Electronic devices and batteries

Abstract

The present application provides an electronic device and a battery. The electronic device includes: a housing, the housing includes a middle frame and a back cover located on one side of the middle frame; a battery, the battery is fixed between the middle frame and the back cover; a trauma detection circuit, the trauma detection circuit includes a conductive circuit and a processing circuit; the conductive circuit is arranged on the battery and / or on the peripheral structural parts 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, and the peripheral structural parts include the middle frame, the back cover or other structural parts between the middle frame and the back cover; the processing circuit is used to detect the conduction of the conductive circuit, and judge whether the battery has trauma based on the conduction of the conductive circuit. The technical solution of the present application can detect whether the battery is traumatized when the battery is subjected to external mechanical stress to ensure the safety of the user.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an electronic device and a battery. Background Art

[0002] As electronic devices such as mobile phones, laptops, and tablets become more and more integrated into people's lives, the safety of the lithium batteries they contain is also attracting more and more attention. At present, when the battery is at low power and suffers instantaneous mechanical damage such as puncture or cut, the battery parameters may not be obviously abnormal, but users will have greater safety hazards if they continue to charge or use the battery. How to detect whether the battery is damaged when it is subjected to external mechanical stress to ensure the safety of users is a topic that the industry continues to explore. Summary of the invention

[0003] The 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, so as to ensure the safety of the user.

[0004] In a first aspect, the present application provides an electronic device, the electronic device comprising:

[0005] A housing, the housing comprising a middle frame and a back cover located on one side of the middle frame;

[0006] A battery, wherein the battery is fixed between the middle frame and the back cover;

[0007] A trauma detection circuit, the trauma detection circuit comprising a conductive circuit and a processing circuit;

[0008] The conductive circuit is arranged 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, and the peripheral structural member includes the middle frame, the back cover, or other structural members between the middle frame and the back cover;

[0009] 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.

[0010] By setting a conductive circuit, and setting the conductive circuit on the battery and / or a structure close to the battery, that is, the peripheral structure of the battery, and making at least part of the conductive circuit overlap with the battery, when the electronic device suffers external mechanical damage, the conductive circuit will be damaged in advance compared to the battery. That is, the detection of battery trauma by the processing circuit is a physical indirect detection of the battery based on the on-off of the conductive circuit. Compared with the traditional scheme, it takes a lot of time and power consumption to detect the detection mechanism of whether the battery has trauma by detecting the electrochemical characteristics of the battery. By detecting whether the conductive circuit is damaged to determine whether the battery has trauma, on the one hand, it can be predicted in advance that the battery has safety hazards when the conductive circuit is damaged and the battery is about to suffer mechanical trauma, and then it can be used for the user to take related measures such as sending the electronic device for repair to buy a certain amount of time, effectively prevent battery safety accidents, and ensure the personal safety and property safety of the user. On the other hand, the layout of the conductive circuit is simple and reliable, and the effect of real-time detection in the whole machine can be quickly and conveniently achieved without spending a lot of time, occupying a lot of space and power consumption, which can effectively reduce costs, is conducive to the development trend of miniaturization of electronic equipment, and has strong practicality and reliability.

[0011] In a possible implementation manner, the other structural member is a functional structure, at least part of the functional structure 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;

[0012] The conductive circuit is arranged on a target surface, and the target surface is the inner surface of the shell, or the target surface is the outer surface of the shell, or the target surface is the surface of the functional structure, or the target surface is the surface of the back cover facing the battery, or the target surface is the bottom surface of the battery compartment.

[0013] Therefore, the wiring position of the conductive circuit can be arranged and set on the battery or the structure close to the battery, that is, the peripheral structure of the battery according to the actual situation, with diverse choices and strong flexibility.

[0014] 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.

[0015] Thus, the conductive circuit can be integrated on the back cover. On the one hand, it can be as close to the battery as possible to ensure the accuracy of the battery damage detection. At the same time, since the structural strength has been greatly reduced when the back cover is damaged, it cannot provide a guarantee for the safety performance of the battery. Integration on the back cover can also provide an early warning when the back cover is broken, so that the user can send the electronic device for repair as soon as possible. On the other hand, since the back cover can form the functional purpose of the shell structure of the electronic device, setting the conductive circuit on it can diversify the performance of the back cover, reduce the adverse effects on other structural parts of the electronic device caused by setting it on other structural parts, and the layout is reasonable.

[0016] In a possible implementation manner, the number of the functional structure is one; or,

[0017] The number of the functional structures is multiple 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.

[0018] 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 the layout is reasonable.

[0019] In a possible implementation, the types of functional structures include wrapping films, fireproof films, heat sinks, decorative films and wireless charging coils.

[0020] 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.

[0021] In a possible implementation manner, a coverage ratio of the conductive circuit relative to the battery is in a range of 5% to 100%.

[0022] 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 a trauma detection function, and the embodiments of the present application do not impose strict restrictions on this.

[0023] In a possible implementation manner, a shape of an outer contour of the conductive circuit is the same as a shape of the battery.

[0024] 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.

[0025] In a possible implementation manner, the line width range and the line spacing range of the conductive circuit are both in the range of 0.01 mm to 1.5 mm.

[0026] It is understandable that, ideally, the smaller the wiring spacing of the conductive circuit is set, the better. However, in actual processing and manufacturing, the smaller the wiring spacing is, the more complicated the corresponding cost and process will be, and the greater the difficulty of processing and manufacturing will be. Therefore, the wiring spacing of the conductive circuit is set within the above range, which can fully consider the cost and process, has strong mass production, strong economic benefits, and good practicality.

[0027] 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 in a curved shape.

[0028] It can be understood that the shape of the main circuit is the shape that the conductive circuit as a whole can present. For example, in this embodiment, the main circuit can extend in a curved shape, so that the conductive circuit as a whole can present a wiring form arranged in a curved shape. Since the conductive circuit needs to be connected to other components in the trauma detection circuit, the conductive circuit needs to have an interface connected to the circuit. Therefore, the first wire end and the second wire end are set, so that each end of the conductive circuit has a wire end, so that the conductive circuit as a whole can be quickly and conveniently connected to other components in the trauma detection circuit, so that it has good connection performance.

[0029] 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.

[0030] 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.

[0031] For example, the battery may be a rectangular battery, and the main circuit extends in a serpentine shape, thereby forming a conductive circuit with a rectangular outer contour and a serpentine extension path. Alternatively, the battery may be an "L"-shaped battery, and the main circuit extends in a curved bend, thereby forming a conductive circuit with an "L"-shaped outer contour and a curved extension path. Alternatively, the battery may be a circular battery, and the main circuit extends in a spiral shape, thereby forming a conductive circuit with a circular outer contour and a spiral extension path.

[0032] In a possible implementation manner, the main line is formed by a conductive line extending in a continuous curve; or,

[0033] The main line is formed by at least two conductive lines extending in parallel and synchronously in a curved line.

[0034] It should be understood that the winding method of the main line 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 can be selected according to actual conditions, which has strong flexibility and a wide range of applications.

[0035] Specifically, the planar single winding type is formed by extending a conductive line in a continuous curve on the target surface, and the two ends of the conductive line respectively form a first line end and a second line end for connection. The planar double winding type is formed by extending two conductive lines side by side synchronously on the target surface, and the ends of the two conductive lines on one side of the two sides jointly form the first line end, and the ends of the two conductive lines on the other side of the two sides jointly form the second line end. The planar multi-winding type is formed by extending more than two conductive lines side by side synchronously on the target surface, and the ends of the two conductive lines on one side of the two sides jointly form the first line end, and the ends of the two conductive lines on the other side of the two sides jointly form the second line end.

[0036] 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 distance 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.

[0037] In a possible implementation manner, the main circuit is a thermocouple formed by splicing two metal wires of different conductive materials; or,

[0038] The main circuit is a thermal resistor composed of metal wires of a single conductive material.

[0039] Therefore, the main circuit is made into a thermocouple or thermal resistor to detect the temperature of the battery, which can make the conductive circuit have its own temperature measurement function to detect the temperature resistance of the battery and ensure the normal operation of the battery, that is, the conductive circuit can have the dual functions of trauma detection and temperature measurement, with diverse performance, strong practicality and a wide range of applications. In addition, by monitoring the surface temperature of the battery through the conductive circuit attached to the battery or set near the battery, it can be closer to the actual temperature of the battery than the protection board detection inside the battery.

[0040] In a possible implementation manner, 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;

[0041] 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.

[0042] Thus, the first circuit and the second circuit can be arranged by staggering each other, so that the routing spacing of the first circuit can accommodate the second circuit, that is, the main circuit presents a grid-like structure with intersections. This structural form can make full use of the routing spacing of the first circuit and the second circuit, so that the first circuit and the second circuit can be further densely arranged due to the complementary gaps, thereby forming a reliable coating on the target surface, and can minimize the possibility of missed detection due to incomplete coating, making the detection more accurate and reliable.

[0043] In a possible implementation manner, the trauma detection circuit further includes a voltage-dividing resistor, and the processing circuit includes an analog-to-digital converter and a control unit;

[0044] One end of the voltage-dividing resistor is connected to the power supply voltage, the other end of the voltage-dividing resistor is connected to the first line 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 line end of the conductive circuit is grounded;

[0045] 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;

[0046] 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.

