Electronic device

Abstract

The invention discloses electronic equipment which comprises a machine shell, a battery, a main board, an auxiliary board, conductive circuits and a switch structure, the machine shell is provided with a through hole communicated with the interior and the exterior of the machine shell, the battery, the main board and the auxiliary board are all arranged in the machine shell, the main board is electrically connected with the battery, the auxiliary board is provided with a charging port, and the conductive circuits comprise a series circuit and a parallel circuit. The mainboard is used for controlling the switch structure to be communicated with the series circuit when the battery is in a low-temperature state, so that the series circuit is switched in and communicated between the battery and the charging port, and the battery is heated by utilizing the series circuit when current is introduced, so that the temperature of the battery can be increased when the battery is charged in a low-temperature environment; therefore, the speed of the battery entering a fast charging state can be accelerated, the charging speed of the battery is improved, the waiting time of a user is shortened, the charging experience of the user is improved, and the switch structure is further used for controlling the parallel circuit to be switched between the battery and the charging port when the battery is in a normal-temperature state or a high-temperature state.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to an electronic equipment. Background Art

[0002] With the development of technology, electronic products such as smart phones, tablet computers, Bluetooth headsets, smart watches, etc. have become indispensable electronic devices in people's daily life and entertainment. And with the popularization of electronic devices, the charging time of electronic devices has received more and more attention, and users hope that the charging time of their electronic devices will be short.

[0003] In order to shorten the charging time of electronic devices, most electronic devices currently have fast charging function. The condition for the battery of the electronic device to enter the fast charging state is that the temperature of the battery must be within the temperature range required by the fast charging.

[0004] However, when the battery temperature of an electronic device is lower than the temperature required for fast charging, it cannot enter the fast charging state and can only be charged with a smaller current. For example, in a low temperature environment, the ambient temperature is too low, resulting in the battery temperature being too low to meet the temperature required for fast charging. As a result, the battery can only support a small current pre-charge before charging. As a result, the battery cannot enter the fast charging state in a short period of time, which will affect the battery charging speed and cause the battery to be unable to be fully charged quickly, thereby affecting the user's charging experience. Summary of the invention

[0005] An embodiment of the present application discloses an electronic device that can quickly heat a battery when charging at a low temperature so that the temperature of the battery can be quickly increased, thereby accelerating the speed at which the battery enters a fast charging state, increasing the charging speed of the battery, shortening the user's waiting time, and improving the user's charging experience.

[0006] In order to achieve the above object, the present application discloses an electronic device, the electronic device comprising:

[0007] A casing, wherein the casing is provided with a through hole communicating with the inside and the outside of the casing;

[0008] A battery, wherein the battery is disposed inside the housing;

[0009] A mainboard, the mainboard is arranged inside the housing and is electrically connected to the battery;

[0010] A sub-board, the sub-board is arranged inside the housing, the sub-board is provided with a charging port, and the charging port is arranged at the through hole;

[0011] A conductive circuit, wherein the conductive circuit includes a series circuit and a parallel circuit; and

[0012] A switch structure, wherein the switch structure is used to control the series circuit to be connected between the battery and the charging port when the battery is in a low temperature state, so that current is passed through the series circuit to increase the temperature of the battery, and the switch structure is also used to control the parallel circuit to be connected between the battery and the charging port when the battery is in a normal temperature state or a high temperature state and the charging port is connected to current.

[0013] Compared with the prior art, the beneficial effects of this application are:

[0014] The electronic device provided in the embodiment of the present application is provided with a conductive circuit including a series circuit and a parallel circuit and a switch structure, so that when the battery is in a low temperature state, the switch structure is used to control the series circuit to be cut in and connected between the battery and the charging port, thereby utilizing the characteristics of the series circuit having a large impedance and being able to generate a large amount of heat when current is passed, and quickly heating the battery, so that the temperature of the battery can be quickly increased, so that the battery can quickly enter a state supporting large current charging, and perform fast charging, thereby improving the charging speed of the battery in a low temperature environment, shortening the charging time, and improving the user charging experience, or allowing the battery to output a large current to ensure that the electronic device can work normally, so as to improve the problem of abnormal shutdown of the electronic device in a low temperature environment; and when the battery is at normal temperature or high temperature, the switch structure is used to control the parallel circuit to be cut in and connected between the battery and the charging port, so as to utilize the characteristics of the parallel circuit having a small impedance and having a small amount of heat generation, and when the battery is charged through an external power supply of the charging port, the heat generation can be reduced, thereby avoiding the problem of heating during charging of the electronic device, and avoiding the situation where the charging speed is affected by the excessive temperature of the battery or the whole device, so as to improve the charging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 is a schematic diagram of the structure of an electronic device disclosed in an embodiment of the present application;

