Electronic equipment and battery

Abstract

The invention provides electronic equipment and a battery. The electronic equipment comprises a shell which comprises a middle frame and a rear cover located on one side of the middle frame; the battery is fixed between the middle frame and the rear cover; the trauma detection circuit comprises a conductive circuit and a processing circuit; the conductive circuit is arranged on the battery and / or a peripheral structural member of the battery, at least part of the orthographic projection of the conductive circuit on the rear cover falls into the range of the orthographic projection of the battery on the rear cover, and the peripheral structural member comprises a middle frame, the rear cover or other structural members between the middle frame and the rear cover; and the processing circuit is used for detecting the conduction condition of the conductive circuit and judging whether the battery has trauma or not according to the conduction condition of the conductive circuit. According to the technical scheme, whether the battery is injured or not can be detected when the battery is subjected to the external mechanical stress, so that the safety of a user is ensured.

Description

[0001] This application is a divisional application. The application number of the original application is 202010955501.0, and the original application date is September 11, 2020. The entire content of the original application is incorporated into this application by reference. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to an electronic device and a battery. Background Art

[0003] As electronic devices such as mobile phones, laptops, and tablets become increasingly integrated into people's lives, the safety of the lithium batteries they contain is drawing increasing attention. Currently, when a battery is low on power and experiences momentary mechanical damage, such as a puncture or cut, the battery's parameters may show no apparent abnormalities. However, continued charging or use of the device can pose a significant safety risk. Detecting battery damage when subjected to external mechanical stress to ensure user safety remains a topic of ongoing research in the industry. Summary of the Invention

[0004] Embodiments of the present application provide an electronic device, a battery, and a battery damage detection method, which can detect whether the battery is damaged when the battery is subjected to external mechanical stress to ensure user safety.

[0005] In a first aspect, the present application provides an electronic device, comprising:

[0006] A housing, comprising a middle frame and a back cover located on one side of the middle frame;

[0007] a battery, the battery being fixed between the middle frame and the back cover;

[0008] A trauma detection circuit, the trauma detection circuit comprising a conductive circuit and a processing circuit;

[0009] The conductive circuit is provided on the battery and / or on a peripheral structural member of the battery, and the orthographic projection of the conductive circuit on the back cover at least partially falls within the range of the orthographic projection of the battery on the back cover. The peripheral structural member includes the middle frame, the back cover, or other structural members between the middle frame and the back cover.

[0010] The processing circuit is used to detect the conduction status of the conductive circuit and determine whether the battery has external damage according to the conduction status of the conductive circuit.

[0011] By providing a conductive circuit and positioning it on the battery and / or a structure proximate to the battery, i.e., a peripheral component of the battery, with at least a portion of the conductive circuit overlapping the battery, the conductive circuit can be pre-damaged before the battery is damaged when the electronic device is subjected to external mechanical damage. In other words, the processing circuit's detection of battery damage is an indirect physical detection of the battery based on the continuity of the conductive circuit. This approach contrasts with traditional solutions that require significant time and power consumption, which rely on detecting the battery's electrochemical properties to determine if the battery is damaged. By detecting whether the conductive circuit is damaged and thus determining if the battery is damaged, it can, on the one hand, predict potential safety hazards in the battery if the conductive circuit is damaged and the battery is about to suffer mechanical damage. This can buy time for the user to take subsequent measures, such as sending the electronic device for repair, effectively preventing battery safety incidents and ensuring the user's personal and property safety. On the other hand, the conductive circuit layout is simple and reliable, allowing for quick and convenient real-time detection within the entire device without requiring significant time, space, or power consumption. This effectively reduces costs, contributes to the trend toward miniaturization of electronic devices, and offers high practicality and reliability.

[0012] In one possible embodiment, the other structural member is a functional structure, at least a portion of which is located between the battery and the back cover, a battery compartment is provided on a side of the middle frame facing the back cover, the battery is connected to the battery compartment, and the battery includes a housing;

[0013] The conductive circuit is arranged on a target surface, which is the inner surface of the shell, or the outer surface of the shell, or the surface of the functional structure, or the surface of the back cover facing the battery, or the bottom surface of the battery compartment.

[0014] Therefore, the wiring position of the conductive circuit can be arranged and set on the battery or a structure close to the battery, that is, the peripheral structural member of the battery according to actual conditions, with diverse choices and strong flexibility.

[0015] In a possible implementation manner, the back cover includes a first cover body and a second cover body, and the conductive circuit is sandwiched between the first cover body and the second cover body.

[0016] As a result, the conductive circuit can be integrated into the back cover. On the one hand, it can be as close to the battery as possible, ensuring the accuracy of battery damage detection. At the same time, since the structural strength of the back cover is greatly reduced when it is damaged, it cannot provide a guarantee for the safety performance of the battery. Integration into the back cover can also provide an early warning of the back cover cracking, allowing users to send the electronic device for repair as soon as possible. On the other hand, since the back cover can form the functional shell structure of the electronic device, the placement of the conductive circuit on it can diversify the performance of the back cover, reduce the adverse effects on other structural components of the electronic device caused by placement on other components, and achieve a reasonable layout.

[0017] In a possible implementation manner, the number of the functional structure is one; or,

[0018] There are multiple functional structures, and the types of the multiple functional structures are different. The multiple functional structures are stacked in sequence, and the target surface is the surface of one of the functional structures.

[0019] Therefore, the conductive circuit can be integrated on the surface of any functional structure. On the one hand, the selection is flexible and the application range is wide. Moreover, due to the thin thickness of the functional structure, it can be as close to the battery as possible to ensure the accuracy of battery damage detection. On the other hand, since each functional structure has a unique functional use, setting the conductive circuit on it can diversify the performance of the functional structure, reduce the adverse effects on other structural parts of the electronic device caused by setting it on other structural parts, and make the layout reasonable.

[0020] In a possible implementation, the types of functional structures include wrapping films, fireproof films, heat sinks, decorative films, and wireless charging coils.

[0021] Therefore, the wiring position of the conductive circuit can be arranged and set on any functional structure according to actual conditions, with diverse choices and strong flexibility.

[0022] In a possible implementation manner, a coverage ratio of the conductive circuit relative to the battery is in a range of 5% to 100%.

[0023] It is understandable that, ideally, the greater the coverage ratio of the conductive circuit to the battery, the better. However, in actual applications, the coverage ratio of the conductive circuit to the battery will be adjusted accordingly with the specific application environment. In extreme cases, for example, when the coverage ratio of the conductive circuit to the battery is covered at a minimum ratio (for example, 5%), it will preferentially cover the portion of the target surface T with relatively low structural strength. Based on this, the coverage ratio of the conductive circuit relative to the battery will be flexibly adjusted according to the specific application environment. It is only necessary to ensure that the battery has the trauma detection function. The embodiments of the present application do not impose strict restrictions on this.

[0024] In a possible implementation manner, the outer contour of the conductive circuit has the same shape as that of the battery.

[0025] As a result, the conductive circuit can fit the battery as closely as possible, ensuring that the target surface of the battery can be accurately and effectively covered, thereby improving the detection rate of trauma detection.

[0026] In a possible implementation manner, the line width range and the line spacing range of the conductive circuit are both within the range of 0.01 mm to 1.5 mm.

[0027] Understandably, ideally, the smaller the conductive trace spacing, the better. However, in actual manufacturing, the smaller the spacing, the more costly and complex the process, and the greater the difficulty of manufacturing. Therefore, setting the conductive trace spacing within the above range fully considers cost and process considerations, resulting in greater mass production, economic benefits, and practicality.

[0028] In a possible implementation manner, the conductive circuit includes a main circuit and a first line end and a second line end formed by two ends of the main circuit for connection, and the main circuit is curved.

[0029] It is understood that the shape of the main circuit is the shape that the conductive circuit as a whole can assume. For example, in this embodiment, the main circuit can extend in a curved shape, thereby enabling the conductive circuit as a whole to assume a curved wiring arrangement. Furthermore, because the conductive circuit needs to connect to other components in the trauma detection circuit, the conductive circuit must have an interface for connecting to the circuit. Therefore, providing a first terminal and a second terminal allows the conductive circuit to have a terminal at each end, allowing the entire conductive circuit to be quickly and conveniently connected to other components in the trauma detection circuit, thereby providing excellent connectivity.

[0030] Exemplarily, the first wire end and the second wire end may be welded to connect the conductive circuit to other components in the trauma detection circuit.

[0031] In a possible implementation manner, the extension path of the main line includes any one or more combinations of a U-shaped, a serpentine, and a spiral.

[0032] For example, the battery may be rectangular, with the main circuit extending in a serpentine shape, thereby forming a conductive circuit with a rectangular outer contour and a serpentine extension path. Alternatively, the battery may be L-shaped, with the main circuit extending in a curved shape, thereby forming a conductive circuit with an L-shaped outer contour and a curved extension path. Alternatively, the battery may be circular, with the main circuit extending in a spiral shape, thereby forming a conductive circuit with a circular outer contour and a spiral extension path.

[0033] In a possible implementation manner, the main line is formed by a conductive line extending in a continuous curve; or,

[0034] The main circuit is formed by at least two conductive lines extending in parallel and synchronously in a curved shape.

[0035] It should be understood that the winding method of the main circuit can be a planar single winding method, a planar double winding method, or a planar multi-winding method. Therefore, the winding method of the main circuit can be selected according to actual conditions, which has high flexibility and a wide range of applications.

[0036] Specifically, a single-winding type is formed by extending a conductive wire in a continuous curve on the target surface, with the ends of the conductive wire forming a first wire end and a second wire end for connection, respectively. A double-winding type is formed by extending two conductive wires in parallel and synchronously on the target surface, with the ends of the two conductive wires on one side forming a first wire end, and the ends of the two conductive wires on the other side forming a second wire end. A multi-winding type is formed by extending two or more conductive wires in parallel and synchronously on the target surface, with the ends of the two or more conductive wires on one side forming a first wire end, and the ends of the two conductive wires on the other side forming a second wire end.

[0037] It can be understood that compared with the planar single-wrap type, the planar multi-wrap type and the planar double-wrap type have an increased number of conductive wires and a certain spacing between adjacent conductive wires, so that when covering the same area of ​​the target surface, the number of turns of the conductive wires will be relatively reduced, and the difficulty of processing and manufacturing is relatively low, which is conducive to reducing processing costs and improving production efficiency.

[0038] In a possible implementation, the main circuit is a thermocouple formed by splicing two metal wires of different conductive materials; or,

[0039] The main circuit is a thermal resistor composed of metal wires made of a single conductive material.

[0040] Thus, the main circuit is configured with a thermocouple or thermal resistor to detect the battery temperature. This allows the conductive circuit to have its own temperature measurement function and detect the temperature resistance of the battery to ensure the normal operation of the battery. In other words, the conductive circuit can have the dual functions of damage detection and temperature measurement. It has diverse performance, strong practicality, and a wide range of applications. In addition, by monitoring the battery surface temperature through a conductive circuit attached to or near the battery, it can be closer to the actual temperature of the battery than the protection plate detection inside the battery.

[0041] In a possible implementation, the main line includes a first line and a second line, the first line and the second line have the same shape and are staggered with each other;

[0042] One end of the first line forms the first line end, the other end of the first line is connected to one end of the second line, and the other end of the second line forms the second line end.

[0043] Thus, the first and second circuits can be staggered so that the spacing between the first circuits can accommodate the second circuits, resulting in a grid-like structure with intersecting main circuits. This structure fully utilizes the spacing between the first and second circuits, allowing for a denser arrangement of conductive circuits due to the complementary gaps between the first and second circuits. This ensures reliable coverage of the target surface, minimizing the possibility of missed detections due to incomplete coverage and ensuring more accurate and reliable detection.

[0044] In a possible implementation, the trauma detection circuit further includes a voltage divider resistor, and the processing circuit includes an analog-to-digital converter and a control unit;

[0045] One end of the voltage divider resistor is connected to the power supply voltage, the other end of the voltage divider resistor is connected to the first end of the conductive circuit and one end of the analog-to-digital converter, the other end of the analog-to-digital converter is connected to the control unit, and the second end of the conductive circuit is grounded;

[0046] The analog-to-digital converter is used to detect the voltage value of the connection point where the voltage-dividing resistor and the conductive line are connected;

[0047] The control unit is used to determine whether the battery has external damage according to the voltage value of the connection point detected by the analog-to-digital converter.

[0048] It should be noted that the connection point between the voltage divider resistor and the conductive circuit, the first terminal, and the input terminal of the analog-to-digital converter are all at the same potential. That is, the voltage value at the connection point between the voltage divider resistor and the conductive circuit, the voltage value at the first terminal, and the voltage value at the input terminal of the analog-to-digital converter are all equal. In other words, the voltage value at the connection point between the voltage divider resistor and the conductive circuit, which can be detected by the analog-to-digital converter, is the voltage value at the first terminal of the conductive circuit and the voltage value at the input terminal of the analog-to-digital converter.