[0047] It should be noted that the connection point where the voltage-dividing resistor and the conductive circuit are connected, the first line end, and the input end of the analog-to-digital converter are of equal potential, that is, the voltage value of the connection point where the voltage-dividing resistor and the conductive circuit are connected, the voltage value of the first line end, and the voltage value of the input end of the analog-to-digital converter are equal. In other words, the voltage value of the connection point where the voltage-dividing resistor and the conductive circuit are connected that can be detected by the analog-to-digital converter is the voltage value of the first line end of the conductive circuit, and is also the voltage value of the input end of the analog-to-digital converter.

[0048] 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 be normally conducted when it is not punctured by external force. At this time, the current can flow through the conductive circuit, and there will be partial voltage division at both ends of the conductive circuit, and 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 is abnormal. At this time, the voltage value of the connection point where the voltage divider resistor and the conductive circuit are connected is large.

[0049] For example, the abnormality of the conductive line may be that the conductive line is partially damaged, in which case the cross-sectional area of ​​the conductive line decreases, and because 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 increase significantly as the cross-sectional area of ​​the conductive line decreases. As a result, the voltage value at the connection point where the voltage divider resistor and the conductive line are connected increases significantly.

[0050] Alternatively, the abnormality of the conductive circuit may be that the conductive circuit is completely damaged, in which case the conductive circuit is disconnected (i.e., the voltage divider resistor and the connection point of the conductive circuit to GND are disconnected). As a result, the voltage value of the connection point where the voltage divider resistor and the conductive circuit are connected increases significantly, which may specifically be the voltage value of the power supply (VCC).

[0051] With reference to the above description, it should be understood that the change in the state of the conductive circuit can affect the voltage value of the connection point where the voltage-dividing resistor and the conductive circuit are connected, and the magnitude of the voltage value of the connection point where the voltage-dividing resistor and the conductive circuit are connected can be used as a basis for judging whether the battery 10 has external damage. In other words, the conductive circuit can be used as a detection object in the external damage detection circuit, and the processing circuit can be used as a detection subject with a detection function, which can judge whether the battery has external damage according to the conduction state of the conductive circuit.

[0052] In a possible implementation manner, the electronic device further includes a mainboard, and the voltage divider resistor and the processing circuit are arranged on the mainboard; or,

[0053] The battery further comprises a protection board arranged inside the shell, and the voltage dividing resistor and the processing circuit are arranged on the protection board.

[0054] 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.

[0055] In a possible implementation manner, 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 a preset threshold value;

[0056] The control unit is used to determine that the battery has external damage when the connection point voltage value detected by the analog-to-digital converter is greater than or equal to a preset threshold.

[0057] Therefore, when the control unit determines that the battery has external damage, the housing of the electronic device will also be damaged, so that the housing of the electronic device can be repaired. In addition, when the control unit determines that the battery has external damage, it can perform restriction processing, thereby indirectly warning of battery safety issues in advance to reduce battery safety hazards. The restriction processing performed by the control unit will be described below.

[0058] In a possible implementation manner, 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, and the control unit is used to:

[0059] When it is determined that the battery has external damage, a prompt message is popped up through 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.

[0060] Thus, the user can be reminded in a relatively gentle manner that the battery has a potential safety hazard, and the user can then perform related operations such as sending the device for repair or shutting down the device to ensure the safety of his or her personal and property, with high reliability. For example, a floating window can be used on the display screen to remind the user that the battery has a potential safety hazard, and the user is advised to shut down the device as soon as possible or be reminded to send the electronic device to an after-sales service center for related processing such as repair or testing.

[0061] In a possible implementation manner, the control unit is used to:

[0062] When it is determined that the battery has external damage, the charging power of the battery is controlled to be less than or equal to 50%.

[0063] Thus, the user can be reminded in a relatively gentle manner that the battery has a potential safety hazard, and the user can then perform related operations such as sending the device for repair or shutting down the device to ensure the safety of his or her personal and property, with high reliability. For example, a floating window can be used on the display screen to remind the user that the battery has a potential safety hazard, and the user is advised to shut down the device as soon as possible or be reminded to send the electronic device to an after-sales service center for related processing such as repair or testing.

[0064] In a second aspect, the present application provides a battery, comprising:

[0065] shell;

[0066] A protection plate, the protection plate being arranged inside the housing;

[0067] A trauma detection circuit, the trauma detection circuit comprising a conductive circuit and a processing circuit;

[0068] The conductive circuit is arranged on the housing, the processing circuit is arranged on the protection board, and the processing circuit is used to detect the conduction condition of the conductive circuit and judge whether the battery has external damage according to the conduction condition of the conductive circuit.

[0069] Therefore, 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.

[0070] In addition, by setting a conductive circuit and setting the conductive circuit on the battery, when the battery is subjected to external mechanical damage, the conductive circuit will be damaged in advance compared to the shell. That is, the detection of battery trauma by the processing circuit is a physical indirect detection of the battery based on the on-off of the conductive circuit. Compared with the traditional solution, which takes a lot of time and power consumption, the detection mechanism of judging whether the battery has trauma by detecting the electrochemical characteristics of the battery. By detecting whether the conductive circuit is damaged to judge whether the battery has trauma, on the one hand, it can be predicted in advance that the battery has safety hazards when the conductive circuit is damaged and the battery shell is about to suffer mechanical trauma, and then it can be used for the user to take related measures such as sending the battery for repair or replacement. A certain amount of time is gained, effectively preventing battery safety accidents and ensuring the personal safety and property safety of users. On the other hand, the layout of the conductive circuit is simple and reliable, and the effect of real-time detection in the battery can be quickly and conveniently achieved without spending a lot of time, occupying a lot of space and power consumption, which can effectively reduce costs, is conducive to the development trend of battery miniaturization, and has strong practicality and reliability.

[0071] In a possible implementation manner, a shape of an outer contour of the conductive circuit is the same as a shape of the battery.

[0072] In a possible implementation manner, a coverage ratio of the conductive circuit relative to the battery is in a range of 5% to 100%.

[0073] In a possible implementation manner, the line width range and the line spacing range of the conductive circuit are both in the range of 0.001 mm to 1.5 mm.

[0074] In a possible implementation manner, the thickness of the conductive line is in the range of 0.001 mm to 0.5 mm.

[0075] In a possible implementation, the conductive circuit is fixed to the inner surface or the outer surface of the housing, the conductive circuit includes a main circuit and a first wire end and a second wire end formed by two ends of the main circuit for connection, and the main circuit is curved.

[0076] 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.

[0077] In a possible implementation manner, the main line is formed by a conductive line extending in a continuous curve; or,

[0078] The main line is formed by at least two conductive lines extending in parallel and synchronously in a curved line.

[0079] In a possible implementation manner, the main circuit is a thermocouple formed by splicing two metal wires of different conductive materials; or,

[0080] The main circuit is a thermal resistor composed of metal wires of a single conductive material.

[0081] In a possible implementation manner, 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;

[0082] 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.

[0083] In a possible implementation manner, the trauma detection circuit further includes a voltage-dividing resistor, and the processing circuit includes an analog-to-digital converter and a control unit;

[0084] One end of the voltage-dividing resistor is connected to the power supply voltage, the other end of the voltage-dividing resistor is connected to the first line 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 line end of the conductive circuit is grounded;

[0085] 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;

[0086] 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.

[0087] In a possible implementation manner, 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 a preset threshold value;

[0088] The control unit is used to determine that the battery has external damage when the connection point voltage value detected by the analog-to-digital converter is greater than or equal to a preset threshold.

[0089] In a possible implementation manner, the control unit is used to:

[0090] When it is determined that the battery has external damage, the charging power of the battery is controlled to be less than or equal to 50%.

[0091] In a third aspect, the present application provides a battery damage detection method, which is applied to an electronic device, wherein the electronic device includes a housing, a battery disposed in the housing, and a damage detection circuit, wherein the damage detection circuit includes a conductive circuit and a voltage-dividing 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, and the method includes:

[0092] Detecting a voltage value at a connection point where the voltage-dividing resistor and the conductive circuit are connected;

[0093] It is determined whether the battery has external damage according to the voltage value of the connection point.

[0094] In a possible implementation manner, judging whether the battery has external damage according to the voltage value of the connection point includes:

[0095] When the detected voltage value of the connection point is greater than or equal to a preset threshold, it is determined that the battery has external damage;

[0096] When the detected connection point voltage value is less than the preset threshold, it is determined that the battery has no external damage.

[0097] In a possible implementation manner, the method further includes:

[0098] When it is determined that the battery has external damage, the charging power of the battery is controlled to be less than or equal to 50%.