[0017] Figure 2 is a schematic diagram of the exploded structure of the electronic device disclosed in the embodiment of the present application;

[0018] Figure 3 It is a schematic diagram of the first internal structure of the electronic device disclosed in the embodiment of the present application;

[0019] Figure 4is a schematic diagram of a second internal structure of an electronic device disclosed in an embodiment of the present application;

[0020] Figure 5 It is a third internal structure schematic diagram of the electronic device disclosed in the embodiment of the present application;

[0021] Figure 6 is a fourth internal structure schematic diagram of the electronic device disclosed in the embodiment of the present application;

[0022] Figure 7 It is a fifth internal structure schematic diagram of the electronic device disclosed in the embodiment of the present application;

[0023] Figure 8 is a sixth internal structure schematic diagram of the electronic device disclosed in the embodiment of the present application;

[0024] Fig. 9 is a seventh internal structure schematic diagram of the electronic device disclosed in the embodiment of the present application;

[0025] Fig.10 is a schematic diagram of an eighth internal structure of an electronic device disclosed in an embodiment of the present application;

[0026] Fig.11 is a ninth internal structure schematic diagram of an electronic device disclosed in an embodiment of the present application;

[0027] Fig.12 is a tenth internal structure schematic diagram of an electronic device disclosed in an embodiment of the present application;

[0028] Fig.13 is an eleventh internal structure schematic diagram of the electronic device disclosed in the embodiment of the present application;

[0029] Fig.14 This is a twelfth internal structure schematic diagram of the electronic device disclosed in the embodiment of the present application;

[0030] Fig.15 is a thirteenth internal structure schematic diagram of the electronic device disclosed in the embodiment of the present application;

[0031] Fig.16 It is a fourteenth internal structure schematic diagram of the electronic device disclosed in the embodiment of the present application;

[0032] Fig.17 It is a fifteenth internal structure schematic diagram of the electronic device disclosed in the embodiment of the present application;

[0033] Fig.18 This is a sixteenth internal structure schematic diagram of the electronic device disclosed in the embodiment of the present application;

[0034] Fig.19It is a seventeenth internal structure schematic diagram of the electronic device disclosed in the embodiment of the present application;

[0035] Fig. 20 This is an eighteenth internal structure schematic diagram of the electronic device disclosed in the embodiment of the present application;

[0036] Fig.21 It is a nineteenth internal structure schematic diagram of the electronic device disclosed in the embodiment of the present application;

[0037] Fig. 22 is a schematic diagram of the twentieth internal structure of the electronic device disclosed in the embodiment of the present application;

[0038] Fig.23 This is the twenty-first internal structure schematic diagram of the electronic device disclosed in the embodiment of the present application.

[0039] Description of main reference numerals

[0040] 100- electronic equipment;

[0041] 10-housing; 11-display screen; 12-middle frame; 13-back cover; 14-through hole;

[0042] 20-battery;

[0043] 30-mainboard; 31-connection line;

[0044] 40-sub-board; 41-charging port;

[0045] 50-conductive circuit; 50a-series circuit; 50b-parallel circuit; 51-first connecting line; 511-first sub-connecting line; 512-second sub-connecting line; 513-normally closed switch; 513a-first sub-normally closed switch; 513b-second sub-normally closed switch; 52-conductive line; 52a-first conductive line; 52b-second conductive line; 52c-third conductive line; 52d-fourth conductive line; 52e-fifth conductive line; 521-first sub-conductive line; 522-second sub-conductive line; 53-second connecting line;

[0046] 60-switch structure; 61-switch; 61a-first switch; 61b-second switch; 611-first sub-switch; 612-second sub-switch;

[0047] 70-Flexible circuit board. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the exemplary embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the exemplary embodiments described are only part of the embodiments of the present application, not all of the embodiments. That is, the specific embodiments described here are only used to explain the present application, and are not used to limit the present application.