[0049] It is understandable that the voltage divider resistor can adjust the voltage value of the connection point to be detected by the analog-to-digital converter to within the reference voltage range of the analog-to-digital converter. In the actual application of the trauma detection circuit, the voltage value of the connection point will change according to the different states of the conductive circuit. Specifically, the conductive circuit has a certain impedance, and it can conduct normally when it is not punctured by external force. At this time, current can flow through the conductive circuit, and there will be partial voltage division at both ends of the conductive circuit. The voltage value of the connection point where the voltage divider resistor and the conductive circuit are connected is low. When the conductive circuit is punctured by external force, the conductive circuit becomes abnormal. At this time, the voltage value of the connection point where the voltage divider resistor and the conductive circuit are connected is large.

[0050] For example, a conductive line anomaly can be caused by partial damage to the conductive line. In this case, the cross-sectional area of ​​the conductive line decreases. Since the impedance of the conductive line is negatively correlated with the cross-sectional area of ​​the conductive line, the impedance of the conductive line will significantly increase as the cross-sectional area of ​​the conductive line decreases. As a result, the voltage value at the connection point between the voltage divider resistor and the conductive line will significantly increase.

[0051] Alternatively, the conductive circuit abnormality may be a complete breakage of the conductive circuit, in which case the conductive circuit is disconnected (i.e., the connection between the voltage divider resistor and the conductive circuit and GND is disconnected). As a result, the voltage at the connection point between the voltage divider resistor and the conductive circuit increases significantly, specifically the voltage of the power supply (VCC).

[0052] In conjunction with the above description, it should be understood that changes in the state of the conductive circuit can affect the voltage value at the connection point between the voltage divider resistor and the conductive circuit, and the magnitude of the voltage value at the connection point between the voltage divider resistor and the conductive circuit can serve as a basis for determining whether the battery 10 has external damage. In other words, the conductive circuit can serve as the detection object in the damage detection circuit, and the processing circuit can serve as the detection body with detection function, capable of determining whether the battery has external damage based on the conductive state of the conductive circuit.

[0053] In a possible implementation manner, the electronic device further includes a mainboard, and the voltage divider resistor and the processing circuit are provided on the mainboard; or,

[0054] The battery further includes a protection board arranged inside the shell, and the voltage dividing resistor and the processing circuit are arranged on the protection board.

[0055] Therefore, the trauma detection circuit can be fully integrated into the battery, or partially located in the battery and partially located in the mainboard of the electronic device.

[0056] In one possible implementation, when the conductive circuit is normally conductive, the voltage value of the connection point detected by the analog-to-digital converter is less than a preset threshold; when the conductive circuit is abnormal, the voltage value of the connection point detected by the analog-to-digital converter is greater than or equal to the preset threshold;

[0057] The control unit is configured to determine that the battery has external damage when the voltage value of the connection point detected by the analog-to-digital converter is greater than or equal to a preset threshold.

[0058] Therefore, when the control unit determines that the battery has external damage, the housing of the electronic device will also be damaged, allowing the housing of the electronic device to be repaired. Furthermore, when the control unit determines that the battery has external damage, it can execute a restriction process, thereby indirectly providing an early warning of battery safety issues and reducing potential battery safety hazards. The restriction process executed by the control unit is described below.

[0059] In one possible implementation, the electronic device further includes a display screen, which is fixed to a side of the middle frame away from the back cover and electrically connected to the control unit, wherein the control unit is configured to:

[0060] When it is determined that the battery has external damage, a prompt message is popped up on the display screen, and the prompt message is used to remind the user to shut down the electronic device or stop using the electronic device and send the electronic device for repair.

[0061] This allows users to be alerted to potential battery safety hazards in a relatively gentle manner, enabling them to perform relevant actions such as sending the device for repair or shutting down the device to ensure their personal and property safety, with high reliability. For example, a floating window on the display screen can be used to alert users to potential battery safety hazards, suggesting that the user shut down the device as soon as possible or reminding the user to send the electronic device to an after-sales service center for repair or testing.

[0062] In one possible implementation, the control unit is configured to:

[0063] When it is determined that the battery has external damage, the charging capacity of the battery is controlled to be less than or equal to 50%.

[0064] This allows users to be alerted to potential battery safety hazards in a relatively gentle manner, enabling them to perform relevant actions such as sending the device for repair or shutting down the device to ensure their personal and property safety, with high reliability. For example, a floating window on the display screen can be used to alert users to potential battery safety hazards, suggesting that the user shut down the device as soon as possible or reminding the user to send the electronic device to an after-sales service center for repair or testing.

[0065] In a second aspect, the present application provides a battery, comprising:

[0066] shell;

[0067] a protection plate, the protection plate being arranged inside the housing;

[0068] A trauma detection circuit, the trauma detection circuit comprising a conductive circuit and a processing circuit;

[0069] The conductive circuit is provided on the housing, and the processing circuit is provided on the protection board. The processing circuit is used to detect the conduction condition of the conductive circuit and determine whether the battery has external damage according to the conduction condition of the conductive circuit.

[0070] As a result, the trauma detection circuit can be fully integrated inside the battery, so that the battery can have its own trauma detection function. Compared with the single function of the battery in the traditional solution, the battery provided in the embodiment of the present application has diversified structural performance, which can enable the battery to have the dual functions of energy storage and trauma detection. It is highly practical and has a wide range of applications.

[0071] Furthermore, by providing a conductive circuit and positioning it on the battery, the conductive circuit can be pre-damaged before the battery casing experiences external mechanical damage. In other words, the processing circuit's detection of battery damage is an indirect physical detection of the battery based on the continuity of the conductive circuit. This approach contrasts with traditional solutions that require significant time and power consumption, which rely on detecting the battery's electrochemical properties to determine if the battery has been damaged. By detecting whether the conductive circuit is damaged, a potential safety hazard can be predicted in advance if the conductive circuit is damaged and the battery casing is about to be mechanically damaged. This allows the user to take subsequent measures, such as sending the battery for repair or replacement, effectively preventing battery safety incidents and ensuring the safety of the user and their property. Furthermore, the conductive circuit layout is simple and reliable, enabling quick and convenient real-time detection within the battery without requiring significant time, space, or power consumption. This effectively reduces costs, contributes to the trend toward miniaturization of batteries, and offers high practicality and reliability.

[0072] In a possible implementation manner, the outer contour of the conductive circuit has the same shape as that of the battery.

[0073] In a possible implementation manner, a coverage ratio of the conductive circuit relative to the battery is in a range of 5% to 100%.

[0074] In a possible implementation manner, the line width range and the line spacing range of the conductive circuit are both within the range of 0.001 mm to 1.5 mm.

[0075] In a possible implementation manner, the thickness of the conductive circuit is in the range of 0.001 mm to 0.5 mm.

[0076] In a possible implementation, the conductive circuit is fixed to the inner surface or outer surface of the housing, and includes a main circuit and a first wire end and a second wire end formed at two ends of the main circuit for connection, and the main circuit is curved.

[0077] In a possible implementation manner, the extension path of the main line includes any one or more combinations of a U-shaped, a serpentine, and a spiral.

[0078] In a possible implementation manner, the main line is formed by a conductive line extending in a continuous curve; or,

[0079] The main circuit is formed by at least two conductive lines extending in parallel and synchronously in a curved shape.

[0080] In a possible implementation, the main circuit is a thermocouple formed by splicing two metal wires of different conductive materials; or,

[0081] The main circuit is a thermal resistor composed of metal wires made of a single conductive material.

[0082] In a possible implementation, the main line includes a first line and a second line, the first line and the second line have the same shape and are staggered with each other;

[0083] One end of the first line forms the first line end, the other end of the first line is connected to one end of the second line, and the other end of the second line forms the second line end.

[0084] In a possible implementation, the trauma detection circuit further includes a voltage divider resistor, and the processing circuit includes an analog-to-digital converter and a control unit;

[0085] One end of the voltage divider resistor is connected to the power supply voltage, the other end of the voltage divider resistor is connected to the first end of the conductive circuit and one end of the analog-to-digital converter, the other end of the analog-to-digital converter is connected to the control unit, and the second end of the conductive circuit is grounded;

[0086] The analog-to-digital converter is used to detect the voltage value of the connection point where the voltage-dividing resistor and the conductive line are connected;

[0087] The control unit is used to determine whether the battery has external damage according to the voltage value of the connection point detected by the analog-to-digital converter.

[0088] In one possible implementation, when the conductive circuit is normally conductive, the voltage value of the connection point detected by the analog-to-digital converter is less than a preset threshold; when the conductive circuit is abnormal, the voltage value of the connection point detected by the analog-to-digital converter is greater than or equal to the preset threshold;

[0089] The control unit is configured to determine that the battery has external damage when the voltage value of the connection point detected by the analog-to-digital converter is greater than or equal to a preset threshold.

[0090] In one possible implementation, the control unit is configured to:

[0091] When it is determined that the battery has external damage, the charging capacity of the battery is controlled to be less than or equal to 50%.

[0092] In a third aspect, the present application provides a battery damage detection method, which is applied to an electronic device. The electronic device includes a housing, a battery disposed within the housing, and a damage detection circuit. The damage detection circuit includes a conductive circuit and a voltage divider resistor connected to the conductive circuit. The orthographic projection of the conductive circuit on the housing at least partially falls within the range of the orthographic projection of the battery on the housing. The method includes:

[0093] Detecting a voltage value at a connection point where the voltage-dividing resistor and the conductive circuit are connected;

[0094] It is determined whether the battery has external damage according to the voltage value of the connection point.

[0095] In one possible implementation, determining whether the battery has external damage according to the voltage value of the connection point includes:

[0096] When the detected voltage value of the connection point is greater than or equal to a preset threshold, determining that the battery has external damage;

[0097] When the detected voltage value of the connection point is less than the preset threshold, it is determined that the battery has no external damage.

[0098] In a possible implementation manner, the method further includes:

[0099] When it is determined that the battery has external damage, the charging capacity of the battery is controlled to be less than or equal to 50%.

[0100] In a possible implementation, the electronic device further includes a display screen, the display screen is fixed to the housing, and the method further includes:

[0101] When it is determined that the battery has external damage, a prompt message is popped up on the display screen, and the prompt message is used to remind the user to shut down the electronic device or stop using the electronic device and send the electronic device for repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0102] Figure 1 This is a schematic structural diagram of an electronic device provided by an embodiment of the present application from one angle;

[0103] Figure 2This is an exploded schematic diagram of an electronic device provided in an embodiment of the present application;

[0104] Figure 3 yes Figure 1 The electronic device shown is a schematic cross-sectional view taken along line BB;

[0105] Figure 4 1 is a schematic diagram of the circuit structure of a damage detection circuit of an electronic device provided in an embodiment of the present application;

[0106] Figure 5 is a schematic structural diagram of an electronic device provided in an embodiment of the present application from another angle;

[0107] Figure 6 This is a partial structural diagram of an electronic device provided in an embodiment of the present application;

[0108] Figure 7 This is a schematic structural diagram of a battery provided in an embodiment of the present application from one angle;

[0109] Figure 8 yes Figure 7 The battery shown is a schematic cross-sectional view taken along line CC;

[0110] Figure 9 This is a schematic structural diagram of a battery provided in an embodiment of the present application from another angle;

[0111] Figure 10 This is a schematic diagram of a structure in which a conductive circuit of an electronic device provided in the first embodiment of the present application is arranged on a battery;

[0112] Figure 11 This is a schematic diagram of the coverage ratio of the conductive circuit of the electronic device relative to the battery provided in the first embodiment of the present application;

[0113] Figure 12 This is a schematic diagram of another coverage ratio of the conductive circuit of the electronic device relative to the battery provided in the first embodiment of the present application;

[0114] Figure 13 This is a schematic structural diagram of a conductive circuit of an electronic device provided in the first embodiment of the present application;

[0115] Figure 14 This is another structural schematic diagram of the conductive circuit of the electronic device provided in the first embodiment of the present application;

[0116] Figure 15 This is another structural diagram of the conductive circuit of the electronic device provided in the first embodiment of the present application;

[0117] Figure 16 This is another structural diagram of the conductive circuit of the electronic device provided in the first embodiment of the present application;

[0118] Figure 17 This is another structural diagram of the electronic device provided by the first embodiment of the present application, in which the conductive circuit is arranged on the battery;

[0119] Figure 18 This is another structural diagram of the conductive circuit of the electronic device provided by the first embodiment of the present application being arranged on a battery;

[0120] Figure 19 This is a fifth structural diagram of the conductive circuit of the electronic device provided in the first embodiment of the present application;

[0121] Figure 20 This is a sixth structural diagram of the conductive circuit of the electronic device provided in the first embodiment of the present application;

[0122] Figure 21 This is a seventh structural diagram of the conductive circuit of the electronic device provided in the first embodiment of the present application;

[0123] Figure 22 This is a schematic diagram of a structure in which the functional structure of an electronic device provided by a second embodiment of the present application is arranged on a battery;

[0124] Figure 23 This is a schematic diagram of a structure in which the functional structure of an electronic device provided in a third embodiment of the present application is arranged on a battery;

[0125] Figure 24 This is a schematic structural diagram of a fourth embodiment of an electronic device provided by the present application, in which a conductive circuit is provided in a functional structure;

[0126] Figure 25 This is a schematic structural diagram of a fifth embodiment of an electronic device provided by the present application, in which a conductive circuit is provided in a functional structure;

[0127] Figure 26 This is a partial structural diagram of an electronic device provided in a sixth embodiment of the present application;

[0128] Figure 27 This is a schematic structural diagram of two of the multiple functional structures provided in the seventh embodiment of the present application being sequentially arranged on a battery;

[0129] Figure 28 This is a schematic structural diagram of an electronic device provided in an eighth embodiment of the present application, in which a conductive circuit is provided in a middle frame;

[0130] Figure 29 This is a schematic structural diagram of a ninth embodiment of the present application in which a conductive circuit of an electronic device is provided on a back cover;

[0131] Figure 30This is another structural diagram of an electronic device provided by the ninth embodiment of the present application, in which the conductive circuit is provided on the back cover;

[0132] Figure 31 Schematic diagram of the battery damage detection method provided in the embodiment of the present application. DETAILED DESCRIPTION

[0133] The specific implementation of the present application will be clearly described below with reference to the accompanying drawings.