[0099] In a possible implementation manner, the electronic device further includes a display screen, and the display screen is fixed to the housing, and the method further includes:

[0100] When it is determined that the battery has external damage, a prompt message is popped up through 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

[0101] Figure 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application from one angle;

[0102] Figure 2This is an exploded schematic diagram of an electronic device provided in an embodiment of the present application;

[0103] Figure 3 yes Figure 1 A schematic cross-sectional view of the electronic device shown is taken along line BB;

[0104] Figure 4 It is a circuit structure diagram of a damage detection circuit of an electronic device provided in an embodiment of the present application;

[0105] Figure 5 is a schematic structural diagram of an electronic device provided in an embodiment of the present application from another angle;

[0106] Figure 6 It is a partial structural diagram of an electronic device provided in an embodiment of the present application;

[0107] Figure 7 is a schematic structural diagram of a battery provided in an embodiment of the present application from one angle;

[0108] Figure 8 yes Figure 7 The schematic cross-sectional view of the battery shown is taken along line CC;

[0109] Fig. 9 is a schematic structural diagram of a battery provided in an embodiment of the present application from another angle;

[0110] Fig.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;

[0111] Fig.11 It is a schematic diagram of a coverage ratio of a conductive circuit of an electronic device relative to a battery provided in the first embodiment of the present application;

[0112] Fig.12 It 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;

[0113] Fig.13 This is a schematic structural diagram of a conductive circuit of an electronic device provided in the first embodiment of the present application;

[0114] Fig.14 This is another structural schematic diagram of the conductive circuit of the electronic device provided in the first embodiment of the present application;

[0115] Fig.15 This is another structural schematic diagram of the conductive circuit of the electronic device provided in the first embodiment of the present application;

[0116] Fig.16 This is another structural schematic diagram of the conductive circuit of the electronic device provided in the first embodiment of the present application;

[0117] Fig.17 This is another structural schematic diagram of the conductive circuit of the electronic device provided by the first embodiment of the present application being arranged on the battery;

[0118] Fig.18 This is another structural schematic diagram of the conductive circuit of the electronic device provided in the first embodiment of the present application being arranged on the battery;

[0119] Fig.19 This is a fifth structural schematic diagram of the conductive circuit of the electronic device provided in the first embodiment of the present application;

[0120] Fig. 20 This is a sixth structural schematic diagram of the conductive circuit of the electronic device provided in the first embodiment of the present application;

[0121] Fig.21 This is a seventh structural schematic diagram of the conductive circuit of the electronic device provided in the first embodiment of the present application;

[0122] Fig. 22 It is a schematic diagram of a structure in which the functional structure of an electronic device provided in the second embodiment of the present application is arranged on a battery;

[0123] Fig.23 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;

[0124] Fig.24 It is a structural schematic diagram of a conductive circuit of an electronic device provided in a fourth embodiment of the present application being arranged in a functional structure;

[0125] Fig.25 It is a structural schematic diagram of a conductive circuit of an electronic device provided in a fifth embodiment of the present application provided in a functional structure;

[0126] Fig.26 is a partial structural diagram of an electronic device provided in a sixth embodiment of the present application;

[0127] Fig. 27 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;

[0128] Fig.28 It is a schematic structural diagram of an electronic device provided in an eighth embodiment of the present application, in which a conductive circuit is arranged in a middle frame;

[0129] Fig.29 This is a schematic diagram of a structure in which a conductive circuit of an electronic device provided in a ninth embodiment of the present application is arranged on a back cover;

[0130] Fig.30This is another structural schematic diagram of the ninth embodiment of the present application in which the conductive circuit of the electronic device is arranged on the back cover;

[0131] Fig.31 It is a flow chart of the battery damage detection method provided in the embodiment of the present application. DETAILED DESCRIPTION

[0132] The specific implementation of the present application will be clearly described below in conjunction with the accompanying drawings.

[0133] The present application provides an electronic device, a battery, and a battery injury detection method. The battery can be applied to any device with a battery, such as a new energy vehicle. The electronic device can be any device with a battery. For example, the electronic device can be, but is not limited to, a mobile phone, a tablet computer, a laptop computer, a smart bracelet, a smart watch, a Bluetooth headset, an early education robot, and other devices.

[0134] Please refer to Figure 1-Figure 4 , the electronic device 100 includes a battery 10, a housing 20, a mainboard 30, a trauma detection circuit 40 and a functional structure 50. The battery 10 is an energy storage structure in the electronic device 100, which can provide reliable electric energy for the normal operation of the electronic device 100 and meet the power demand of the electronic device 100. The housing 20 is a shell 11 structure of the electronic device 100, which can accommodate and encapsulate various components of the electronic device 100, so that the various components of the electronic device 100 are protected from external dust, water vapor, etc., and have good protection performance. The mainboard 30 is a core component in the electronic device 100, which can be used as a carrier to connect the important components of the electronic device 100 in series, so as to play their respective roles. The functional structure 50 is a unit structure in the electronic device 100 that can independently realize the corresponding function, which can be arranged at a corresponding position between the battery 10 and the housing 20 according to the scene differences in actual application. 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 position 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 warn of safety issues of the battery 10 in advance.

[0135] It should be noted that Figure 1-Figure 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 it does not 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.

[0136] In the embodiments of the present application, for ease of understanding, a mobile phone, an electronic device 100 that has a wide range of users and rich application scenarios, is used as an example for description, but the invention is not limited thereto.

[0137] 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 the rear cover 24 are respectively connected to the opposite sides of the middle frame 21 to form a housing space for the electronic device 100 in cooperation with the middle frame 21. The housing space can be used to install components such as a motherboard 30, a battery 10, and various components and functional structures 50 constituting a trauma detection circuit 40. The display screen 22 is fixed to the front cover 23 and can display visual information such as images, colors, and texts.

[0138] It is understood that when the electronic device 100 is a mobile phone, the front cover 23 is a cover facing the user's face when the user holds the mobile phone, and it can be provided with a display screen 22 to present visual information such as images, colors, and text. The back cover 24 is a cover facing away from the user's face when the user holds the mobile phone, and it can be provided with a camera module as a rear camera to capture static images or dynamic videos behind the mobile phone. The material of the back cover 24 includes glass, plastic, or ceramic.

[0139] 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 lose the structural protection function of the battery 10, or it will also cause damage to the battery at the same time, which will bring hidden dangers to the normal use of the battery 10, that is, the damage to the peripheral structural member 60 can reflect the damage to the battery 10. However, it should be understood that the peripheral structural member 60 of the battery 10 is not limited to this. Any structural member located between the middle frame 21 and the back cover 24 and having a direct or indirect connection relationship with the battery 10 can be regarded as the peripheral structural member 60 of the battery 10, and the embodiments of the present application do not impose strict restrictions on this.

[0140] 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 mainboard 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 mainboard 30 can be installed in the mounting slot 25 and the battery 10 can be installed in the battery compartment 26, or the mainboard 30 can be taken out of the mounting slot 25 and the battery 10 can be taken out of 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 arranged adjacent to each other in the length direction of the middle frame 21, that is, the length direction of the electronic device 100.

[0141] Please refer to Figure 7 and Figure 8, the 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. 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. That is, 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 that is away from the battery cell 13 and exposed to the external environment. Exemplarily, 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.

[0142] The protection board 12 is an integrated circuit board having the dual functions of managing the battery 10 and protecting the battery 10 , and can provide control and protection for the charging and discharging of the battery 10 .

[0143] The battery cell 13 is the electricity storage part of the battery 10, which can be surrounded by the inner surface 111 of the shell 11 and is encapsulated by the shell 11, so as to have good sealing performance and avoid being disturbed by the external environment. Exemplarily, the battery 10 is a lithium battery 10. The shell 11 can be a hard shell made of, for example, aluminum, steel, nickel or their respective alloys. Alternatively, the 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 having 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, and mainly plays the role of protecting the internal battery materials and isolating the internal battery cells from the outside world.

[0144] That is, the battery 10 can be a hard-shell battery or a soft-pack battery. Compared with a hard-shell battery, a soft-pack battery can be inflated and cracked in the event of a safety hazard, and is less likely to explode. It has the advantages of good safety performance, light weight, large battery capacity, good cycle performance, small internal resistance, and flexible design, and can therefore be widely used in electronic devices 100.

[0145] In the embodiment of the present application, the battery 10 provided in the embodiment of the present application is described by taking the case where the shell 11 is made of aluminum-plastic film, that is, the battery 10 is a soft-pack battery as an example. It can be understood that the shell 11 is equivalent to the protective layer of the battery cell 13, and can play a role in structural protection of the battery cell 13. However, the shell 11 made of aluminum-plastic film has a relatively low structural strength and is more susceptible to damage such as puncture and cutting when subjected to instantaneous mechanical damage.

[0146] For example, when the outer shell 11 is damaged, the battery 10 may be at a relatively high power level (e.g., higher than 60% power level) and may explode due to thermal runaway on the spot. Alternatively, when the outer shell 11 is damaged, the battery 10 may be at a relatively high power level (e.g., higher than 60% power level) but may not be at a relatively high power level, but if the user continues to charge and use the battery, the battery 10 may explode. Alternatively, when the outer shell 11 is damaged, the battery 10 may be at a relatively low power level (e.g., lower than 60% power level) and various parameters (such as terminal voltage, internal resistance) may not be obviously abnormal, but if the user continues to charge and use the battery, there may be great safety hazards.

[0147] 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 trauma of the battery 10 can be effectively detected. And it can give an early warning for the trauma of the battery 10, so that the failure of the battery 10 can be detected early, the battery 10 safety accidents can be prevented, and the personal safety of the user can be ensured. It can be understood that the trauma of the battery 10 can be understood as the mechanical damage of 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).

[0148] In conjunction with the above description, it should be understood that the trauma detection circuit 40 can issue a timely warning 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, which will be described in detail below.

[0149] 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, and 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 protection board 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 structure 60 of the battery 10 (that is, it can be only on the battery 10, or only on the peripheral structure, or on both the battery 10 and the peripheral structure 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.

[0150] 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 arranged on the protection board 12 of the battery 10, and the conductive circuit 42 is arranged on the housing 11 of the battery 10. Thus, the battery 10 can have the dual functions of energy storage and trauma detection, and has strong practicality and a wide range of applications.

