin 1041 and a ground pin 1042. Protection control module 103 includes a second switching transistor 1031 (N-channel MOSFET), a first resistor 1032, a second resistor 1033, and a capacitor 1034.

[0043] The positive terminal of the battery cell 101 is connected to the first connector 104, and the negative terminal of the battery cell 101 is connected to the protection module 102 through a sampling resistor;

[0044] The gate of the second switching transistor 1031 is connected to the positive terminal of the cell 101 and the first pin 1041, respectively. The drain of the second switching transistor 1031 is connected to the control pin DO of the multi-level protection drive. The source of the second switching transistor 1031 is connected to the multi-level protection circuit.

[0045] The first resistor 1032 is connected between the gate of the second switching transistor 1031 and the positive terminal of the cell 101, the second resistor 1033 is connected between the gate of the second switching transistor 1031 and the first pin 1041, and the capacitor 1034 is connected between the gate of the second switching transistor 1031 and the source of the second switching transistor 1031.

[0046] The power meter is connected to both ends of the sampling resistor, and it is connected to the positive terminal of the battery cell 101 and the first connector 104.

[0047] In this embodiment, when the first connector 104 is not connected to the second connector in the electronic device, the gate potential of the second switching transistor 1031 is pulled up to a high level through the first resistor 105. At this time, the second switching transistor 1031 is turned on, reducing the level of the control pin DO of the multi-level protection drive, controlling the first switching transistor in the multi-level protection circuit to turn off, thereby disconnecting the circuit connection between the battery cell 101 and the first connector 104, resulting in no power at the battery cell output terminal, ensuring the safety of the battery assembly. Conversely, when the first connector 104 is connected to the second connector in the electronic device, the first pin 1041 is connected to the ground pin 1042, causing the gate potential of the second switching transistor 1031 to be reduced to a low potential close to ground. At this time, the second switching transistor 1031 is turned off, the control pin DO of the multi-level protection drive returns to its normal output level, controlling the first switching transistor in the multi-level protection circuit to turn on, thereby connecting the circuit connection between the battery cell 101 and the first connector 104, realizing normal power supply to the battery cell 101.

[0048] The various technical features in the above embodiments can be combined arbitrarily, as long as there is no conflict or contradiction between the combinations of features. However, due to space limitations, they are not described one by one. Therefore, the arbitrary combination of various technical features in the above embodiments is also within the scope of this specification.

[0049] Corresponding to the aforementioned battery component embodiments, this disclosure also provides an electronic device, which may specifically be a mobile phone, tablet, computer, etc.

[0050] Figure 5 This is a structural diagram of an electronic device 20 according to an exemplary embodiment of the present disclosure. Figure 5 As shown, the electronic device 20 includes a second connector 201 for connection to the first connector 104 in the aforementioned embodiment of the battery assembly 10. Furthermore, the electronic device 20 may also include various charging integrated circuits that implement specific functions of the electronic device.

[0051] In some embodiments, the second connector 201 includes a second pin and a ground pin, wherein the second pin of the second connector 201 is used to connect to its own ground pin when the second connector 201 is connected to the first connector 104 in the battery assembly.

[0052] In some embodiments, such as Figure 6 As shown, the electronic device 20 also includes the battery assembly 10 from the aforementioned embodiments.

[0053] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0054] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

[0055] The above description is merely a preferred embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A battery assembly, comprising: The battery assembly comprises an electric core, a protection module, a protection control module and a first connector; The first connector is used to connect with a second connector in an electronic device; A positive electrode of the electric core is connected with the first connector, and a negative electrode of the electric core is connected with the protection module, and the electric core is used to supply power for the electronic device through the first connector; The protection module is used to turn on or turn off the connection between the electric core and the first connector; The protection control module is connected with the positive electrode of the electric core, the protection module and the first connector respectively, and the protection control module is used to control the protection module to turn off the connection between the electric core and the first connector when the first connector is not connected with the second connector, and control the protection module to turn on the connection between the electric core and the first connector when the first connector is connected with the second connector.

2. The battery assembly of claim 1, wherein, The protection module comprises a first switch transistor; The protection control module is used to: control the first switch transistor to turn off when the first connector is not connected with the second connector, so as to control the protection module to turn off the connection between the electric core and the first connector; and control the first switch transistor to turn on when the first connector is connected with the second connector, so as to control the protection module to turn on the connection between the electric core and the first connector. The first connector comprises a first pin and a ground pin, and the first pin is connected with the protection control module; 3. The battery assembly of claim 2, wherein, The first pin is used to be connected with the ground pin when the first connector is connected with the second connector, so as to make the protection control module control the first switch transistor to turn on. The protection control module comprises a second switch transistor; 4. The battery assembly of claim 3, wherein, The second switch transistor is used to turn on when the first connector is not connected with the second connector, so as to control the first switch transistor to turn off, and turn off when the first connector is connected with the second connector, so as to control the first switch transistor to turn on. The second switch transistor is an N-channel MOS tube, and a gate of the second switch transistor is connected with the positive electrode of the electric core and the first pin respectively, and a drain and a source of the second switch transistor are connected with the protection module respectively.

5. The battery assembly of claim 4, wherein, The protection control module further comprises a first resistor, a second resistor and a capacitor, the first resistor is connected between the gate of the second switch transistor and the positive electrode of the electric core, the second resistor is connected between the gate of the second switch transistor and the first pin, and the capacitor is connected between the gate of the second switch transistor and the source of the second switch transistor.

6. The battery assembly of claim 5, wherein, Further comprising a sampling resistor and a power meter; 7. The battery assembly of claim 1, wherein, The sampling resistor is connected between the negative electrode of the electric core and the protection module, and the power meter is connected across the sampling resistor. The battery assembly comprises a second connector, which is used to connect with the first connector in the battery assembly of any one of claims 1 to 7.

8. An electronic device, comprising: The second connector comprises a second pin and a ground pin, and the second pin is used to be connected with the ground pin when the second connector is connected with the first connector.

9. The electronic device of claim 8, wherein, ​ 10. An electronic device, comprising: The battery assembly of any one of claims 1 to 7, comprising a second connector connected to the first connector in the battery assembly.

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