[0134] This application provides an electronic device, a battery, and a battery damage detection method. The battery can be used in any device equipped with a battery, such as a new energy vehicle. The electronic device can be any device equipped with a battery. For example, the electronic device can include, but is not limited to, mobile phones, tablet computers, laptop computers, smart bracelets, smart watches, Bluetooth headsets, early childhood education robots, and other devices.

[0135] Please refer to Figures 1-4 The electronic device 100 includes a battery 10, a housing 20, a motherboard 30, a damage detection circuit 40, and a functional structure 50. The battery 10 is the energy storage structure within the electronic device 100, capable of providing reliable electrical energy for the normal operation of the electronic device 100 and meeting its power requirements. The housing 20 is the outer shell 11 of the electronic device 100, which houses and encapsulates the various components of the electronic device 100, protecting them from external intrusions such as dust and moisture, providing excellent protection. The motherboard 30 is the core component of the electronic device 100, serving as a carrier to connect the important components of the electronic device 100 in series, thereby enabling them to perform their respective functions. The functional structure 50 is a unit structure within the electronic device 100 that can independently perform corresponding functions. It can be arranged at a corresponding position between the battery 10 and the housing 20 according to different actual application scenarios. For example, the functional structure 50 may include a wrapping film, a fireproof film, a heat sink, a decorative film, and a wireless charging coil. The specific implementation form and connection location of the functional structure 50 will be described in detail below. The damage detection circuit 40 is a detection circuit in the electronic device 100 or the battery 10 that can indirectly detect whether the battery 10 is damaged due to mechanical damage, and can indirectly provide early warning of safety issues of the battery 10.

[0136] It should be noted that Figures 1-4The purpose is only to schematically describe the connection relationship between the battery 10, the housing 20, the mainboard 30, the trauma detection circuit 40 and the functional structure 50, and is not to specifically limit the connection position, specific structure and quantity of each device. The structure illustrated in the embodiment of the present application does not constitute a specific limitation on the electronic device 100. In other embodiments of the present application, the electronic device 100 may include more or fewer components than shown in the figure, or combine certain components, or split certain components, or arrange the components differently. The illustrated components can be implemented in hardware, software, or a combination of software and hardware.

[0137] In the embodiments of the present application, for ease of understanding, a mobile phone, an electronic device 100 with a wide range of users and rich application scenarios, is used as an example for description, but the present invention is not limited thereto.

[0138] Please refer to Figure 3 、 Figure 4 and Figure 5 The housing 20 includes a middle frame 21, a display screen 22, a front cover 23, and a rear cover 24. The front cover 23 and rear cover 24 are respectively connected to opposite sides of the middle frame 21, and together with the middle frame 21, they form a housing for the electronic device 100. This housing accommodates components such as the motherboard 30, the battery 10, and various components and functional structures 50 that comprise the damage detection circuit 40. The display screen 22 is secured to the front cover 23 and can display visual information such as images, colors, and text.

[0139] It is understood that when the electronic device 100 is a mobile phone, the front cover 23 is the cover that faces the user's face when the user holds the phone. It can be provided with a display screen 22 to present visual information such as images, colors, and text. The back cover 24 is the cover that faces away from the user's face when the user holds the phone. It can be provided with a camera module to serve as a rear camera to capture static images or dynamic videos from the rear of the phone. The back cover 24 can be made of glass, plastic, or ceramic.

[0140] Please refer to Figure 2 and Figure 6In the embodiment of the present application, the battery 10 is fixed between the middle frame 21 and the back cover 24. Therefore, it should be understood that the middle frame 21, the back cover 24 and the functional structure 50 are located as a whole on the periphery of the battery 10 and are arranged close to the battery 10, and can have a direct or indirect connection relationship with the battery 10. That is, the middle frame 21, the back cover 24 and the functional structure 50 can be regarded as the peripheral structural member 60 of the battery 10. That is, the peripheral structural member 60 includes the middle frame 21, the back cover 24 and the functional structure 50. Therefore, when the peripheral structural member 60 is mechanically damaged, it will lose or will soon lose its structural protection function for the battery 10, or it will also cause damage to the battery at the same time, bringing hidden dangers to the normal use of the battery 10, that is, damage to the peripheral structural member 60 can reflect damage to the battery 10. However, it should be understood that the peripheral structural members 60 of the battery 10 are not limited to this. Structural members located between the middle frame 21 and the back cover 24 and that can have a direct or indirect connection relationship with the battery 10 can be regarded as the peripheral structural members 60 of the battery 10. The embodiments of the present application do not impose strict restrictions on this.

[0141] Please continue reading Figure 2 and Figure 6 The middle frame 21 is provided with a mounting slot 25 and a battery compartment 26. The mounting slot 25 can accommodate the motherboard 30, and the battery compartment 26 can accommodate the battery 10. It can be understood that when the back cover 24 is connected to the middle frame 21, it can cover the mounting slot 25 and the battery compartment 26. When the user removes the back cover 24, the mounting slot 25 and the battery compartment 26 are opened, so that the motherboard 30 can be installed in the mounting slot 25 and the battery 10 can be installed in the battery compartment 26, or the motherboard 30 can be removed from the mounting slot 25 and the battery 10 can be removed from the battery compartment 26. In other words, the mounting slot 25 and the battery compartment 26 are arranged on the side of the middle frame 21 facing the back cover 24. Exemplarily, the mounting slot 25 and the battery compartment 26 are adjacently arranged in the length direction of the middle frame 21, that is, the length direction of the electronic device 100.

[0142] Please refer to Figure 7 and Figure 8The battery 10 includes a shell 11, a protective plate 12 and a battery cell 13 arranged inside the shell 11. The shell 11 includes an inner surface 111 and an outer surface 112. The difference between the inner surface 111 of the shell 11 and the outer surface 112 of the shell 11 lies in the different usage scenarios of each. The inner surface 111 of the shell 11 can be understood as being located inside the battery 10 and in a relatively closed space, which can effectively isolate external dust, water vapor, etc. In other words, the inner surface 111 of the shell 11 is the surface of the shell 11 facing the battery cell 13. The outer surface 112 of the shell 11 can be understood as being located outside the battery 10 and in a relatively open space. That is, the outer surface 112 of the shell 11 is the surface of the shell 11 facing away from the battery cell 13 and exposed to the external environment. For example, when the battery 10 is a rectangular battery 10, the inner surface 111 of the shell 11 is the six surfaces located inside the battery 10, and the outer surface 112 of the shell 11 is the six surfaces located outside the battery 10.

[0143] The protection board 12 is an integrated circuit board that has the dual functions of managing the battery 10 and protecting the battery 10 , and can provide supervision and protection for the charging and discharging of the battery 10 .

[0144] The battery cell 13 is the electricity storage part of the battery 10, which can be surrounded by the inner surface 111 of the outer shell 11 and is encapsulated by the outer shell 11, so as to have good sealing performance and avoid being disturbed by the external environment. For example, the battery 10 is a lithium battery 10. The outer shell 11 can be a hard shell made of, for example, aluminum, steel, nickel or their respective alloys. Alternatively, the outer shell 11 can also be a soft shell made of aluminum-plastic film. Among them, the aluminum-plastic film is an aluminum-plastic composite film, which refers to a film product used for product packaging and has both an aluminum foil layer and a plastic film layer. In the field of lithium batteries, aluminum-plastic film is used for the packaging of soft-pack batteries. It is a supporting product for the battery cells of soft-pack batteries. It mainly plays the role of protecting the internal battery materials and isolating the internal battery cells from the outside world.

[0145] That is, the battery 10 can be either a hard-shell battery or a soft-pack battery. Compared to hard-shell batteries, soft-pack batteries can rupture and expand in the event of a safety hazard, making them less likely to explode. They offer advantages such as improved safety, light weight, high battery capacity, good cycle performance, low internal resistance, and flexible design, making them widely applicable to electronic devices 100.

[0146] In the embodiments of this application, the battery 10 provided in the embodiments of this application will be described using an example in which the outer shell 11 is made of aluminum-plastic film, i.e., the battery 10 is a soft-pack battery. It will be understood that the outer shell 11 acts as a protective layer for the battery cell 13, providing structural protection for the battery cell 13. However, the outer shell 11 made of aluminum-plastic film has relatively low structural strength and is more susceptible to damage such as punctures and cuts from instantaneous mechanical damage.

[0147] For example, when the outer shell 11 is damaged, the battery 10 may be at a relatively high charge (e.g., higher than 60%) and may experience thermal runaway on the spot, causing an explosion. Alternatively, when the outer shell 11 is damaged, the battery 10 may be at a relatively high charge (e.g., higher than 60%) but may not experience thermal runaway on the spot, but continuing to charge and use the battery may cause the battery 10 to explode. Alternatively, when the outer shell 11 is damaged, the battery 10 may be at a relatively low charge (e.g., lower than 60%) and various parameters (such as terminal voltage and internal resistance) may show no obvious abnormalities, but continuing to charge and use the battery may pose a significant safety hazard.

[0148] Therefore, in the embodiment of the present application, the trauma detection circuit 40 can provide a corresponding battery 10 trauma detection mechanism to ensure that the battery 10 trauma can be effectively detected. It can also provide an early warning for the trauma of the battery 10, so that the failure of the battery 10 can be detected early, and the battery 10 safety accidents can be prevented to ensure the personal safety of the user. It can be understood that the battery 10 trauma can be understood as the presence of mechanical damage to the outer shell 11 of the battery 10, which will lose or will lose the structural protection function of the battery 10, and thus will bring hidden dangers to the normal use of the battery 10 (for example, charging use).

[0149] In conjunction with the above description, it should be understood that the trauma detection circuit 40 can provide timely warnings and perform relevant restriction processing when the battery 10 has trauma, thereby minimizing the possibility of user safety problems caused by the trauma of the battery 10. The details will be explained in detail below.

[0150] Please refer to Figure 2 、 Figure 4 、 Figure 6 and Figure 8 The trauma detection circuit 40 includes a voltage-dividing resistor 41, a conductive circuit 42 and a processing circuit 43. The processing circuit 43 includes an analog-to-digital converter 44 (ADC) and a control unit 45. The voltage-dividing resistor 41 and the processing circuit 43 can be arranged on the main board 30, or on the protective plate 12 of the battery 10. The control unit 45 can be an independent electronic device, or a collection of electronic devices, or a circuit arranged on a circuit board. The conductive circuit 42 can be a physical circuit structure formed by a thin wire made of conductive material arranged in a curved shape, which can be arranged on the battery 10 and / or the peripheral structural member 60 of the battery 10 (that is, it can be only on the battery 10, or only on the peripheral structural member, or on both the battery 10 and the peripheral structural member 60). The wiring position of the conductive circuit 42 can be adjusted according to the actual application requirements, which is flexible and has a wide range of applications.

[0151] Based on the above description, it should be understood that the trauma detection circuit 40 can be fully integrated into the battery 10, or partially located in the battery 10 and partially located in the mainboard 30 of the electronic device 100. When the trauma detection circuit 40 is fully integrated into the battery 10, the voltage divider resistor 41 and the processing circuit 43 are disposed on the protective plate 12 of the battery 10, and the conductive circuit 42 is disposed on the outer casing 11 of the battery 10. As a result, the battery 10 can have the dual functions of energy storage and trauma detection, which is highly practical and has a wide range of applications.