[0151] It is understandable that if the battery 10 is still charged and used normally when the shell 11 is mechanically damaged (there is external damage to the battery 10), it may cause certain safety problems of the battery 10 in a long or short period of time. Therefore, the conductive circuit 42 is provided and arranged on the battery 10 and / or the peripheral structure 60 of the battery 10, so that the conductive circuit 42 is located outside the shell 11 of the battery 10 in most cases, and its existence can be understood as a protective layer for the battery 10.

[0152] Based on this, when the conductive circuit 42 is broken due to external mechanical damage, it can be equivalent to the housing 11 of the battery 10 being mechanically damaged. In other words, in the embodiment of the present application, it can be determined that the abnormality of the conductive circuit 42 is equivalent to the existence of external damage to the battery 10. Therefore, by making the conductive circuit 42 and the processing circuit 43 together constitute the external damage detection circuit 40, the processing circuit 43 can detect whether the battery 10 has external damage by detecting the conductive state of the conductive circuit 42, thereby indirectly warning the safety problems of the battery 10 in advance and performing relevant restriction processing.

[0153] Specifically, one end of the voltage-dividing resistor 41 is connected to the power supply voltage (Volt Current Condenser, VCC), the other end of the voltage-dividing resistor 41 is connected to the first line end 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 the second line end 423 of the conductive circuit 42 is grounded (Ground, GND). The analog-to-digital converter 44 can detect the connection point voltage value (for example, the voltage value at point A) at the connection between the voltage-dividing resistor 41 and the conductive circuit 42 in real time, and process the detected connection point voltage value and transmit it to the control unit 45. The control unit 45 can obtain the processed connection point voltage value transmitted by the analog-to-digital converter 44 in real time, and judge whether the battery 10 has external damage according to the size of the received processed connection point voltage value, that is, the control unit 45 can judge whether the battery 10 has external damage according to the connection point voltage value detected by the analog-to-digital converter 44.

[0154] It should be noted that the connection point (e.g., point A) where the voltage-dividing resistor 41 and the conductive circuit 42 are connected, the first terminal 422, and the input terminal of the analog-to-digital converter 44 are at the same potential, that is, the voltage value of the connection point where the voltage-dividing resistor 41 and the conductive circuit 42 are connected, the voltage value of the first terminal 422, and the voltage value of the input terminal of the analog-to-digital converter 44 are equal. In other words, the voltage value of the connection point where the voltage-dividing resistor 41 and the conductive circuit 42 are connected that can be detected by the analog-to-digital converter 44 is the voltage value of the first terminal 422 of the conductive circuit 42, and is also the voltage value of the input terminal of the analog-to-digital converter 44.

[0155] It is understandable that the voltage-dividing 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 conducted when it is not punctured by external force. At this time, the current can flow through the conductive circuit 42, and there will be partial voltage division at both ends of the conductive circuit 42, and the voltage value of the connection point where the voltage-dividing 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-dividing resistor 41 and the conductive circuit 42 are connected is large.

[0156] In a possible implementation, the abnormality of the conductive circuit 42 may be that the conductive circuit 42 is partially damaged, in which case the cross-sectional area of ​​the conductive circuit 42 decreases, and because the impedance of the conductive circuit 42 is negatively correlated with the cross-sectional area of ​​the conductive circuit 42, the impedance of the conductive circuit 42 will significantly increase as the cross-sectional area of ​​the conductive circuit 42 decreases. 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.

[0157] In another possible implementation, the abnormality of the conductive circuit 42 may be that the conductive circuit 42 is completely damaged, in which case the conductive circuit 42 is disconnected (i.e., the connection between the voltage-dividing resistor 41 and the conductive circuit 42 and GND is disconnected). As a result, the voltage value of the connection point where the voltage-dividing resistor 41 and the conductive circuit 42 are connected increases significantly, which may specifically be the voltage value of the power supply (VCC).

[0158] With reference to the above description, it should be understood that the change in the state of the conductive circuit 42 can affect the voltage value of the connection point where the voltage-dividing resistor 41 and the conductive circuit 42 are connected, and the magnitude of the voltage value of the connection point where the voltage-dividing resistor 41 and the conductive circuit 42 are connected can be used as a basis for judging whether the battery 10 has external damage. In other words, the conductive circuit 42 can be used as a detection object in the external damage detection circuit 40, and the processing circuit 43 can be used as a detection subject with a detection function, which can judge whether the battery 10 has external damage according to the conduction state of the conductive circuit 42.

[0159] Specifically, when the conductive circuit 42 is normally conductive, the connection point voltage value detected by the analog-to-digital converter 44 is less than the preset threshold. Thus, the control unit 45 can determine that the battery 10 has no external injuries 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 injuries 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.

[0160] In a specific application scenario, the impedance of the voltage-dividing resistor 41 is 200 kΩ, the power supply voltage (indicated by VCC in the figure) is 3.3 V, and under normal circumstances, the voltage at point A at the connection between the voltage-dividing resistor 41 and the conductive circuit 42 is 0.5 VCC. When the conductive circuit 42 is cut and disconnected, the voltage at point A is the power supply voltage, i.e., 3.3 V. Therefore, when the control unit 45 detects a drastic change in the voltage at point A through the analog-to-digital converter 44, it is determined that the battery 10 has external damage.

[0161] 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 perform restriction processing, thereby indirectly warning of safety issues of the battery 10 in advance to reduce safety hazards of the battery 10. The restriction processing performed by the control unit 45 will be described below.

[0162] In a possible implementation, if the control unit 45 determines that the battery 10 has external damage, the control display screen 22 pops up a prompt message, and the prompt message 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 way that the battery 10 has a safety hazard, so that the user can perform related operations such as sending for repair or shutting down to ensure his personal safety and property safety, and the reliability is strong. For example, the user can be reminded in the form of a floating window on the interface of the display screen 22 that the battery 10 has a safety hazard, and the user is advised to shut down as soon as possible or be reminded to send the electronic device 100 to the after-sales service for related processing such as repair or testing.

[0163] For example, the floating window may display "An abnormality has been detected in your battery 10, and it will automatically shut down in ten minutes", and include options for "Shut down now" and "Cancel", and 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", and include the contact information of the after-sales service, as well as the options of "Agree to feedback the battery 10 problem to after-sales" and "Cancel", and the user can select "Agree to feedback the battery 10 problem to after-sales", and 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.

[0164] In another possible implementation, when the control unit 45 determines that the battery 10 has external damage, the charging capacity (State of Charge, SoC) of the battery 10 is controlled to be less than or equal to 50%. In this way, a more reasonable capacity line can be drawn when the battery 10 has external damage, so as to avoid the problem of further aggravating the damage of the battery 10 due to excessive maximum charging capacity and affecting the service life of the battery 10, and avoid the potential safety hazards caused by overcharging the battery 10 as much as possible to avoid causing greater losses.

[0165] 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%.

[0166] It is understandable that controlling the charging capacity of the battery 10 is to control the charging power of the battery 10, and controlling the charging power of the battery 10 can be achieved by controlling the charging voltage of the battery 10 and / or controlling the charging current of the battery 10. For example: reducing the charging cut-off voltage of the battery 10; or reducing the maximum charging current of the battery 10; or reducing both the charging cut-off voltage and the maximum charging current of the battery 10. Thus, when the capacity of the battery 10 has reached or is about to reach the maximum charging capacity of the battery 10, and the voltage of the battery 10 has reached or is about to reach the maximum charging voltage of the battery 10, the charging of the battery 10 is controlled to be slowed down or stopped.

[0167] Exemplarily, the control unit 45 can limit the charging current of the battery 10 to meet 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 larger charging current, and the battery 10 is only allowed to be slowly charged with a smaller 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, so that the charging capacity of the battery 10 can be effectively monitored, and the problem of thermal runaway caused by overcharging of the battery 10 can be avoided, thereby protecting the battery 10 and saving electricity.

[0168] In another possible implementation, when the control unit 45 determines that the battery 10 has external damage, a prompt instruction is sent 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. Exemplarily, 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 safety problems on the computer screen of the after-sales service personnel in the form of a pop-up window. Thus, 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.

[0169] In another possible implementation, when the control unit 45 determines that the battery 10 has external damage, the electronic device 100 is controlled to start the battery 10 protection mode, wherein the battery 10 protection mode is a mode that restricts the user from using some functions or applications. In this way, the consumption rate of the battery 10 can be reduced, and safety accidents caused by rapid consumption of the battery 10 can be avoided, effectively preventing the battery 10 with potential safety hazards from being dangerous due to charging.

[0170] Exemplarily, the battery 10 protection mode may be to limit applications that consume a large amount of power per unit time (e.g., camera, video call, video), or to limit the use of functions that may easily cause safety hazards to the battery 10 (e.g., the fast charging function may be limited, and the electronic device 100 may only be allowed to charge the battery 10 in a slow charging manner, or the electronic device 100 may be directly prohibited from charging the battery 10 in any manner). The battery 10 protection mode may be automatically turned on when the control unit 45 determines that the battery 10 has external damage, and the user needs to manually turn off the battery 10 protection mode when it is turned off.

[0171] It should be noted that the implementation method of the restriction processing performed by the control unit 45 is not limited to the possibilities described above. When it is determined that the battery 10 has external damage, the control unit 45 can also control the speaker to play a voice message, and the voice message 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. Therefore, it should be understood that the restriction processing method performed by the control unit 45 has various possibilities. As for the restriction processing method, as long as it can reduce the safety hazards caused by the continued use of the battery 10, the embodiments of the present application do not make specific restrictions on this.