[0049] It should be noted that the brief description of terms in this application is only for the convenience of understanding the implementation methods described below, and is not intended to limit the implementation methods of this application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the technical field of this application. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments, and are not intended to limit this application.

[0050] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0051] The terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, without departing from the scope of this application, a first switch may be referred to as a second switch, and similarly, a second switch may be referred to as a first switch. Both the first switch and the second switch are switches, but they are not the same switch.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0053] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0054] In the description of the present application, it should be noted that the singular forms of "a", "an" and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the existence of the stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the existence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0055] In addition, the term "and / or" used in this specification includes any and all combinations of the relevant listed items. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone. That is, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0056] With the development of technology, various electronic products, such as smart phones, tablet computers, Bluetooth headsets, smart watches, etc., are becoming more and more popular among consumers. People can use electronic devices for work, entertainment, study, etc., making these electronic products gradually become indispensable electronic devices in people's daily life and entertainment.

[0057] When the power of an electronic device is low, it needs to be charged. With the gradual popularization of fast charging technology, more and more electronic devices have fast charging functions to shorten the charging time of electronic devices.

[0058] However, when electronic devices are in a low-temperature environment, the temperature of the battery will be too low due to the low ambient temperature, which will increase the internal resistance of the battery itself. On the one hand, when the electronic device is charging, the battery can only support a small current pre-charge before charging, which will cause the battery to be unable to enter the fast charging state in a short time, thereby affecting the battery charging speed, causing the battery to be unable to be fully charged quickly, thereby affecting the user experience; on the other hand, it will cause the battery to be unable to output a large current and cannot meet the current required for the normal operation of the electronic device, thereby causing the electronic device to work abnormally or even shut down, greatly reducing the user experience.

[0059] In view of this, an embodiment of the present application provides an electronic device that can increase the battery temperature in a low temperature environment to ensure the charging and discharging performance of the battery. Specifically, a series circuit is electrically connected between the battery and the charging port to utilize the characteristics of the series circuit having a large impedance and being able to generate a large amount of heat when current is passed through it, so as to quickly heat the battery, so that the battery temperature can be quickly increased, and the battery can quickly enter a state of supporting large current charging for fast charging, thereby increasing the charging speed of the battery in a low temperature environment, shortening the charging time, and improving the user's charging experience, or allowing the battery to output a large current to ensure that the electronic device can work normally, so as to improve the problem of abnormal shutdown of the electronic device in a low temperature environment.

[0060] However, the applicant has found in practice that although the series circuit can generate a large amount of heat when charging the battery in a low temperature environment, accelerating the heating of the battery so that the temperature of the battery rises rapidly, as the charging time increases, the temperature of the battery will gradually rise, allowing the battery to enter a high current charging state, for example, the temperature of the battery rises to the temperature required for the battery to enter a fast charging state; or, when charging the battery in a normal temperature environment or a high temperature environment, the battery can be charged with a large current at this time. However, in the above process, not only will the battery heat up significantly and generate a large amount of heat, but the series circuit will also heat up significantly and generate a large amount of heat when a large current is passed through it, which makes it easier to cause the battery or the whole machine to overheat, which in turn causes the electronic device to heat up during charging, giving the user a bad user experience, or triggering high temperature protection, affecting the charging speed of the electronic device.

[0061] Therefore, the present application also sets up a parallel circuit and a switch structure, so that when the battery is in a low temperature state, the switch structure is used to control the series circuit to cut in and connect between the battery and the charging port, thereby utilizing the characteristics of the series circuit having a large impedance and being able to generate a large amount of heat when the current is passed, and quickly heating the battery, so that the temperature of the battery can be quickly increased, so that the battery can quickly enter a state that supports large current charging, and perform fast charging, thereby increasing the charging speed of the battery in a low temperature environment, shortening the charging time, and improving the user charging experience, or allowing the battery to output a large current to ensure that the electronic device can work normally, so as to improve the problem of abnormal shutdown of the electronic device in a low temperature environment; and when the battery is at normal temperature or high temperature, the switch structure is used to control the parallel circuit to cut in and connect between the battery and the charging port, so as to utilize the characteristics of the parallel circuit having a small impedance and a small amount of heat generation, and reduce the heat generation when charging the battery, thereby avoiding the problem of charging heating in the electronic device, and avoiding the situation where the charging speed is affected by the excessive temperature of the battery or the whole machine, so as to improve the charging efficiency.