[0152] It is understandable that if the outer casing 11 is mechanically damaged (the battery 10 is damaged), continuing to charge the battery 10 normally may cause certain safety issues for a period of time. Therefore, providing the conductive circuit 42 and disposing the conductive circuit 42 on the battery 10 and / or the peripheral structural member 60 of the battery 10 can ensure that the conductive circuit 42 is located outside the outer casing 11 of the battery 10 in most cases. Its presence can be understood as a protective layer for the battery 10.

[0153] Based on this, when the conductive circuit 42 is broken by external mechanical damage, it can be equated with mechanical damage to the outer casing 11 of the battery 10. In other words, in the embodiments of the present application, an abnormality in the conductive circuit 42 can be considered equivalent to damage to the battery 10. Thus, by having the conductive circuit 42 and the processing circuit 43 together constitute the damage detection circuit 40, the processing circuit 43 can detect whether the battery 10 has been damaged by detecting the conductive state of the conductive circuit 42, thereby indirectly providing an early warning of safety issues with the battery 10 and implementing relevant restrictive processing.

[0154] Specifically, one end of the voltage divider resistor 41 is connected to a power supply voltage (Volt Current Condenser, VCC), the other end of the voltage divider resistor 41 is connected to a first terminal 422 of the conductive circuit 42 and one end of the analog-to-digital converter 44, the other end of the analog-to-digital converter 44 is connected to the control unit 45, and a second terminal 423 of the conductive circuit 42 is connected to ground (GND). The analog-to-digital converter 44 is capable of detecting the connection point voltage value (e.g., the voltage value at point A) where the voltage divider resistor 41 and the conductive circuit 42 are connected in real time, and processes the detected connection point voltage value and transmits it to the control unit 45. The control unit 45 is capable of obtaining the processed connection point voltage value transmitted by the analog-to-digital converter 44 in real time and determining whether the battery 10 has external damage based on the magnitude of the received processed connection point voltage value. In other words, the control unit 45 is capable of determining whether the battery 10 has external damage based on the connection point voltage value detected by the analog-to-digital converter 44.

[0155] It should be noted that the connection point (e.g., point A) where the voltage divider resistor 41 and the conductive circuit 42 meet, the first terminal 422, and the input terminal of the analog-to-digital converter 44 are all at the same potential. That is, the voltage at the connection point where the voltage divider resistor 41 and the conductive circuit 42 meet, the voltage at the first terminal 422, and the voltage at the input terminal of the analog-to-digital converter 44 are all equal. In other words, the voltage at the connection point where the voltage divider resistor 41 and the conductive circuit 42 meet, which can be detected by the analog-to-digital converter 44, is the voltage at the first terminal 422 of the conductive circuit 42, and is also the voltage at the input terminal of the analog-to-digital converter 44.

[0156] It is understandable that the voltage divider resistor 41 can adjust the voltage value of the connection point to be detected by the analog-to-digital converter 44 to within the reference voltage range of the analog-to-digital converter 44. In the actual application of the trauma detection circuit 40, the voltage value of the connection point will change according to the different states of the conductive circuit 42. Specifically, the conductive circuit 42 has a certain impedance, and it can be normally conductive when it is not punctured by external force. At this time, current can flow through the conductive circuit 42, and there will be partial voltage division at both ends of the conductive circuit 42. The voltage value of the connection point where the voltage divider resistor 41 and the conductive circuit 42 are connected is low. When the conductive circuit 42 is punctured by external force, the conductive circuit 42 is abnormal. At this time, the voltage value of the connection point where the voltage divider resistor 41 and the conductive circuit 42 are connected is large.

[0157] In one possible embodiment, the abnormality of the conductive line 42 may be a partial breakage of the conductive line 42. In this case, the cross-sectional area of ​​the conductive line 42 decreases. Since the impedance of the conductive line 42 is negatively correlated with the cross-sectional area of ​​the conductive line 42, the impedance of the conductive line 42 will significantly increase as the cross-sectional area of ​​the conductive line 42 decreases. As a result, the voltage value at the connection point between the voltage divider resistor 41 and the conductive line 42 increases significantly.

[0158] In another possible embodiment, the abnormality of the conductive circuit 42 may be that the conductive circuit 42 is completely damaged. In this case, the conductive circuit 42 is disconnected (i.e., the connection between the voltage divider resistor 41 and the conductive circuit 42 and GND is disconnected). As a result, the voltage value at the connection point where the voltage divider resistor 41 and the conductive circuit 42 are connected increases significantly, and specifically may be the voltage value of the power supply (VCC).

[0159] In conjunction with the above description, it should be understood that changes in the state of the conductive circuit 42 can affect the voltage value at the connection point between the voltage-dividing resistor 41 and the conductive circuit 42. The magnitude of the voltage value at the connection point between the voltage-dividing resistor 41 and the conductive circuit 42 can serve as a basis for determining whether the battery 10 has external damage. In other words, the conductive circuit 42 can serve as the detection object in the damage detection circuit 40, and the processing circuit 43 can serve as the detection body with detection function, capable of determining whether the battery 10 has external damage based on the conductive state of the conductive circuit 42.

[0160] Specifically, when the conductive circuit 42 is conducting normally, the connection point voltage value detected by the analog-to-digital converter 44 is less than a preset threshold. Thus, the control unit 45 can determine that the battery 10 has no external damage when the connection point voltage value detected by the analog-to-digital converter 44 is less than the preset threshold. When the conductive circuit 42 is abnormal, the connection point voltage value detected by the analog-to-digital converter 44 is greater than or equal to the preset threshold. Thus, the control unit 45 can determine that the battery 10 has external damage when the connection point voltage value detected by the analog-to-digital converter 44 is greater than or equal to the preset threshold. Exemplarily, the preset threshold can be 0.5 times the power supply voltage, i.e., 0.5VCC.

[0161] In a specific application scenario, the impedance of the voltage divider resistor 41 is 200 kΩ, and the power supply voltage (denoted by VCC in the figure) is 3.3 V. Under normal circumstances, the voltage at point A, where the voltage divider resistor 41 connects to the conductive trace 42, is 0.5 VCC. When the conductive trace 42 is cut and disconnected, the voltage at point A returns to the power supply voltage, i.e., 3.3 V. Therefore, when the control unit 45 detects a dramatic change in the voltage at point A via the analog-to-digital converter 44, it determines that the battery 10 has been damaged.

[0162] In the embodiment of the present application, when the control unit 45 determines that the battery 10 has external damage, the housing 20 of the electronic device 100 will also be damaged, so that the housing 20 of the electronic device 100 can be repaired. In addition, when the control unit 45 determines that the battery 10 has external damage, it can execute a restriction process, thereby indirectly providing an early warning of safety issues with the battery 10 and reducing potential safety hazards of the battery 10. The restriction process executed by the control unit 45 is described below.

[0163] In one possible embodiment, if the control unit 45 determines that the battery 10 has external damage, the control display screen 22 pops up a prompt message, which is used to remind the user to shut down the electronic device 100 or stop using the electronic device 100 and send the electronic device 100 for repair. In this way, the user can be reminded in a relatively gentle manner that there is a safety hazard in the battery 10, and then the user can perform relevant operations such as sending for repair or shutting down the device to ensure his or her personal safety and property safety, which is highly reliable. For example, the user can be reminded in the form of a floating window on the interface of the display screen 22 that there is a safety hazard in the battery 10, and the user is advised to shut down the device as soon as possible or be reminded to send the electronic device 100 to an after-sales service center for relevant processing such as repair or testing.

[0164] For example, the floating window may display "An abnormality has been detected in your battery 10. It will automatically shut down in ten minutes" and include options for "Shut down now" and "Cancel". The user can click the "Shut down now" option to shut down. Alternatively, the floating window may display the content "An abnormality has been detected in your battery 10. Please stop using the phone immediately and send it to after-sales service as soon as possible to confirm the safety of the battery 10". It may also include contact information for after-sales service, as well as options for "Agree to report battery 10 problems to after-sales service" and "Cancel". The user can select "Agree to report battery 10 problems to after-sales service". In response to the above selection, the control unit 45 may send its own identification together with the information that there is a safety problem with the battery 10 to the server of the manufacturer of the electronic device 100 for storage.

[0165] In another possible embodiment, when the control unit 45 determines that the battery 10 has external damage, the state of charge (SoC) of the battery 10 is controlled to be less than or equal to 50%. In this way, a more reasonable charge level can be set when the battery 10 has external damage, avoiding the problem of further damage to the battery 10 due to excessive maximum charge level, which may shorten the battery 10 lifespan. This can also minimize the safety risks caused by overcharging the battery 10 and prevent further losses.

[0166] It should be noted that 50% of the charging capacity is a relatively safe charging capacity. In actual application, a slight deviation is allowed. For example, the charging capacity can be 52%, 55% or 60%.

[0167] It is understood that controlling the charge capacity of the battery 10 is equivalent to controlling the charging power of the battery 10, and controlling the charging power of the battery 10 can be achieved by controlling the charging voltage and / or the charging current of the battery 10. For example, the battery 10's charge cut-off voltage can be lowered; or the battery 10's maximum charge current can be lowered; or both the battery 10's charge cut-off voltage and the battery 10's maximum charge current can be lowered. Thus, when the battery 10's charge capacity has reached or is about to reach the battery 10's maximum charge capacity, and the battery 10's voltage has reached or is about to reach the battery 10's maximum charge voltage, the charging of the battery 10 can be controlled to slow down or stop.

[0168] For example, the control unit 45 can limit the charging current of the battery 10 to achieve the requirement of limiting the charging speed of the battery 10. When it is determined that the battery 10 has external damage, the battery 10 is restricted from fast charging with a large charging current, and the battery 10 is only allowed to be slow charged with a small charging current, thereby protecting the battery 10 and ensuring the personal safety and property safety of the user. Alternatively, when it is determined that the battery 10 has external damage, the battery 10 is prohibited from continuing to charge, thereby effectively monitoring the charging capacity of the battery 10, avoiding the problem of thermal runaway caused by overcharging of the battery 10, and playing a role in protecting the battery 10 and saving electricity.

[0169] In another possible embodiment, when the control unit 45 determines that the battery 10 has external damage, it sends a prompt instruction to the server, and the prompt instruction is used to notify the after-sales service personnel that the battery 10 of the electronic device 100 has external damage, wherein the prompt instruction includes the device information of the electronic device 100. For example, the server can display the device information of the electronic device 100 and the information that the battery 10 of the electronic device 100 has a safety problem in the form of a pop-up window on the computer screen of the after-sales service personnel. In this way, the after-sales service personnel can find the contact information left by the user when purchasing the electronic device 100 based on the device information of the electronic device 100, and then contact the user through the contact information and inform the user to take the electronic device 100 to the official maintenance point for inspection and repair as soon as possible.

[0170] In another possible embodiment, when the control unit 45 determines that the battery 10 has external damage, it controls the electronic device 100 to activate a battery protection mode. The battery protection mode restricts the user from using certain functions or applications. This can reduce the rate at which the battery 10 consumes power, preventing safety incidents caused by rapid power consumption and effectively preventing dangerous situations from occurring during charging of batteries 10 that may pose safety risks.

[0171] For example, the battery 10 protection mode can limit applications that consume a lot of power per unit time (for example, cameras, video calls, videos), or it can limit the use of functions that are likely to cause safety hazards to the battery 10 (for example, the fast charging function can be limited, and the electronic device 100 can only charge the battery 10 in a slow charging manner, or directly prohibit the electronic device 100 from charging the battery 10 in any way). The battery 10 protection mode can be automatically turned on when the control unit 45 determines that the battery 10 has external damage, and the user needs to manually turn it off when the battery 10 protection mode is turned off.

[0172] It should be noted that the implementation of the restriction process executed by the control unit 45 is not limited to the possibilities described above. The control unit 45 can also control the speaker to play a voice message when it determines that the battery 10 has external damage. The voice message is used to remind the user to shut down the electronic device 100, stop using the electronic device 100, and send the electronic device 100 for repair. Therefore, it should be understood that the restriction process executed by the control unit 45 has various possibilities. As long as the restriction process can reduce the safety risks caused by the continued use of the battery 10, the embodiments of this application do not impose specific limitations on this.

[0173] Based on the above description, the damage detection circuit 40 in the embodiment of the present application can determine whether the battery 10 has been damaged by detecting the continuity of the conductive circuit 42. If the battery 10 has been damaged, it can execute corresponding restriction processing to remind the user to pay attention to the safety of the battery 10, effectively reducing the safety risks of the battery 10 and ensuring the personal safety of the user. In addition, the damage detection function of the damage detection circuit 40 consumes less than 5μW of power of the device, which can ensure that the battery life of the electronic device 100 is not affected.