[0172] Based on the above description, the trauma detection circuit 40 in the embodiment of the present application can determine whether the battery 10 has trauma by detecting the on / off status of the conductive circuit 42, and when the battery 10 has trauma, it can remind the user to pay attention to the safety of the battery 10 by executing corresponding restriction processing, which can effectively reduce the safety hazards of the battery 10 and ensure the personal safety of the user. In addition, the trauma detection function of the trauma 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.

[0173] The detection principle of the damage detection circuit 40 is clearly described above. The detection object of the damage detection circuit 40, that is, the structure and position of the conductive circuit 42, will be specifically described below.

[0174] It should be understood that in the embodiment of the present application, in order to ensure the reliability of the battery 10 injury detection result, the conductive circuit 42 needs to be set on the battery 10 and / or on the peripheral structure 60 of the battery 10. In addition, in order to ensure that the battery 10 can be successfully detected whether there is an injury by turning on and off the conductive circuit 42, at least part of the conductive circuit 42 needs to be overlapped with the battery 10 (that is, 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), that is, the wiring position of the conductive circuit 42 needs to be set corresponding to the battery 10, so as to avoid the problem of failure to achieve effective detection due to complete misalignment of the two (that is, there is no overlapping part between the two).

[0175] It should be noted that the conductive circuit 42 may be entirely disposed on the battery 10, or the conductive circuit 42 may be entirely disposed on the peripheral structural member 60 of the battery 10, or the conductive circuit 42 may be partially disposed on the battery 10 and partially disposed on the peripheral structural member 60 of the battery 10, and the peripheral structural member 60 includes the middle frame 21, the back cover 24 or the functional structure 50. The following description will be made by taking the case where the conductive circuit 42 is entirely disposed on the battery 10 or entirely disposed on the peripheral structural member 60 of the battery 10 as an example, but it should be understood that this is not limited thereto.

[0176] 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.

[0177] Thus, by setting the conductive circuit 42, and setting the conductive circuit 42 on the battery 10 or the structure close to the battery 10, that is, the peripheral structure 60 of the battery 10, and making at least part of the conductive circuit 42 overlap with the battery 10, it can be made that when the electronic device 100 suffers from external mechanical damage, the conductive circuit 42 will be damaged in advance compared with the battery 10. That is, the detection of the external injury of the battery 10 by the processing circuit 43 is a physical indirect detection of the battery 10 based on the on and off of the conductive circuit 42. Compared with the traditional scheme, it takes a lot of time and power consumption to detect the detection mechanism of whether the battery 10 is injured by detecting the electrochemical characteristics of the battery 10. By detecting whether the conductive circuit 42 is damaged and judging whether the battery 10 is injured, on the one hand, it can be predicted in advance that the battery 10 has a safety hazard when the conductive circuit 42 is damaged and the battery 10 is about to suffer mechanical injury, and then it can buy a certain time for the user to take related measures such as sending the electronic device 100 for repair, 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 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.

[0178] 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.

[0179] The following will clearly illustrate the possibility of the wiring position of the conductive circuit 42 through several specific embodiments, wherein 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, but 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 may be regarded as other structural members referred to herein, and the embodiments of the present application do not impose strict restrictions on this.

[0180] First embodiment:

[0181] Please refer to Figure 8 and Fig. 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 at the battery 10. In a possible implementation, the conductive circuit 42 can be integrally formed with the housing 11 of the battery 10.

[0182] 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.

[0183] 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.

[0184] Please refer to Figure 6 , Figure 8 and Fig. 9 The outer surface 112 of the housing 11 has two large surfaces. The two large surfaces of the outer surface 112 of the housing 11 refer to the two surfaces with the largest areas in the outer surface 112 of the housing 11, that is, 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 housing 11 is connected to the bottom surface 261 of the battery compartment 26 to ensure the installation stability of the battery 10, and the other large surface faces the rear cover 24.

[0185] Correspondingly, the inner surface 111 of the outer shell 11 also has two large surfaces, which refer to the two surfaces with the largest areas in the inner surface 111 of the outer shell 11, that is, 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 in 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.

[0186] When the electronic device 100 is subjected to 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. In addition, the surface of the outer shell 11 of the battery 10 with a smaller area (including the inner surface 111 and the outer surface of the outer shell 11) is relatively strong compared with the large surface of the outer shell 11 of the battery 10 (including the inner surface 111 and the outer surface of the outer shell 11). Based on this, 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 on the large surface of the outer shell 11 of the battery 10 with relatively low strength (including the inner surface 111 and the outer surface of the outer shell 11).

[0187] In this embodiment, the coverage ratio of the conductive circuit 42 to the target surface T may be in the range of 5% to 100% (including the end value), wherein the coverage ratio is the ratio of the cross-sectional area of ​​the conductive circuit 42 parallel to the target surface T to the area of ​​the target surface T. That is, the coverage ratio of the conductive circuit 42 relative to the battery 10 is in the range of 5% to 100%.

[0188] See also Fig.11 In a specific application scenario, (a) represents the target surface T of the battery 10, and its area is recorded as Sa, (b) represents the structural component in the electronic device 100, and its cross-sectional area parallel to the target surface T is recorded as Sb, and the shaded portion in (c) is the portion of the structural component in the electronic device 100 that does not cover the target surface T, and is also the portion of the target surface T with relatively low structural strength, and its area is recorded as Sc. In other words, the shaded portion is the portion of the target surface T that needs to be preferentially covered by the conductive circuit 42 for damage detection, and its area is recorded as Sc.

[0189] Therefore, coverage ratio=(area of ​​target surface T-area of ​​target surface T covered by the structure of the electronic device 100) / area of ​​target surface T=(Sa-Sb) / Sa=Sc / Sa. In this application scenario, the coverage ratio is about 10%.

[0190] See also Fig.12 In another specific application scenario, (d) represents the target surface T of the battery 10, and its area is recorded as Sd, (e) represents the coil in the wireless charging coil, and its cross-sectional area parallel to the target surface T is recorded as Se, and the shaded portion in (f) is the portion of the coil in the wireless charging coil that does not cover the target surface T, and is also the portion of the target surface T with relatively low structural strength, and its area is recorded as Sf. In other words, the shaded portion is the portion of the target surface T that needs to be preferentially covered by the conductive circuit 42 for damage detection, and its area is recorded as Sf.

[0191] 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%.

[0192] It can be understood that the portion of the target surface T covered by the conductive circuit 42 is the portion that can be inspected for damage by the conductive circuit 42. In actual application, the target surface T may be partially covered by other structural parts in the electronic device 100, and the portion of the target surface T covered by other structural parts in the electronic device 100 is the portion with relatively high structural strength in the target surface T, that is, the portion of the target surface T not covered by other structural parts in the electronic device 100 is the portion with relatively low structural strength in the target surface T. Therefore, the conductive circuit 42 can preferentially cover the portion of the target surface T not covered by other structural parts of the electronic device 100.

[0193] With reference to 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, for example, 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 with the specific application environment, and it is only necessary to ensure that the battery 10 has a trauma detection function, and this embodiment does not impose strict restrictions on this.

[0194] 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.

[0195] Please refer to Fig.13 and Fig.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.

[0196] It can be understood that the shape of the main line 421 is the shape that the conductive line 42 as a whole can present. For example, in this embodiment, the main line 421 can extend in a curved shape, so that the conductive line 42 as a whole can present a wiring form arranged in a curved shape. Since the conductive line 42 needs to be connected to other components in the trauma detection circuit 40, the conductive line 42 needs to have an interface connected to the circuit. Therefore, the first line end 422 and the second line end 423 are provided, so that each end of the conductive line 42 has a line end, so that the conductive line 42 as a whole can be quickly and conveniently connected to other components in the trauma detection circuit 40, so that it has good connection performance.

[0197] In a possible implementation manner, 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 .

[0198] Please refer to Fig.13 , Fig.15 and Fig.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 strong flexibility and a wide range of applications.

[0199] Specifically, the planar single winding type is formed by extending a conductive line 424 in a continuous curve on the target surface T, and the two ends of the conductive line 424 respectively form a first line end 422 and a second line end 423 for connection. The planar double winding type is formed by extending two conductive lines 424 in parallel and synchronously on the target surface T, and the ends of the two conductive lines 424 on one side of the two sides jointly form the first line end 422, and the ends of the two conductive lines 424 on the other side of the two sides jointly form the second line end 423. The planar multi-winding type is formed by extending more than two conductive lines 424 in parallel and synchronously on the target surface T, and the ends of the two conductive lines 424 on one side of the two sides jointly form the first line end 422, and the ends of the two conductive lines 424 on the other side of the two sides jointly form the second line end 423.

[0200] 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, so that when covering the same area of ​​the target surface T, the number of turns of the conductive wires 424 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.

[0201] In this embodiment, the line width of the conductive circuit 42 is in the range of 0.001mm to 1.5mm (including the endpoint values), the line spacing is in the range of 0.001mm to 1.5mm (including the endpoint values), and the thickness is in the range of 0.001mm to 0.5mm (including the endpoint values).

[0202] 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.

[0203] It can be understood that when the main line 421 is formed by a conductive line 424 being bent and extended in a continuous curve, the line spacing of the conductive line 42 can be understood as the spacing between two adjacent curved segments in the conductive line 424. When the main line 421 is formed by multiple conductive lines 424 being bent and extended in parallel and synchronously, the line spacing of the conductive line 42 can be understood as the spacing between two adjacent conductive lines 424.

[0204] It should be noted that, ideally, the smaller the wiring spacing of the conductive circuit 42 is set, the better. However, in actual processing and manufacturing, the smaller the wiring spacing is, the more complicated the corresponding cost and process will be, and the greater the difficulty of processing and manufacturing will be. Therefore, the wiring spacing of the conductive circuit 42 is set within the above range, which can fully consider the cost and process, has strong mass production, strong economic benefits, and good practicality.

[0205] Please refer to Fig.10 , Fig.17 and Fig.18 In a possible implementation, the outer contour of the conductive circuit 42 is the same as the shape of the battery 10. Thus, the conductive circuit 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 the injury detection.

[0206] For example, Fig.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. Fig.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. Fig.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.

[0207] 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 also be extended in any combination of curves, straight lines, oblique lines or one or more combinations. This embodiment does not impose strict restrictions on this.

[0208] It is understandable that, as the coverage ratio of the conductive circuit 42 relative to the battery 10 increases, the detection area that can be detected by the conductive circuit 42 increases. Therefore, considering the larger coverage ratio, the main circuit 421 can not only present the structural form in which there is no intersection between the circuits in the above description, but also present the grid-like structural form in which there are intersections between the circuits.

[0209] See also Fig.19 , exemplarily, the main line 421 includes a first line 425 and a second line 426, which have the same shape and are staggered with each other. One end of the first line 425 forms a first line terminal 422, the other end of the first line 425 is connected to one end of the second line 426, and the other end of the second line 426 forms a second line terminal 423.

[0210] Thus, the first circuit 425 and the second circuit 426 can be arranged by staggering each other, so that the routing spacing of the first circuit 425 can accommodate the second circuit 426, that is, the main circuit 421 presents a grid-like structure with intersections. This structural form can make full use of the routing spacing of the first circuit 425 and the second circuit 426, so that the first circuit 425 and the second circuit 426 can be further densely arranged due to the complementary gaps, thereby forming a reliable coating on the target surface T, and can minimize the possibility of missed detection due to incomplete coating, making the detection more accurate and reliable.

[0211] It should be noted that the sizes of the first circuit 425 and the second circuit 426 can be completely the same or slightly different. For example, the wiring spacing of the second circuit 426 can be slightly larger than the wiring spacing of the first circuit 425. The main circuit 421 can also have more circuits, for example, it can also have a third circuit (not shown), and the first circuit 425, the second circuit 426 and the third circuit are staggered to make the conductive circuit 42 more densely arranged, and this embodiment does not impose strict restrictions on this.

[0212] In this embodiment, the material of the conductive circuit 42 may include ink, conductive copper paste and conductive silver paste. It should be understood that the cost of ink is relatively low. When the battery 10 needs to be mass-produced, the use of ink can greatly reduce the production cost, is low-priced, and has excellent economic benefits. The conductive copper paste and the conductive silver paste have relatively small impedance, good toughness after curing, and have excellent bending resistance.

[0213] In addition, the processing technology of the conductive circuit 42 may include printing, etching, spraying, coating, laser cutting, vacuum coating and magnetron sputtering.

[0214] 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.

[0215] Since the electronic device 100 is used for a long time, the battery 10 will inevitably heat up. If a short circuit occurs in the battery 10, the battery 10 will also heat up quickly. There are many types of accidents caused by the heating of the battery 10. Common ones are leakage, deformation and other minor injuries, but there are also major accidents such as explosion and splashing that may harm the user's personal safety. In order to ensure the personal safety of the user, it is very important to monitor the temperature of the battery 10.

[0216] Therefore, please refer to Fig. 20 and Fig.21 In this embodiment, the conductive circuit 42 may not only have the function of trauma detection, but also have the function of temperature detection.

[0217] See also Fig. 20 In a possible implementation, the main line 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.

[0218] It is understandable 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 are used as two electrode wires, which are connected at one point and placed in the temperature measurement environment of the target surface T of the battery 10 as a measuring end. The two unconnected ends of the two electrode wires are connected to the trauma detection circuit 40 as the first wire end 422 and the second wire end 423. 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, thereby generating a current, and then the temperature of the battery 10 can be known through the functional relationship between the current and the temperature.

[0219] For example, the metal wire 427 with positive polarity (positive electrode) can form the first wire end 422, and its material can be nickel-chromium. The metal wire 427 with negative polarity (negative electrode) can form the second wire end 423, and its material can be nickel-silicon. Alternatively, the metal wire 427 with positive polarity (positive electrode) can form the first wire end 422, and its material can be pure copper. The metal wire 427 with negative polarity (negative electrode) can form the second wire end 423, and its material can be nickel-chromium.

[0220] See also Fig.21 In another possible implementation, the main line 421 is composed of a metal wire 427 of a single conductive material. Thus, the metal wire 427 of a single different conductive material can form a thermal resistor to detect the temperature of the battery 10.

[0221] It is understandable that the working principle of the thermal resistor is based on the characteristic that the resistance value of the metal changes with the temperature and is approximately proportional. When the temperature of the target surface T of the battery 10 changes, the resistance value of the metal changes with the temperature. Therefore, the temperature of the battery 10 can be determined based on the resistance value of the metal and the graduation table.

[0222] Exemplarily, the material of the metal wire 427 includes platinum, nickel or copper.

[0223] Based on the above description, the main circuit 421 is made to constitute a thermocouple or a thermistor to detect the temperature of the battery 10, so that the conductive circuit 42 can have its own temperature measurement function to 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.

[0224] It should be understood that monitoring the surface temperature of the battery 10 by the conductive circuit 42 attached to the target surface T of the battery 10 can be closer to the actual temperature of the battery 10 than the detection by the protection plate (not shown) inside the battery 10, that is, on the basis of realizing the external injury detection by the conductive circuit 42, it can also have the additional benefit of conventionally detecting the temperature of the battery 10. The conductive circuit 42 can detect the temperature of the battery 10 by detecting the voltage value at the connection point, and derive the surface temperature of the battery 10 according to the corresponding relationship between the voltage and the temperature.

[0225] Exemplarily, when the battery 10 is not damaged and operates normally, the detected temperature of the surface of the battery 10 is no higher than 60°C. When the battery 10 is damaged, the detected temperature of the surface of the battery 10 is higher than 70°C or 80°C. At this time, the battery 10 has a tendency of thermal runaway, and the aforementioned related restriction processing can be executed by the control unit 45.

[0226] 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 arranged on the protection board 13, and the conductive circuit 42 is arranged 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 can enable the battery 10 to have the dual functions of energy storage and trauma detection, and has strong practicality and a wide range of applications.

[0227] Therefore, by setting the conductive circuit 42 and setting the conductive circuit 42 on the shell 11, when the battery 10 is subjected to external mechanical damage, the conductive circuit 42 will be damaged in advance compared to the shell 11. That is, the detection of the external injury of the battery 10 by the processing circuit 43 is a physical indirect detection of the battery 10 based on the on and off of the conductive circuit 42. Compared with the traditional scheme, which takes a lot of time and power consumption, the detection mechanism of judging whether the battery 10 has external injury by detecting the electrochemical characteristics of the battery 10. By detecting whether the conductive circuit 42 is damaged to judge whether the battery 10 has external injury, on the one hand, it can be predicted in advance that the battery 10 has safety hazards when the conductive circuit 42 is damaged and the shell 11 of the battery 10 is about to suffer mechanical injury, and then it can buy a certain amount of time for the user to take related 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 users. 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.

[0228] Second embodiment:

[0229] Please refer to Fig.13 and Fig. 22 In the second embodiment of the present application, the same contents as those in the first embodiment are not described in detail. The difference from the first embodiment is that the conductive circuit 42 is fixed to the functional structure 50. It should be understood that since the conductive circuit 42 can be regarded as a very thin wire, the fixing form thereof can be fixed to the target surface T located at the functional structure 50. Therefore, the target surface T is the surface of the functional structure 50.

[0230] In this embodiment, the functional structure 50 is a wrapping film coated on the outer surface 112 of the outer shell 11 of the battery 10, and 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, which can form a good integrated attachment effect with the outer surface 112 of the outer shell 11 of the battery 10. In addition, a sticky substance is provided on the wrapping film, and the sticky 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 sticky substance, avoiding direct contact between the battery 10 and the sticky 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 a possible embodiment, the material of the wrapping film may include epoxy material, polyurethane or polypropylene. The sticky substance may be glue or double-sided tape, which is convenient for fixing the battery 10 in the battery compartment 26.

[0231] 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 also be the surface of the wrapping film facing away from the battery 10.

[0232] It can be understood that, in actual applications, the wrapping film may 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 may only cover the two large surfaces of the outer surface 112 of the outer shell 11, or, the wrapping film may 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, and 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, and this embodiment does not impose any specific restrictions on this.

[0233] When the electronic device 100 is subjected to 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. In addition, the surface of the outer shell 11 of the battery 10 (including the inner surface 111 and the outer surface of the outer shell 11) with a smaller area has a relatively higher strength than the larger surface of the outer shell 11 of the battery 10 (including the inner surface 111 and the outer surface of the outer shell 11). Based on this, 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 set corresponding to the larger surface of the outer shell 11 of the battery 10 (including the inner surface 111 and the outer surface of the outer shell 11) with relatively low strength.