[0174] The above clearly explains the detection principle of the damage detection circuit 40 . The following will specifically explain the structure and position of the detection object of the damage detection circuit 40 , namely, the conductive circuit 42 .

[0175] It should be understood that in the embodiments of the present application, in order to ensure the reliability of the battery 10 damage detection results, the conductive circuit 42 needs to be provided on the battery 10 and / or on the peripheral structural member 60 of the battery 10. In addition, in order to ensure that the presence of damage to the battery 10 can be successfully detected by the on-off switching of the conductive circuit 42, at least a portion of the conductive circuit 42 needs to overlap with the battery 10 (i.e., the orthographic projection of the conductive circuit 42 on the housing 20 at least partially falls within the range of the orthographic projection of the battery 10 on the housing 20). In other words, the wiring position of the conductive circuit 42 needs to correspond to that of the battery 10, thereby avoiding the problem of ineffective detection due to complete misalignment between the two (i.e., there is no overlapping portion between the two).

[0176] It should be noted that the conductive circuit 42 can be entirely disposed on the battery 10, or entirely disposed on the peripheral structural member 60 of the battery 10, or partially disposed on the battery 10 and partially disposed on the peripheral structural member 60 of the battery 10, wherein the peripheral structural member 60 includes the middle frame 21, the back cover 24, or the functional structure 50. The following description will be based on the example of the conductive circuit 42 being entirely disposed on the battery 10 or entirely disposed on the peripheral structural member 60 of the battery 10, but it should be understood that this is not a limitation.

[0177] Please refer to Figure 9-Figure 30Specifically, the conductive circuit 42 can be fixed to any one of the middle frame 21, the back cover 24, the battery 10 or the functional structure 50, and the orthographic projection of the conductive circuit 42 on the back cover 24 at least partially falls within the range of the orthographic projection of the battery 10 on the back cover 24.

[0178] Thus, by providing a conductive trace 42 and positioning it on the battery 10 or a structure proximate to the battery 10, i.e., the peripheral structural member 60 of the battery 10, with at least a portion of the conductive trace 42 overlapping the battery 10, the conductive trace 42 can be pre-damaged compared to the battery 10 when the electronic device 100 is subjected to external mechanical damage. In other words, the processing circuit 43 detects damage to the battery 10 through an indirect physical detection of the battery 10 based on the continuity of the conductive trace 42. Compared to conventional solutions that consume a great deal of time and power, this detection mechanism, which determines whether the battery 10 has been damaged by detecting its electrochemical properties, consumes a great deal of time and power. By detecting whether the conductive trace 42 is damaged and thus determining whether the battery 10 has been damaged, it is possible to predict in advance whether the battery 10 is vulnerable to mechanical damage if the conductive trace 42 is damaged. This allows the user to take subsequent measures, such as sending the electronic device 100 for repair, to buy time, effectively preventing battery 10 safety incidents and ensuring the user's personal and property safety. On the other hand, the arrangement of the conductive circuit 42 is simple and reliable, and can quickly and conveniently achieve the effect of real-time detection in the entire machine without spending a lot of time, occupying a lot of space and consuming power. It can effectively reduce costs, is conducive to the development trend of miniaturization of electronic equipment 100, and has strong practicality and reliability.

[0179] With reference to the above description, the wiring position of the conductive circuit 42 can be arranged and set on the battery 10 or a structure close to the battery 10, that is, the peripheral structure 60 of the battery 10 according to actual conditions, with various choices and strong flexibility.

[0180] The following will clearly illustrate the possibilities of the wiring position of the conductive circuit 42 through several specific embodiments. Among them, the possibility of the conductive circuit 42 being arranged in the peripheral structural member 60 will be illustrated by taking other structural members (such as the functional structure 50) arranged in the middle frame 21, the back cover 24, or between the middle frame 21 and the back cover 24 as an example. However, it should be understood that other structural members may not be limited to the functional structure 50, and the structural members located between the middle frame 21 and the back cover 24 can be regarded as other structural members referred to here, and the embodiments of the present application do not strictly limit this.

[0181] First embodiment:

[0182] Please refer to Figure 8 and Figure 9In the first embodiment of the present application, the conductive circuit 42 is fixed to the battery 10. It should be understood that since the conductive circuit 42 can be regarded as a very thin wire, its fixing form can be fixed to the target surface T located on the battery 10. In one possible embodiment, the conductive circuit 42 can be integrally formed with the housing 11 of the battery 10.

[0183] In this embodiment, the target surface T of the battery 10 is the inner surface 111 or the outer surface 112 of the housing 11. For example, the target surface T may be a large surface of the inner surface 111 of the housing 11, or the target surface T may be a large surface of the outer surface 112 of the housing 11.

[0184] For convenience of description, the width direction of the electronic device 100 is defined as the X axis, the length direction of the electronic device 100 is defined as the Y axis, and the thickness direction of the electronic device 100 is defined as the Z axis. The X axis, Y axis, and Z axis are perpendicular to each other.

[0185] Please refer to Figure 6 、 Figure 8 and Figure 9 The outer surface 112 of the outer shell 11 has two large surfaces. These two large surfaces are the two largest surfaces of the outer surface 112 of the outer shell 11, i.e., the two planes parallel to the XOY plane when the battery 10 is installed in the battery compartment 26. Specifically, when the battery 10 is connected to the battery compartment 26, one of the large surfaces of the outer surface 112 of the outer shell 11 is connected to the bottom surface 261 of the battery compartment 26 to ensure the stable installation of the battery 10, and the other large surface faces the rear cover 24.

[0186] Correspondingly, the inner surface 111 of the outer shell 11 also has two large surfaces. These two large surfaces of the inner surface 111 of the outer shell 11 are the two largest surfaces within the inner surface 111 of the outer shell 11, i.e., the two planes parallel to the XOY plane when the battery 10 is installed in the battery compartment 26. Specifically, when the battery 10 is connected to the battery compartment 26, one of the large surfaces of the inner surface 111 of the outer shell 11 faces the bottom surface 261 of the battery compartment 26, and the other large surface faces the rear cover 24.

[0187] When the electronic device 100 suffers external mechanical damage, the housing 20 of the electronic device 100 may be punctured, causing the outer shell 11 of the battery 10 to be easily damaged. Furthermore, the smaller surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11) are relatively stronger than the larger surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11). Therefore, in order to fully utilize the conductive circuit 42 to serve as an early warning of external damage to the battery 10, the conductive circuit 42 can be arranged on the larger surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11), which have relatively low strength.

[0188] In this embodiment, the coverage ratio of the conductive trace 42 to the target surface T can be within a range of 5% to 100% (inclusive), where the coverage ratio is the ratio of the cross-sectional area of ​​the conductive trace 42 parallel to the target surface T to the area of ​​the target surface T. In other words, the coverage ratio of the conductive trace 42 relative to the battery 10 is within a range of 5% to 100%.

[0189] See also Figure 11 In a specific application scenario, (a) represents the target surface T of the battery 10, with its area denoted as Sa. (b) represents the structural component of the electronic device 100, with its cross-sectional area parallel to the target surface T denoted as Sb. The shaded portion in (c) represents the portion of the structural component of the electronic device 100 that is not covered by the target surface T and is also the portion of the target surface T with relatively low structural strength, with its area denoted as Sc. In other words, the shaded portion represents the portion of the target surface T that needs to be preferentially covered by the conductive trace 42 for damage detection, with its area denoted as Sc.

[0190] Therefore, coverage ratio = (area of ​​target surface T - area of ​​target surface T covered by components of electronic device 100) / area of ​​target surface T = (Sa - Sb) / Sa = Sc / Sa. In this application scenario, the coverage ratio is approximately 10%.

[0191] See also Figure 12 In another specific application scenario, (d) represents the target surface T of the battery 10, with its area denoted as Sd. (e) represents the coil of the wireless charging coil, with its cross-sectional area parallel to the target surface T denoted as Se. The shaded portion in (f) represents the portion of the wireless charging coil that is not covered by the coil and is also the portion of the target surface T with relatively low structural strength, with its area denoted as Sf. In other words, the shaded portion represents the portion of the target surface T that the conductive trace 42 must prioritize for damage detection, with its area denoted as Sf.

[0192] Therefore, coverage ratio = (area of ​​target surface T - area of ​​target surface T covered by coil) / area of ​​target surface T = (Sd - Se) / Sd = Sf / Sd. In this application scenario, the coverage ratio is about 60%.

[0193] It is understood that the portion of the target surface T covered by the conductive trace 42 is the portion of the target surface T that can be inspected for damage. In actual applications, the target surface T may be partially covered by other structural components of the electronic device 100. The portion of the target surface T covered by other structural components of the electronic device 100 has relatively high structural strength. In other words, the portion of the target surface T not covered by other structural components of the electronic device 100 has relatively low structural strength. Therefore, the conductive trace 42 can preferentially cover the portion of the target surface T not covered by other structural components of the electronic device 100.

[0194] In conjunction with the above description, it should be understood that, ideally, the greater the coverage ratio of the conductive circuit 42 to the battery 10, the better. However, in actual applications, the coverage ratio of the conductive circuit 42 to the battery 10 will be adjusted accordingly with the specific application environment. In extreme cases, such as when the conductive circuit 42 covers the battery 10 at a minimum ratio (e.g., 5%), it will preferentially cover the portion of the target surface T with relatively low structural strength. Based on this, the coverage ratio of the conductive circuit 42 relative to the battery 10 will be flexibly adjusted according to the specific application environment, and it is only necessary to ensure that the battery 10 has the damage detection function. This embodiment does not impose strict restrictions on this.

[0195] The position of the conductive circuit 42 is clearly described above, and the specific structure of the conductive circuit 42 will be specifically described below.

[0196] Please refer to Figure 13 and Figure 14 The conductive circuit 42 includes a main circuit 421 and a first terminal 422 and a second terminal 423 formed by two ends of the main circuit 421 for connection.

[0197] It is understood that the shape of the main line 421 is the shape that the conductive line 42 as a whole can assume. For example, in this embodiment, the main line 421 can extend in a curved shape, thereby enabling the conductive line 42 as a whole to assume a curved wiring arrangement. Furthermore, because the conductive line 42 needs to connect to other components in the trauma detection circuit 40, the conductive line 42 must have an interface for connecting to the circuit. Therefore, the provision of the first terminal 422 and the second terminal 423 allows the conductive line 42 to have a terminal at each end, allowing the conductive line 42 as a whole to be quickly and conveniently connected to other components in the trauma detection circuit 40, thereby providing excellent connectivity.

[0198] In a possible implementation, the first wire end 422 and the second wire end 423 may be welded to connect the conductive circuit 42 to other components in the trauma detection circuit 40 .

[0199] Please refer to Figure 13 、 Figure 15 and Figure 16 It should be understood that the winding method of the main line 421 can be a planar single winding method, a planar double winding method, or a planar multi-winding method. Therefore, the winding method of the main line 421 can be selected according to actual conditions, which has high flexibility and a wide range of applications.

[0200] Specifically, a single-winding planar structure is formed by extending a conductive wire 424 in a continuous curve on the target surface T, with the ends of the conductive wire 424 forming a first terminal 422 and a second terminal 423 for connection, respectively. A double-winding planar structure is formed by extending two conductive wires 424 in parallel and synchronously on the target surface T, with the ends of the two conductive wires 424 on one side forming the first terminal 422, and the ends of the two conductive wires 424 on the other side forming the second terminal 423. A multi-winding planar structure is formed by extending two or more conductive wires 424 in parallel and synchronously on the target surface T, with the ends of the two or more conductive wires 424 on one side forming the first terminal 422, and the ends of the two conductive wires 424 on the other side forming the second terminal 423.

[0201] It can be understood that compared with the planar single-wrap type, the planar multi-wrap type and the planar double-wrap type have an increased number of conductive wires 424 and a certain spacing between adjacent conductive wires 424. As a result, when covering the target surface T of the same area, the number of turns of the conductive wires 424 will be relatively reduced, and the difficulty of processing and manufacturing will be relatively low, which is conducive to reducing processing costs and improving production efficiency.

[0202] In this embodiment, the line width of the conductive circuit 42 is in the range of 0.001mm to 1.5mm (including the end points), the line spacing is in the range of 0.001mm to 1.5mm (including the end points), and the thickness is in the range of 0.001mm to 0.5mm (including the end points).

[0203] Therefore, the conductive circuit 42 has the characteristic of dense circuit arrangement, so that when it covers the target surface T, the detection rate of the target surface T can be effectively guaranteed.

[0204] It is understood that when the main line 421 is formed by a conductive line 424 that is continuously curved and extended, the line spacing of the conductive line 42 can be understood as the distance between two adjacent curved segments of the conductive line 424. When the main line 421 is formed by multiple conductive lines 424 that are synchronously curved and extended side by side, the line spacing of the conductive line 42 can be understood as the distance between two adjacent conductive lines 424.