[0234] That is, the conductive circuit 42 may be disposed on a portion of the surface of the wrapping film corresponding to the large surface of the housing 11 .

[0235] 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 thinness of the wrapping 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, since the wrapping film is convenient for disassembling the functional purpose of the battery 10, setting the conductive circuit 42 thereon can diversify the performance of the wrapping 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.

[0236] Third embodiment:

[0237] Please refer to Fig.13 and Fig.23In the third embodiment of the present application, the same contents as those in the first embodiment are not described in detail. The difference from the first embodiment is that the conductive circuit 42 is fixed to the functional structure 50. It should be understood that since the conductive circuit 42 can be regarded as a very thin wire, the fixing form thereof can be fixed to the target surface T located at the functional structure 50. Therefore, the target surface T is the surface of the functional structure 50.

[0238] In this embodiment, the functional structure 50 is a fireproof film covering the outer surface 112 of the outer shell 11 of the battery 10, and at least part of the fireproof film is located between the battery 10 and the back cover 24, that is, the fireproof film at least covers the large surface of the outer surface 112 of the outer shell 11 away from the battery compartment 26. Exemplarily, the fireproof film can be provided on the large surface of the outer surface 112 of the outer shell 11 away from the battery compartment 26.

[0239] Thus, the fireproof film can isolate the battery 10 from the electronic device 100, so that when the battery 10 catches fire due to thermal runaway inside the battery 10, the fireproof film can prevent the flame from spraying out of the battery 10, and the possibility of burning the internal components of the electronic device 100 due to the spread of the flame when the battery 10 catches fire is reduced to a minimum, thus providing good protection for both the battery 10 and the electronic device 100. In a possible implementation, the material of the fireproof film includes antimony trioxide (Sb2O3) and a halogen compound.

[0240] 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.

[0241] When the electronic device 100 is subjected to 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. In addition, the surface of the outer shell 11 of the battery 10 (including the inner surface 111 and the outer surface of the outer shell 11) with a smaller area has a relatively higher strength than the larger surface of the outer shell 11 of the battery 10 (including the inner surface 111 and the outer surface of the outer shell 11). Based on this, 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 set corresponding to the larger surface of the outer shell 11 of the battery 10 (including the inner surface 111 and the outer surface of the outer shell 11) with relatively low strength.

[0242] That is, the conductive circuit 42 may be disposed on a portion of the surface of the fireproof film that corresponds to the large surface of the outer shell 11 .

[0243] 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 being able to prevent the flame from ejecting from the battery 10, arranging 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 arranged on other structural parts, and the layout is reasonable.

[0244] Fourth embodiment:

[0245] Please refer to Figure 2 and Fig.24 In the fourth embodiment of the present application, the same contents as those in the first embodiment are not described in detail. The difference from the first embodiment is that the conductive circuit 42 is fixed to the functional structure 50. It should be understood that since the conductive circuit 42 can be regarded as a very thin wire, the fixing form thereof can be fixed to the target surface T located at the functional structure 50. Therefore, the target surface T is the surface of the functional structure 50.

[0246] In this embodiment, the functional structure 50 is a heat sink located between the battery 10 and the back cover 24. Specifically, the heat sink can cover the battery 10 and extend from the main board 30 to the small board. The heat sink can evenly dissipate the heat of the main board 30 to the internal space of the electronic device 100, thereby achieving the purpose of heat dissipation for the main board 30. In a possible implementation, the heat sink can cover the outer surface 112 of the housing 11 away from the large surface of the battery compartment 26. The material of the heat sink includes graphite.

[0247] 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.

[0248] When the electronic device 100 is subjected to 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. In addition, the surface of the outer shell 11 of the battery 10 (including the inner surface 111 and the outer surface of the outer shell 11) with a smaller area has a relatively higher strength than the larger surface of the outer shell 11 of the battery 10 (including the inner surface 111 and the outer surface of the outer shell 11). Based on this, 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 set corresponding to the larger surface of the outer shell 11 of the battery 10 (including the inner surface 111 and the outer surface of the outer shell 11) with relatively low strength.

[0249] 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 .

[0250] 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 to ensure 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.

[0251] Fifth embodiment:

[0252] Please refer to Figure 2 and Fig.25 In the fifth embodiment of the present application, the same contents as those in the first embodiment are not described in detail. The difference from the first embodiment is that the conductive circuit 42 is fixed to the functional structure 50. It should be understood that since the conductive circuit 42 can be regarded as a very thin wire, the fixing form thereof can be fixed to the target surface T located at the functional structure 50. Therefore, the target surface T is the surface of the functional structure 50.

[0253] 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 can be attached to the surface of the back cover 24 facing the battery 10 .

[0254] It is understandable that when the back cover 24 is made of glass, in order to increase the aesthetics of the back cover 24, a decorative film is applied to the back cover 24, and the decorative film can make the back cover 24 present rich visual effects such as color and light and shadow. For example, the decorative film can be a glare film, so as to produce a gradient and glare texture, thereby improving the look and feel of the electronic device 100.

[0255] 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.

[0256] When the electronic device 100 is subjected to 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. In addition, the surface of the outer shell 11 of the battery 10 (including the inner surface 111 and the outer surface of the outer shell 11) with a smaller area has a relatively higher strength than the larger surface of the outer shell 11 of the battery 10 (including the inner surface 111 and the outer surface of the outer shell 11). Based on this, 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 set corresponding to the larger surface of the outer shell 11 of the battery 10 (including the inner surface 111 and the outer surface of the outer shell 11) with relatively low strength.

[0257] That is, the conductive circuit 42 may be disposed on a portion of the surface of the decorative film corresponding to the large surface of the housing 11 .

[0258] 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 to ensure the accuracy of the external 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 parts of the electronic device 100 caused by being set on other structural parts, and the layout is reasonable.

[0259] Sixth embodiment:

[0260] Please refer to Figure 7 , Fig.13 and Fig.26 In the sixth embodiment of the present application, the same contents as those in the first embodiment are not repeated here. The difference from the first embodiment is that the conductive circuit 42 is fixed to the functional structure 50. It should be understood that since the conductive circuit 42 can be regarded as a very thin wire, the fixing form thereof can be fixed to the target surface T located at the functional structure 50. Therefore, the target surface T is the surface of the functional structure 50.

[0261] 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) connection terminal 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, and the wireless charging coil is connected to the mainboard 30 through the BTB connection terminal 52.

[0262] 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.

[0263] 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 may be the surface of the wireless charging coil facing the battery 10.

[0264] It should be noted that the target surface T can only be the surface of the wireless charging coil facing the battery 10, but not the surface of the wireless charging coil facing away from the battery 10. Thus, the problem of reduced efficiency of wireless charging due to obstruction of the conductive line 42 can be effectively avoided.

[0265] Since the first wire end 422 and the second wire end 423 of the conductive circuit 42 need to be connected to the mainboard 30, and the BTB terminal 52 of the wireless charging coil has an idle pin, the first wire end 422 and the second wire end 423 can be connected to the mainboard 30 using the idle pin of the BTB terminal 52. In other words, the conductive circuit 42 and the wireless charging coil can share a BTB terminal 52, which can reduce the material cost and space occupied by additionally connecting the first wire end 422 and the second wire end 423 to the mainboard 30, and is conducive to the miniaturization of the electronic device 100.

[0266] When the electronic device 100 is subjected to 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. In addition, the surface of the outer shell 11 of the battery 10 (including the inner surface 111 and the outer surface of the outer shell 11) with a smaller area has a relatively higher strength than the larger surface of the outer shell 11 of the battery 10 (including the inner surface 111 and the outer surface of the outer shell 11). Based on this, 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 set corresponding to the larger surface of the outer shell 11 of the battery 10 (including the inner surface 111 and the outer surface of the outer shell 11) with relatively low strength.

[0267] That is, the conductive circuit 42 may be disposed on a portion of the surface of the wireless charging coil corresponding to the large surface of the housing 11 .

[0268] 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 thinness of the wireless charging coil, 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 the wireless charging coil can enable the electronic device 100 to have the functional use of the 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 parts of the electronic device 100 caused by being set on other structural parts, and the layout is reasonable.

[0269] Seventh embodiment:

[0270] Please refer to Figure 2 , Fig.26 and Fig. 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, the types of the multiple functional structures 50 are different, and the multiple functional structures 50 are stacked in sequence, and the target surface T is the surface of one of the functional structures 50.

[0271] 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, thereby, the battery 10, the heat sink, the wireless charging coil and the back cover 24 are stacked in sequence, and the target surface T can be the surface of any one of the heat sink and the wireless charging coil.

[0272] In a specific application scenario, the number of functional structures 50 is five, namely, a wrapping film, a fireproof film, a heat sink, a decorative film, and a wireless charging coil. The outer surface 112 of the housing 11 of the battery 10 is wrapped with a wrapping film and a fireproof film in sequence, the heat sink is located between the battery 10 wrapped with the wrapping film and the fireproof film and the wireless charging coil, the wireless charging coil is located between the heat sink and the decorative film, and the decorative film is located between the wireless charging coil and the back cover 24. Thus, the heat sink, the wireless charging coil, and the decorative film are stacked in sequence between the battery 10 wrapped with the wrapping film and the fireproof film and the back cover 24, and the target surface T can be the surface of any one of the heat sink and the wireless charging coil.

[0273] 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, which will not be listed one by one here.

[0274] 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. In addition, 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 external 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.

[0275] Eighth embodiment:

[0276] See also Fig.28 In the eighth embodiment of the present application, the same contents as those in the first embodiment are not repeated here. The difference from the first embodiment is that the conductive circuit 42 is fixed to the middle frame 21. 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 middle frame 21.

[0277] Specifically, the battery compartment 26 is formed on the side of the middle frame 21 facing the rear cover 24, and the battery compartment 26 includes a bottom surface 261, which is the surface of the battery compartment 26 connected to the battery 10. Therefore, the conductive circuit 42 can be arranged on the bottom surface 261 of the battery compartment 26 to achieve the purpose of close contact with the battery 10. In other words, the target surface T is the bottom surface 261 of the battery compartment 26.

[0278] When the electronic device 100 is subjected to 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. In addition, the surface of the outer shell 11 of the battery 10 with a smaller area (including the inner surface 111 and the outer surface of the outer shell 11) is relatively strong compared with the large surface of the outer shell 11 of the battery 10 (including the inner surface 111 and the outer surface of the outer shell 11). Based on this, 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 set corresponding to the large surface of the outer shell 11 of the battery 10 with relatively low strength (including the inner surface 111 and the outer surface of the outer shell 11).

[0279] That is, the conductive circuit 42 may be disposed at a portion of the bottom surface 261 of the battery compartment 26 corresponding to the large surface of the housing 11 .

[0280] 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 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.

[0281] Ninth embodiment:

[0282] Please refer to Fig.29 and Fig.30 In the ninth embodiment of the present application, the same contents as those in the first embodiment are not described in detail. 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, the fixing form can be fixed to the target surface T located at the rear cover 24, or the conductive circuit 42 can be clamped in the rear cover 24.

[0283] See also Fig.29 In a possible implementation, the conductive circuit 42 may be disposed on the surface of the rear cover 24 facing the battery 10 , so as 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 .

[0284] See also Fig.30 In another possible embodiment, the back cover 24 includes a first cover body 241 and a second cover body 242, and the conductive circuit 42 is sandwiched between the first cover body 241 and the second cover body 242. Thus, the back cover 24 can cover the conductive circuit 42 to prevent it from being scratched, broken, or peeled, thereby improving the reliability of the conductive circuit 42. Exemplarily, the first cover body 241 is the part of the back cover 24 that can form the structure of the housing 20, and the second cover body 242 is the part of the back cover 24 that faces the battery 10.

[0285] When the electronic device 100 is subjected to 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. In addition, the surface of the outer shell 11 of the battery 10 with a smaller area (including the inner surface 111 and the outer surface of the outer shell 11) is relatively strong compared with the large surface of the outer shell 11 of the battery 10 (including the inner surface 111 and the outer surface of the outer shell 11). Based on this, 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 set corresponding to the large surface of the outer shell 11 of the battery 10 with relatively low strength (including the inner surface 111 and the outer surface of the outer shell 11).

[0286] That is, the conductive circuit 42 may be disposed on the surface of the rear cover 24 facing the battery 10 or in the rear cover 24 .

[0287] 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 to ensure the accuracy of the external damage detection of the battery 10. At the same time, since the structural strength of the back cover 24 has been greatly reduced when it is damaged, it cannot provide a guarantee for the safety performance of the battery 10. It can also be integrated on the back cover 24 to provide an early warning when the back cover 24 is broken, so that the user can 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 shell structure of the electronic device 100, setting the conductive circuit 42 thereon can diversify the performance of the back cover 24, reduce the adverse effects on other structural parts of the electronic device 100 caused by setting it on other structural parts, and the layout is reasonable.

[0288] With reference to the several specific embodiments mentioned above, it should be understood that the conductive circuit 42 in the embodiment of the present application has a variety of wiring position possibilities, diverse choices, and strong flexibility, and can be arranged and set on the battery 10 and / or the peripheral structure 60 near the battery 10 according to actual conditions.

[0289] See also Fig.31 The present application also provides a battery 10 damage detection method, which is applied to the electronic device 100 as described above, and the method at least comprises the following steps:

[0290] S100 : Detecting the voltage value of the connection point where the voltage-dividing resistor 41 and the conductive line 42 are connected.

[0291] S200: Determine whether the battery 10 has any external damage according to the voltage value of the connection point.

[0292] 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.

[0293] When the detected connection point voltage value is greater than or equal to the preset threshold, it is determined that there is external damage to the battery 10. Therefore, relevant strategies can be implemented to ensure the personal safety of the user.

[0294] 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%.

[0295] In another possible real-time method, 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.

[0296] The embodiments of the present application are introduced in detail above. Specific examples are used in this article 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 and core idea of ​​the present application. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method 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: A housing, the housing comprising a middle frame and a back cover located on one side of the middle frame; A battery, wherein the battery is fixed between the middle frame and the back cover; A trauma detection circuit, the trauma detection circuit comprising a conductive circuit and a processing circuit; The conductive circuit is arranged 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, and the peripheral structural member includes the middle frame, the back cover, or other structural members between the middle frame and the back cover; The processing circuit is used to detect the conduction condition of the conductive circuit, and the conduction condition of the conductive circuit is used to determine whether the battery has external damage; The conductive circuit includes a main circuit; The main circuit is a thermocouple formed by splicing two metal wires of different conductive materials; or, The main circuit is a thermal resistor composed of metal wires of a single conductive material.

2. The electronic device according to claim 1, wherein: The other structural parts are functional structures, at least part 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; The conductive circuit is arranged on a target surface, and the target surface is the inner surface of the shell, or the target surface is the outer surface of the shell, or the target surface is the surface of the functional structure, or the target surface is the surface of the back cover facing the battery, or the target surface is the bottom surface of the battery compartment.

3. The electronic device according to claim 1, wherein: 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.

4. The electronic device according to claim 2, characterized in that: The number of the functional structure is one; or, The number of the functional structures is multiple 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.

5. The electronic device according to claim 4, characterized in that: The types of functional structures include wrapping films, fireproof films, heat sinks, decorative films and wireless charging coils.

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

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

8. The electronic device according to any one of claims 1 to 7, characterized in that: The line width range and the line spacing range of the conductive circuit are both within the range of 0.001mm to 1.5mm.

9. The electronic device according to any one of claims 1 to 7, characterized in that: The conductive circuit includes 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.

10. The electronic device according to claim 9, characterized in that: 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 9, characterized in that: The main line is formed by a conductive line extending in a continuous curve; or, The main line is formed by at least two conductive lines extending in parallel and synchronously in a curved line.

12. The electronic device according to claim 9, characterized in that: 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; 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.

13. The electronic device according to claim 1, wherein: The trauma detection circuit also includes a voltage-dividing resistor, and the processing circuit includes an analog-to-digital converter and a control unit; One end of the voltage-dividing resistor is connected to the power supply voltage, the other end of the voltage-dividing resistor is connected to the first line 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 line 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.

14. The electronic device according to claim 13, characterized in that: The electronic device further includes a mainboard, and the voltage-dividing resistor and the processing circuit are arranged on the mainboard; or, The battery comprises a shell and a protection board arranged inside the shell, and the voltage dividing resistor and the processing circuit are arranged on the protection board.

15. The electronic device according to claim 13, characterized in that: When the conductive circuit is normally connected, 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 a preset threshold value; The control unit is used to determine that the battery has external damage when the connection point voltage value detected by the analog-to-digital converter is greater than or equal to a preset threshold.

16. The electronic device according to claim 15, characterized in that: The electronic device further comprises 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, and the control unit is used to: When it is determined that the battery has external damage, a prompt message is popped up through 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.

17. The electronic device according to claim 15, characterized in that: The control unit is used for: When it is determined that the battery has external damage, the charging power of the battery is controlled to be less than or equal to 50%.

18. A battery, characterized in that: The battery comprises: shell; A protection plate, the protection plate being arranged inside the housing; A trauma detection circuit, the trauma detection circuit comprising a conductive circuit and a processing circuit; The conductive circuit is arranged on the housing, the processing circuit is arranged on the protection board, the processing circuit is used to detect the conduction condition of the conductive circuit, and the conduction condition of the conductive circuit is used to judge whether the battery has external damage; The conductive circuit includes a main circuit; The main circuit is a thermocouple formed by splicing two metal wires of different conductive materials; or, The main circuit is a thermal resistor composed of metal wires of a single conductive material.

19. The battery according to claim 18, characterized in that The conductive circuit is fixed to the inner surface or the outer surface of the housing, and includes 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.

20. The battery according to claim 19, characterized in that The main line is formed by a conductive line extending in a continuous curve; or, The main line is formed by at least two conductive lines extending in parallel and synchronously in a curved line.

21. The battery according to claim 19, characterized in that 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; 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.

22. The battery according to claim 18, characterized in that The trauma detection circuit also includes a voltage-dividing resistor, and the processing circuit includes an analog-to-digital converter and a control unit; One end of the voltage-dividing resistor is connected to the power supply voltage, the other end of the voltage-dividing resistor is connected to the first line 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 line 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.

23. The battery according to claim 22, characterized in that When the conductive circuit is normally connected, 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 a preset threshold value; The control unit is used to determine that the battery has external damage when the connection point voltage value detected by the analog-to-digital converter is greater than or equal to a preset threshold.

24. The battery according to claim 23, characterized in that The control unit is used for: When it is determined that the battery has external damage, the charging power of the battery is controlled to be less than or equal to 50%.

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