[0205] It should be noted that ideally, the smaller the spacing between the conductive traces 42, the better. However, in actual manufacturing, the smaller the spacing, the more complex the corresponding cost and process, and the greater the difficulty of manufacturing. Therefore, setting the spacing between the conductive traces 42 within the above range can fully consider cost and process, and has strong mass production, strong economic benefits, and good practicality.

[0206] Please refer to Figure 10 、 Figure 17 and Figure 18 In one possible embodiment, the outer contour of the conductive trace 42 is the same as the shape of the battery 10. Thus, the conductive trace 42 can fit the battery 10 as closely as possible, ensuring that the target surface T of the battery 10 can be accurately and effectively covered, thereby improving the detection rate of damage detection.

[0207] For example, Figure 10 As shown, the battery 10 may be a rectangular battery, and the main line 421 extends in a serpentine shape, thereby forming a conductive line 42 with a rectangular outer contour and a serpentine extension path. Alternatively, as Figure 17 As shown, the battery 10 may be an "L"-shaped battery, and the main line 421 is bent and extended in a curve, thereby forming a conductive line 42 with an "L"-shaped outer contour and a curved extension path. Alternatively, as Figure 18 As shown, the battery 10 may be a circular battery, and the main circuit 421 extends in a spiral shape, thereby forming a conductive circuit 42 with a circular outer contour and a spiral extension path.

[0208] It should be noted that the extension path of the main line 421 is not limited to serpentine and spiral shapes. It can also be a U-shape, or a combination of multiple U-shapes, serpentine and spiral shapes, or it can be extended in any combination of curves, straight lines, and oblique lines. This embodiment does not impose strict restrictions on this.

[0209] It is understood that the greater the coverage ratio of the conductive trace 42 relative to the battery 10, the larger the detection area that can be detected by the conductive trace 42. Therefore, considering the larger coverage ratio, the main trace 421 can not only present the structure with no intersections between traces as described above, but also present a grid-like structure with intersections between traces.

[0210] See also Figure 19 For example, main line 421 includes a first line 425 and a second line 426. The first line 425 and the second line 426 have the same shape and are staggered relative to each other. One end of the first line 425 forms a first terminal 422, and the other end of the first line 425 is connected to one end of the second line 426. The other end of the second line 426 forms a second terminal 423.

[0211] Thus, the first and second traces 425, 426 can be staggered so that the spacing between the first traces 425 accommodates the second traces 426, i.e., the main traces 421 present a grid-like structure with intersecting traces. This structure fully utilizes the spacing between the first and second traces 425, 426, allowing the conductive traces 42 to be arranged more densely due to the complementary gaps between the first and second traces 425, 426. This ensures reliable coverage of the target surface T, minimizes the possibility of missed detection due to incomplete coverage, and ensures more accurate and reliable detection.

[0212] It should be noted that the dimensions of the first and second traces 425, 426 can be identical or slightly different. For example, the spacing between the traces of the second traces 426 can be slightly greater than the spacing between the traces of the first traces 425. The main trace 421 can also include more traces, such as a third trace (not shown), and the first, second, and third traces 425, 426 can be staggered to further densely distribute the conductive traces 42. This embodiment does not impose strict limitations on this.

[0213] In this embodiment, the conductive trace 42 can be made of ink, conductive copper paste, or conductive silver paste. It should be understood that ink is relatively inexpensive. When mass-producing the battery 10, ink is preferred because it significantly reduces production costs, resulting in a low price and excellent economic benefits. Conductive copper paste and conductive silver paste have relatively low impedance and exhibit good toughness after curing, providing excellent bending resistance.

[0214] In addition, the processing technology of the conductive circuit 42 may include printing, etching, spraying, coating, laser cutting, vacuum coating and magnetron sputtering.

[0215] Therefore, the material of the conductive circuit 42 and the process of the conductive circuit 42 can be flexibly selected according to actual processing requirements, and this embodiment does not impose strict restrictions on this.

[0216] Due to the long-term use of electronic device 100, battery 10 will inevitably heat up. If a short circuit occurs in battery 10, it will also cause the battery 10 to heat up rapidly. Battery 10 heating can cause various types of accidents, including minor injuries such as leakage and deformation, but also major accidents such as explosions and splashing that can endanger the user. To ensure the user's personal safety, monitoring the temperature of battery 10 is crucial.

[0217] Therefore, please refer to Figure 20 and Figure 21 In this embodiment, the conductive circuit 42 not only has the function of trauma detection, but also has the function of temperature detection.

[0218] See also Figure 20 In one possible embodiment, the main circuit 421 is formed by splicing two metal wires 427 made of different conductive materials. Thus, the two metal wires 427 made of different conductive materials can form a thermocouple to detect the temperature of the battery 10.

[0219] It is understood that a thermocouple is a thermoelectric conversion structure designed based on a closed loop composed of two different conductive materials that can produce the Seebeck effect. In a thermocouple, the two conductive materials serve as two electrode wires, which are connected at one point and placed at this point as a measuring end in the temperature measurement environment of the target surface T of the battery 10. The unconnected ends of the two electrode wires serve as the first wire end 422 and the second wire end 423, respectively, and are connected to the trauma detection circuit 40. The temperature gradient between the measuring end and the first wire end 422 and the second wire end 423 will produce different voltage drops in the two materials. Since the two are connected at the measuring end, a potential difference will be generated at the first wire end 422 and the second wire end 423, resulting in current. The temperature of the battery 10 can then be determined through the functional relationship between the current and the temperature.

[0220] For example, a metal wire 427 with a positive polarity (anode) may form the first terminal 422, and its material may be nickel-chromium. A metal wire 427 with a negative polarity (anode) may form the second terminal 423, and its material may be nickel-silicon. Alternatively, a metal wire 427 with a positive polarity (anode) may form the first terminal 422, and its material may be pure copper. A metal wire 427 with a negative polarity (anode) may form the second terminal 423, and its material may be nickel-chromium.

[0221] See also Figure 21 In another possible embodiment, the main circuit 421 is composed of a metal wire 427 made of a single conductive material. Thus, the metal wire 427 made of a single different conductive material can form a thermal resistor to detect the temperature of the battery 10.

[0222] It's understood that the working principle of a thermal resistor is based on the property that the resistance of metal changes approximately proportionally with temperature. As the target surface T temperature of battery 10 changes, the resistance of the metal changes with temperature. Therefore, the temperature of battery 10 can be determined based on the metal's resistance and by comparing it with a scale.

[0223] Exemplarily, the material of the metal wire 427 includes platinum, nickel, or copper.

[0224] Based on the above description, the main circuit 421 is configured as a thermocouple or a thermistor to detect the temperature of the battery 10. This enables the conductive circuit 42 to have its own temperature measurement function and detect the temperature resistance of the battery 10, thereby ensuring the normal operation of the battery 10. That is, the conductive circuit 42 can have the dual functions of trauma detection and temperature measurement, with diverse performance, strong practicality, and a wide range of applications.

[0225] It should be understood that monitoring the surface temperature of the battery 10 through the conductive trace 42 attached to the target surface T of the battery 10 can more accurately measure the actual temperature of the battery 10 than monitoring using a protective plate (not shown) within the battery 10. This means that, in addition to detecting external damage, the conductive trace 42 also provides the added benefit of conventionally detecting the temperature of the battery 10. The conductive trace 42 can detect the battery 10 temperature by detecting the voltage at the connection point and deriving the surface temperature of the battery 10 based on the corresponding relationship between voltage and temperature.

[0226] For example, when the battery 10 is not damaged and operates normally, the detected surface temperature of the battery 10 is not higher than 60°C. When the battery 10 is damaged, the detected surface temperature of the battery 10 is higher than 70°C or 80°C. At this time, the battery 10 has a tendency to thermal runaway, and the aforementioned related restriction processing can be executed by the control unit 45.

[0227] It should be understood that in this embodiment, the trauma detection circuit 40 can be fully integrated into the battery 10. Specifically, the voltage divider resistor 41 and the processing circuit 43 are provided on the protection board 13, and the conductive circuit 42 is provided on the outer shell 11 of the battery 10, so that the battery 10 can have its own trauma detection function. Compared with the single function of the battery 10 in the traditional solution, the battery 10 provided in this embodiment has diversified structural performance, which enables the battery 10 to have the dual functions of energy storage and trauma detection, and has strong practicality and a wide range of applications.

[0228] Thus, by providing a conductive circuit 42 and arranging the conductive circuit 42 on the outer shell 11, when the battery 10 is subjected to external mechanical damage, the conductive circuit 42 will be damaged in advance compared to the outer shell 11. That is, the detection of external damage to the battery 10 by the processing circuit 43 is an indirect physical detection of the battery 10 based on the on-off state of the conductive circuit 42. Compared with the traditional solution, which takes a lot of time and power consumption, the detection mechanism of determining whether the battery 10 has external damage by detecting the electrochemical characteristics of the battery 10 is different. By detecting whether the conductive circuit 42 is damaged and determining whether the battery 10 has external damage, on the one hand, it is possible to predict in advance whether the battery 10 has safety hazards when the conductive circuit 42 is damaged and the outer shell 11 of the battery 10 is about to suffer mechanical damage, and then it can buy a certain amount of time for the user to take subsequent relevant measures such as sending the battery 10 for repair or replacement, effectively preventing battery 10 safety accidents and ensuring the personal safety and property safety of the user. On the other hand, the arrangement of the conductive circuit 42 is simple and reliable, and can quickly and conveniently achieve the effect of real-time detection in the battery without spending a lot of time, occupying a lot of space and consuming power. It can effectively reduce costs, is conducive to the development trend of battery miniaturization, and has strong practicality and reliability.

[0229] Second embodiment:

[0230] Please refer to Figure 13 and Figure 22 In the second embodiment of the present application, the same contents as those in the first embodiment are not repeated here. Unlike the first embodiment, the conductive trace 42 is fixed to the functional structure 50. It should be understood that since the conductive trace 42 can be considered a very thin wire, it can be fixed to a target surface T located on the functional structure 50. Therefore, the target surface T is the surface of the functional structure 50.

[0231] In this embodiment, the functional structure 50 is a wrapping film that is coated on the outer surface 112 of the outer shell 11 of the battery 10. The wrapping film is used to facilitate the removal of the battery 10 from the battery compartment 26. Specifically, the wrapping film can be an integrated film layer that can form a good integrated adhesion effect with the outer surface 112 of the outer shell 11 of the battery 10. In addition, an adhesive substance is provided on the wrapping film, and the adhesive substance is used to reliably install the battery 10 in the battery compartment 26. As a result, the wrapping film can isolate the battery 10 from the adhesive substance, preventing the battery 10 from directly contacting the adhesive substance and causing deformation, damage or wrinkling of the surface of the outer shell 11, so that when the battery 10 is removed from the battery compartment 26, it is easy to peel off the wrapping film and take out the battery 10. In one possible embodiment, the material of the wrapping film may include epoxy material, polyurethane or polypropylene. The adhesive substance may be glue or double-sided tape, which facilitates fixing the battery 10 in the battery compartment 26.

[0232] Based on the above description, the surface of the functional structure 50 is also the surface of the wrapping film. In other words, the target surface T is the surface of the wrapping film. Specifically, the target surface T can be the surface of the wrapping film facing the battery 10, or the target surface T can be the surface of the wrapping film facing away from the battery 10.

[0233] It can be understood that in actual applications, the wrapping film can cover the two large surfaces of the outer surface 112 of the outer shell 11 and the two side surfaces connecting the two large surfaces (two surfaces parallel to the YOZ plane), or the wrapping film can only cover the two large surfaces of the outer surface 112 of the outer shell 11, or the wrapping film can also cover any three of the two large surfaces of the outer surface 112 of the outer shell 11 and the two side surfaces connecting the two large surfaces. It is only necessary to ensure that at least part of the fireproof film is located between the battery 10 and the back cover 24. This embodiment does not impose any specific restrictions on this.

[0234] When the electronic device 100 suffers external mechanical damage, the housing 20 of the electronic device 100 may be punctured, causing the outer shell 11 of the battery 10 to be easily damaged. Furthermore, the smaller surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11) are relatively stronger than the larger surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11). Therefore, in order to fully enable the conductive circuit 42 to play the role of warning the battery 10 of external damage, the conductive circuit 42 can be arranged corresponding to the larger surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11) with relatively low strength.

[0235] That is, the conductive circuit 42 may be provided on the surface of the wrapping film at a portion corresponding to the large surface of the housing 11 .

[0236] Based on the above description, in this embodiment, the conductive circuit 42 is integrated on the wrapping film. On the one hand, due to the thin thickness of the wrapping film, it can be as close as possible to the battery 10, ensuring the accuracy of the external damage detection of the battery 10. On the other hand, since the wrapping film facilitates the functional use of disassembling the battery 10, setting the conductive circuit 42 thereon can diversify the performance of the wrapping film, reduce the adverse effects on other structural components of the electronic device 100 caused by setting it thereon, and the layout is reasonable.

[0237] Third embodiment:

[0238] Please refer to Figure 13 and Figure 23In the third embodiment of the present application, the same contents as those in the first embodiment are not repeated here. Unlike the first embodiment, the conductive trace 42 is fixed to the functional structure 50. It should be understood that since the conductive trace 42 can be considered a very thin wire, it can be fixed to a target surface T located on the functional structure 50. Therefore, the target surface T is the surface of the functional structure 50.

[0239] In this embodiment, the functional structure 50 is a fireproof film covering the outer surface 112 of the housing 11 of the battery 10, and at least a portion of the fireproof film is located between the battery 10 and the rear cover 24. In other words, the fireproof film at least covers the large surface of the outer surface 112 of the housing 11 away from the battery compartment 26. For example, the fireproof film can be provided on the large surface of the outer surface 112 of the housing 11 away from the battery compartment 26.

[0240] Thus, the fireproof film can isolate the battery 10 from the electronic device 100. Thus, when thermal runaway inside the battery 10 causes a fire in the battery 10, the fireproof film can prevent flames from escaping the battery 10. This minimizes the possibility of the flame spreading and damaging the internal components of the electronic device 100 when the battery 10 catches fire, thus providing good protection for both the battery 10 and the electronic device 100. In one possible embodiment, the fireproof film is made of antimony trioxide (Sb2O3) and a halogen compound.

[0241] Based on the above description, the surface of the functional structure 50 is also the surface of the fireproof film. In other words, the target surface T is the surface of the fireproof film. Specifically, the target surface T can be the surface of the fireproof film facing the battery 10, or the target surface T can also be the surface of the fireproof film facing away from the battery 10.

[0242] When the electronic device 100 suffers external mechanical damage, the housing 20 of the electronic device 100 may be punctured, causing the outer shell 11 of the battery 10 to be easily damaged. Furthermore, the smaller surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11) are relatively stronger than the larger surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11). Therefore, in order to fully enable the conductive circuit 42 to play the role of warning the battery 10 of external damage, the conductive circuit 42 can be arranged corresponding to the larger surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11) with relatively low strength.

[0243] That is, the conductive circuit 42 can be provided in a portion of the surface of the fireproof film corresponding to the large surface of the outer shell 11 .

[0244] Based on the above description, in this embodiment, the conductive circuit 42 is integrated on the fireproof film. On the one hand, due to the thinness of the fireproof film, it can be as close to the battery 10 as possible to ensure the accuracy of the external damage detection of the battery 10. On the other hand, due to the functional purpose of the fireproof film to prevent the flame from ejecting from the battery 10, setting the conductive circuit 42 thereon can diversify the performance of the fireproof film, reduce the adverse effects on other structural parts of the electronic device 100 caused by being set on other structural parts, and the layout is reasonable.

[0245] Fourth embodiment:

[0246] Please refer to Figure 2 and Figure 24 In the fourth embodiment of the present application, the same contents as those in the first embodiment are not repeated here. Unlike the first embodiment, the conductive trace 42 is fixed to the functional structure 50. It should be understood that since the conductive trace 42 can be considered a very thin wire, it can be fixed to a target surface T located on the functional structure 50. Therefore, the target surface T is the surface of the functional structure 50.

[0247] In this embodiment, the functional structure 50 is a heat sink located between the battery 10 and the rear cover 24. Specifically, the heat sink can cover the battery 10 and extend from the mainboard 30 to the small board. The heat sink can evenly dissipate heat from the mainboard 30 to the interior space of the electronic device 100, thereby dissipating heat from the mainboard 30. In one possible embodiment, the heat sink can cover the outer surface 112 of the housing 11 away from the battery compartment 26. The heat sink is made of graphite.

[0248] Based on the above description, the surface of the functional structure 50 is also the surface of the heat sink. In other words, the target surface T is the surface of the heat sink. Specifically, the target surface T can be the surface of the heat sink facing the battery 10, or the target surface T can also be the surface of the heat sink facing away from the battery 10.

[0249] When the electronic device 100 suffers external mechanical damage, the housing 20 of the electronic device 100 may be punctured, causing the outer shell 11 of the battery 10 to be easily damaged. Furthermore, the smaller surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11) are relatively stronger than the larger surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11). Therefore, in order to fully enable the conductive circuit 42 to play the role of warning the battery 10 of external damage, the conductive circuit 42 can be arranged corresponding to the larger surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11) with relatively low strength.

[0250] That is, the conductive circuit 42 may be disposed on a portion of the surface of the heat sink corresponding to the large surface of the housing 11 .

[0251] Based on the above description, in this embodiment, the conductive circuit 42 is integrated on the heat sink. On the one hand, due to the thin thickness of the heat sink, it can be as close to the battery 10 as possible, ensuring the accuracy of the damage detection of the battery 10. On the other hand, due to the functional purpose of the heat sink to dissipate heat, setting the conductive circuit 42 thereon can diversify the performance of the heat sink, reduce the adverse effects on other structural components of the electronic device 100 caused by being set on other structural components, and the layout is reasonable.

[0252] Fifth embodiment:

[0253] Please refer to Figure 2 and Figure 25 In the fifth embodiment of the present application, the same contents as those in the first embodiment are not repeated here. Unlike the first embodiment, the conductive trace 42 is fixed to the functional structure 50. It should be understood that since the conductive trace 42 can be considered a very thin wire, it can be fixed to a target surface T located on the functional structure 50. Therefore, the target surface T is the surface of the functional structure 50.

[0254] In this embodiment, the functional structure 50 is a decorative film located between the battery 10 and the back cover 24 . Specifically, the decorative film may be attached to the surface of the back cover 24 facing the battery 10 .

[0255] It is understood that when the back cover 24 is made of glass, a decorative film is applied to the back cover 24 to enhance its aesthetics. The decorative film can provide the back cover 24 with a variety of visual effects, such as color and light and shadow. For example, the decorative film can be a glare film, thereby creating a gradient and glare texture, thereby enhancing the visual experience of the electronic device 100.

[0256] Based on the above description, the surface of the functional structure 50 is also the surface of the decorative film. In other words, the target surface T is the surface of the decorative film. Specifically, the target surface T can be the surface of the decorative film facing the battery 10, or the target surface T can also be the surface of the decorative film facing the back cover 24.

[0257] When the electronic device 100 suffers external mechanical damage, the housing 20 of the electronic device 100 may be punctured, causing the outer shell 11 of the battery 10 to be easily damaged. Furthermore, the smaller surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11) are relatively stronger than the larger surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11). Therefore, in order to fully enable the conductive circuit 42 to play the role of warning the battery 10 of external damage, the conductive circuit 42 can be arranged corresponding to the larger surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11) with relatively low strength.

[0258] That is, the conductive circuit 42 may be provided on the surface of the decorative film at a portion corresponding to the large surface of the housing 11 .

[0259] Based on the above description, in this embodiment, the conductive circuit 42 is integrated on the decorative film. On the one hand, due to the thinness of the decorative film, it can be as close to the battery 10 as possible, ensuring the accuracy of the damage detection of the battery 10. On the other hand, since the decorative film can make the back cover 24 present a functional purpose with rich visual effects, setting the conductive circuit 42 thereon can diversify the performance of the decorative film, reduce the adverse effects on other structural components of the electronic device 100 caused by setting it thereon, and the layout is reasonable.

[0260] Sixth embodiment:

[0261] Please refer to Figure 7 、 Figure 13 and Figure 26 In the sixth embodiment of the present application, the same contents as those in the first embodiment are not repeated here. Unlike the first embodiment, the conductive trace 42 is fixed to the functional structure 50. It should be understood that since the conductive trace 42 can be considered a very thin wire, it can be fixed to a target surface T located on the functional structure 50. Therefore, the target surface T is the surface of the functional structure 50.

[0262] In this embodiment, the functional structure 50 is a wireless charging coil located between the battery 10 and the back cover 24. Specifically, the wireless charging coil includes a body 51 and a BTB (Board to Board) connector 52 connected to one end of the body. The body is located on the side of the battery 10 facing away from the battery compartment 26. The wireless charging coil is connected to the mainboard 30 via the BTB connector 52.

[0263] It can be understood that the electronic device 100 can have a wired charging function, that is, the battery 10 can be charged by a wired charging device (such as a power adapter), and can also have a wireless charging function, that is, the battery 10 can be charged by a wireless charging device, specifically, the wireless charging coil in the electronic device 100 receives the wireless charging input of the internal coil in the wireless charging device.

[0264] Based on the above description, the surface of the functional structure 50 is also the surface of the wireless charging coil. In other words, the target surface T is the surface of the wireless charging coil. Specifically, the target surface T can be the surface of the wireless charging coil facing the battery 10.

[0265] It should be noted that the target surface T can only be the surface with the wireless charging coil facing the battery 10, and cannot be the surface with the wireless charging coil facing away from the battery 10. This effectively avoids the problem of reduced wireless charging efficiency due to obstruction by the conductive trace 42.

[0266] Because the first and second terminals 422, 423 of the conductive trace 42 need to be connected to the motherboard 30, and the BTB terminal 52 of the wireless charging coil has unused pins, the first and second terminals 422, 423 can utilize the unused pins of the BTB terminal 52 to connect to the motherboard 30. In other words, the conductive trace 42 and the wireless charging coil can share a single BTB terminal 52, reducing the material cost and space required to connect the first and second terminals 422, 423 to the motherboard 30, thereby facilitating miniaturization of the electronic device 100.

[0267] When the electronic device 100 suffers external mechanical damage, the housing 20 of the electronic device 100 may be punctured, causing the outer shell 11 of the battery 10 to be easily damaged. Furthermore, the smaller surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11) are relatively stronger than the larger surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11). Therefore, in order to fully enable the conductive circuit 42 to play the role of warning the battery 10 of external damage, the conductive circuit 42 can be arranged corresponding to the larger surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11) with relatively low strength.

[0268] That is, the conductive circuit 42 may be provided on the surface of the wireless charging coil at a portion corresponding to the large surface of the housing 11 .

[0269] Based on the above description, in this embodiment, the conductive circuit 42 is integrated on the wireless charging coil. On the one hand, due to the thin thickness of the wireless charging coil, it can be as close as possible to the battery 10, ensuring the accuracy of the damage detection of the battery 10. On the other hand, since the wireless charging coil can enable the electronic device 100 to have the functional use of wireless charging function, setting the conductive circuit 42 thereon can diversify the performance of the wireless charging coil, reduce the adverse effects on other structural components of the electronic device 100 caused by setting it on other structural components, and achieve a reasonable layout.

[0270] Seventh embodiment:

[0271] Please refer to Figure 2 、 Figure 26 and Figure 27 In the seventh embodiment of the present application, the same contents as those in the second to sixth embodiments are not repeated. The difference from the second to sixth embodiments is that the number of functional structures 50 is not one but multiple, and the types of the multiple functional structures 50 are different. The multiple functional structures 50 are stacked in sequence, and the target surface T is the surface of one of the functional structures 50.

[0272] Specifically, the types of the multiple functional structures 50 can refer to the wrapping film, fireproof film, heat sink, decorative film, and wireless charging coil described in the second to sixth embodiments. The number of functional structures 50 can be multiple of the wrapping film, fireproof film, heat sink, decorative film, and wireless charging coil. For example, the number of functional structures 50 can be two, namely a heat sink and a wireless charging coil. The heat sink is located between the battery 10 and the wireless charging coil, and the wireless charging coil is located between the heat sink and the back cover 24. In this way, the battery 10, heat sink, wireless charging coil, and back cover 24 are stacked in sequence, and the target surface T can be the surface of either the heat sink or the wireless charging coil.

[0273] In one specific application scenario, there are five functional structures 50 , namely, a wrapping film, a fireproof film, a heat sink, a decorative film, and a wireless charging coil. The outer surface 112 of the battery 10's housing 11 is sequentially wrapped with the wrapping film and the fireproof film. The heat sink is positioned between the battery 10 (wrapped in the wrapping film and the fireproof film) and the wireless charging coil. The wireless charging coil is positioned between the heat sink and the decorative film, and the decorative film is positioned between the wireless charging coil and the back cover 24. Thus, the heat sink, wireless charging coil, and decorative film are sequentially stacked between the battery 10 (wrapped in the wrapping film and the fireproof film) and the back cover 24. The target surface T can be the surface of either the heat sink or the wireless charging coil.

[0274] It should be understood that there are many possibilities for the number and combination of the functional structures 50. The positional relationship of each functional structure 50 in any combination can refer to the above-mentioned application scenarios and will not be listed one by one here.

[0275] Based on the above description, in this embodiment, the conductive circuit 42 can be integrated on the surface of any functional structure 50. On the one hand, the selection is flexible and the application range is wide. Moreover, due to the thin thickness of the functional structure 50, it can be as close to the battery 10 as possible to ensure the accuracy of the damage detection of the battery 10. On the other hand, since each functional structure 50 has a unique functional use, setting the conductive circuit 42 thereon can diversify the performance of the functional structure 50, reduce the adverse effects on other structural parts of the electronic device 100 caused by being set on other structural parts, and the layout is reasonable.

[0276] Eighth embodiment:

[0277] See also Figure 28 In the eighth embodiment of the present application, the same contents as those in the first embodiment are not repeated here. Unlike the first embodiment, the conductive circuit 42 is fixed to the middle frame 21. It should be understood that since the conductive circuit 42 can be considered a very thin wire, it can be fixed to the target surface T located on the middle frame 21.

[0278] Specifically, the battery compartment 26 is formed on the side of the middle frame 21 facing the rear cover 24. The battery compartment 26 includes a bottom surface 261, which is the surface of the battery compartment 26 that connects to the battery 10. Therefore, the conductive trace 42 can be disposed on the bottom surface 261 of the battery compartment 26 to achieve close contact with the battery 10. In other words, the target surface T is the bottom surface 261 of the battery compartment 26.

[0279] When the electronic device 100 suffers external mechanical damage, the middle frame 21 of the electronic device 100 may be punctured, causing the outer shell 11 of the battery 10 to be easily damaged. Furthermore, the smaller surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11) are relatively stronger than the larger surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11). Therefore, in order to fully enable the conductive circuit 42 to serve as an early warning of external damage to the battery 10, the conductive circuit 42 can be arranged corresponding to the larger surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11), which have relatively low strength.

[0280] That is, the conductive circuit 42 may be disposed on a portion of the bottom surface 261 of the battery compartment 26 corresponding to the larger surface of the housing 11 .

[0281] Based on the above description, in this embodiment, the conductive circuit 42 is integrated on the bottom surface 261 of the battery compartment 26. On the one hand, it can be as close to the battery 10 as possible to ensure the accuracy of the external damage detection of the battery 10. On the other hand, since the battery compartment 26 can be used to install the functional purpose of the battery 10, setting the conductive circuit 42 thereon can diversify the performance of the battery compartment 26, reduce the adverse effects on other structural parts of the electronic device 100 caused by being set on other structural parts, and the layout is reasonable.

[0282] Ninth embodiment:

[0283] Please refer to Figure 29 and Figure 30 In the ninth embodiment of the present application, the same contents as those in the first embodiment are not repeated here. However, the difference from the first embodiment is that the conductive circuit 42 is fixed to the rear cover 24. It should be understood that since the conductive circuit 42 can be regarded as a very thin wire, it can be fixed to the target surface T located on the rear cover 24, or the conductive circuit 42 can be clamped in the rear cover 24.

[0284] See also Figure 29 In one possible embodiment, the conductive trace 42 may be disposed on the surface of the rear cover 24 facing the battery 10 to achieve close contact with the battery 10 . In other words, the target surface T is the surface of the rear cover 24 facing the battery 10 .

[0285] See also Figure 30 In another possible embodiment, the back cover 24 includes a first cover 241 and a second cover 242, with the conductive circuit 42 sandwiched between the first cover 241 and the second cover 242. Thus, the back cover 24 can cover the conductive circuit 42, preventing it from being scratched, broken, or peeled, thereby improving the reliability of the conductive circuit 42. For example, the first cover 241 is the portion of the back cover 24 that forms the structure of the housing 20, and the second cover 242 is the portion of the back cover 24 that faces the battery 10.

[0286] When the electronic device 100 suffers external mechanical damage, the back cover 24 of the electronic device 100 may be punctured, causing the outer shell 11 of the battery 10 to be easily damaged. Furthermore, the smaller surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11) are relatively stronger than the larger surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11). Therefore, in order to fully utilize the conductive circuit 42 to serve as a warning of external damage to the battery 10, the conductive circuit 42 can be arranged corresponding to the larger surfaces of the outer shell 11 of the battery 10 (including the inner surface 111 and outer surface of the outer shell 11), which have relatively low strength.

[0287] That is, the conductive trace 42 may be disposed on the surface of the rear cover 24 facing the battery 10 or in the rear cover 24 .

[0288] Based on the above description, in this embodiment, the conductive circuit 42 is integrated on the back cover 24. On the one hand, it can be as close to the battery 10 as possible, ensuring the accuracy of the battery 10 damage detection. At the same time, since the structural strength of the back cover 24 is greatly reduced when it is damaged, it cannot provide a guarantee for the safety performance of the battery 10. Integration on the back cover 24 can also provide an early warning when the back cover 24 is broken, allowing the user to send the electronic device 100 for repair as soon as possible. On the other hand, since the back cover 24 can form the functional purpose of the housing structure of the electronic device 100, the arrangement of the conductive circuit 42 thereon can diversify the performance of the back cover 24, reduce the adverse effects on other structural components of the electronic device 100 caused by the arrangement on other structural components, and have a reasonable layout.

[0289] With reference to the several specific embodiments described above, it should be understood that the conductive circuit 42 in the embodiments of the present application has a variety of possible wiring positions, a variety of choices, and strong flexibility. It can be arranged and set on the battery 10 and / or the peripheral structural member 60 near the battery 10 according to actual conditions.

[0290] See also Figure 31 The present application also provides a method for detecting damage to a battery 10, which is applied to the electronic device 100 described above. The method includes at least the following steps:

[0291] S100 : Detecting a voltage value at a connection point where the voltage-dividing resistor 41 and the conductive line 42 are connected.

[0292] S200: Determine whether the battery 10 has any damage based on the voltage value at the connection point.

[0293] Specifically, when the detected connection point voltage value is less than a preset threshold, it is determined that the battery 10 has no external damage.

[0294] When the detected connection point voltage value is greater than or equal to a preset threshold, it is determined that there is damage to the battery 10. Therefore, relevant strategies can be implemented to ensure the personal safety of the user.

[0295] In a possible implementation, when it is determined that the battery 10 has external damage, the charging capacity of the battery 10 is controlled to be less than or equal to 50%.

[0296] In another possible real-time manner, when it is determined that the battery 10 has external damage, a prompt message is popped up through the display screen 22, and the prompt message is used to instruct the user to stop using the electronic device 100 or send the electronic device 100 for repair.

[0297] The above is a detailed introduction to the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its central idea. At the same time, for those skilled in the art, according to the ideas of the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An electronic device, characterized in that: The electronic device comprises: Battery; Motherboard; A wireless charging coil comprising a body and a terminal connected to one end of the body; the body is located on one side of the battery; the terminal is connected to the main board; the wireless charging coil is used to charge the battery; A trauma detection circuit, the trauma detection circuit comprising a conductive circuit and a processing circuit; The conductive circuit is provided on the surface of the wireless charging coil facing the battery, and the conductive circuit is connected to the mainboard through the terminal; The processing circuit is used to detect the conductivity of the conductive circuit, and the conductivity of the conductive circuit is used to determine whether the battery has external damage.

2. The electronic device according to claim 1, wherein The electronic device comprises: A housing, comprising a middle frame and a back cover located on one side of the middle frame; The battery is fixed between the middle frame and the back cover; The orthographic projection of the conductive circuit on the rear cover at least partially falls within the range of the orthographic projection of the battery on the rear cover.

3. The electronic device according to claim 2, wherein: A battery compartment is provided on a side of the middle frame facing the back cover, and the battery is connected to the battery compartment; The body is located between the battery and the back cover.

4. The electronic device according to claim 1, wherein The coverage ratio of the conductive circuit relative to the battery is in the range of 5% to 100%.

5. The electronic device according to claim 1, wherein The outer contour of the conductive circuit is the same as that of the battery.

6. The electronic device according to claim 1, wherein The line width range and the line spacing range of the conductive circuit are both within the range of 0.001mm to 1.5mm.

7. The electronic device according to claim 1, wherein: The terminal is a BTB terminal.

8. The electronic device according to any one of claims 1 to 7, wherein: The conductive circuit includes a main circuit and a first line end and a second line end formed by two ends of the main circuit for connection, and the main circuit is in a curved shape.

9. The electronic device according to claim 8, wherein The terminal includes a plurality of pins, and the first wire end and the second wire end are connected to the mainboard through some of the pins.

10. The electronic device according to claim 8, wherein The extension path of the main line includes any one or more combinations of a U-shaped, a serpentine, and a spiral.

11. The electronic device according to claim 8, wherein The main line is formed by extending a conductive line in a continuous curve; or, The main circuit is formed by at least two conductive lines extending in parallel and synchronously in a curved shape.

12. The electronic device according to claim 8, wherein The main circuit is a thermocouple composed of two metal wires made of different conductive materials; or The main circuit is a thermal resistor composed of metal wires made of a single conductive material.

13. The electronic device according to claim 8, wherein The main circuit includes a first circuit and a second circuit, the first circuit and the second circuit have the same shape and are staggered with each other; One end of the first line forms the first line end, the other end of the first line is connected to one end of the second line, and the other end of the second line forms the second line end.

14. The electronic device according to claim 2, wherein: The trauma detection circuit further includes a voltage divider resistor, and the processing circuit includes an analog-to-digital converter and a control unit; One end of the voltage divider resistor is connected to the power supply voltage, the other end of the voltage divider resistor is connected to the first end of the conductive circuit and one end of the analog-to-digital converter, the other end of the analog-to-digital converter is connected to the control unit, and the second end of the conductive circuit is grounded; The analog-to-digital converter is used to detect the voltage value of the connection point where the voltage-dividing resistor and the conductive line are connected; The control unit is used to determine whether the battery has external damage according to the voltage value of the connection point detected by the analog-to-digital converter.

15. The electronic device according to claim 14, wherein: The voltage divider resistor and the processing circuit are arranged on the main board; or, The battery includes a shell and a protection board arranged inside the shell. The voltage dividing resistor and the processing circuit are arranged on the protection board.

16. The electronic device according to claim 14 or 15, characterized in that: When the conductive circuit is normally conductive, the voltage value of the connection point detected by the analog-to-digital converter is less than a preset threshold value; when the conductive circuit is abnormal, the voltage value of the connection point detected by the analog-to-digital converter is greater than or equal to the preset threshold value; The control unit is configured to determine that the battery has external damage when the voltage value of the connection point detected by the analog-to-digital converter is greater than or equal to a preset threshold.

17. The electronic device according to claim 16, wherein: The electronic device further includes a display screen, which is fixed to a side of the middle frame away from the back cover and is electrically connected to the control unit, wherein the control unit is configured to: When it is determined that the battery has external damage, a prompt message is popped up on the display screen, and the prompt message is used to remind the user to shut down the electronic device or stop using the electronic device and send the electronic device for repair.

18. The electronic device according to claim 16, wherein: The control unit is used for: When it is determined that the battery has external damage, the charging capacity of the battery is controlled to be less than or equal to 50%.

19. A battery damage detection method, applied to an electronic device, the electronic device comprising a housing, a battery disposed within the housing, and a damage detection circuit, the damage detection circuit comprising a conductive circuit and a voltage divider resistor connected to the conductive circuit, wherein the orthographic projection of the conductive circuit on the housing at least partially falls within the range of the orthographic projection of the battery on the housing, characterized in that: The method comprises: Detecting a voltage value at a connection point where the voltage-dividing resistor and the conductive circuit are connected; It is determined whether the battery has external damage according to the voltage value of the connection point.

20. The battery damage detection method according to claim 19, wherein determining whether the battery has damage according to the voltage value of the connection point comprises: When the detected voltage value of the connection point is greater than or equal to a preset threshold, determining that the battery has external damage; When the detected voltage value of the connection point is less than the preset threshold, it is determined that the battery has no external damage.

21. The battery damage detection method according to claim 20, wherein one end of the voltage divider resistor is connected to the power supply voltage, and the other end of the voltage divider resistor is connected to the conductive circuit; The preset threshold is 0.5 times the power supply voltage.

22. The battery damage detection method according to claim 19 or 20, further comprising: When it is determined that the battery has external damage, Controlling the charging capacity of the battery to be less than or equal to 50%; and / or reducing the charging current and / or charging cut-off voltage of the battery, or prohibiting the electronic device from charging the battery; and / or Activate battery protection mode, which is a mode that restricts the user from using certain functions or applications; and / or A prompt instruction is sent to a server, where the prompt instruction is used to notify after-sales service personnel that the battery of the electronic device has external damage.

23. The battery damage detection method according to any one of claims 19 to 22, wherein the electronic device further comprises a display screen, the display screen being fixed to the housing, and the method further comprising: When it is determined that the battery has external damage, a prompt message is popped up on the display screen, and the prompt message is used to remind the user to shut down the electronic device or stop using the electronic device and send the electronic device for repair.

Images