[0062] The following will be combined with the drawings in some embodiments of the present application to clearly and completely describe the technical solutions in some embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0063] See also Figure 1 , Figure 1 It is shown that the electronic device in the present application is a smart phone, but it can be understood that the drawings of the present application are only illustrative of the electronic device 100 being a smart phone, and do not limit the electronic device 100 of the present application to only being a smart phone.

[0064] In other implementations of the present application, the electronic device 100 may also be a laptop computer, a tablet computer, a television, a smart wearable device (such as a smart watch, a smart wristband, smart glasses, ear phones, etc.), a personal digital assistant (PDA), an e-book reader, or other electronic products with a charging function, which is not specifically limited in the present application.

[0065] It should be known that when the electronic device 100 adopts a smart phone, the electronic device 100 can be an ordinary mobile phone or a foldable mobile phone, and the present application does not specifically limit the specific form of the electronic device 100.

[0066] To facilitate explanation of the positions of various components in the electronic device 100, the embodiment of the present application exemplarily establishes a three-dimensional coordinate system based on the electronic device 100, wherein the x-axis direction is the length direction of the electronic device 100, the y-axis direction is the width direction of the electronic device 100, and the z-axis direction is the thickness direction of the electronic device 100.

[0067] See also Figure 2 , Figure 2 This is a schematic diagram of the decomposed structure of an electronic device in a specific embodiment. The electronic device 100 provided in the embodiment of the present application includes a housing 10, which is mainly used to fix and protect electronic devices or structures arranged inside the housing 10.

[0068] Optionally, the housing 10 may include a display screen 11, a middle frame 12, and a back cover 13 sequentially arranged along the thickness direction of the electronic device 100, one side of the middle frame 12 is connected to the edge of the display screen 11, and the other side of the middle frame 12 is connected to the edge of the back cover 13, so as to form a complete appearance structure of the electronic device 100. The display screen 11, the middle frame 12, and the back cover 13 form an internal space of the electronic device 100, and in this embodiment, the middle frame 12 and the back cover 13 may be a separate structure or an integrated structure.

[0069] The electronic device 100 provided in the embodiment of the present application further includes a battery 20, a main board 30 and a sub-board 40, which are all arranged in the internal space of the housing 10, and the battery 20, the main board 30 and the sub-board 40 can be installed on the middle frame 12, so that the middle frame 12 can provide support and protection for various electronic devices inside the electronic device 100. The main board 30 is electrically connected to the battery 20 and the sub-board 40 respectively.

[0070] It should be noted that, in the implementation of this application, Figure 2 The electronic device 100 is provided with a battery 20, a main board 30 and a sub-board 40 as an example for illustrative description, and the electronic device 100 of the present application is not limited to being provided with only a battery 20, a main board 30 and a sub-board 40. In other implementations of the present application, the electronic device 100 may also be provided with a camera module, a microphone, a fingerprint module, a card tray, a motor and various sensors and other devices, and the present application does not make specific limitations on this.

[0071] Those skilled in the art will appreciate that the structures illustrated in the embodiments of the present application do not constitute specific limitations on the electronic device 100. In other possible implementations of the present application, the electronic device 100 may include fewer components than those listed above, or more components, or combine certain components, or separate certain components, or arrange the components differently.

[0072] See also Figure 2 The housing 10 provided in the embodiment of the present application is provided with a through hole 14 communicating with its internal space and external space, the main board 30 is electrically connected to the battery 20, and the sub-board 40 is provided with a charging port 41 electrically connected to the main board 30. For example, the charging port 41 can be a universal serial bus (USB) interface. The charging port 41 is arranged at the through hole 14 so that a charger can be inserted into the charging port 41 to charge the battery 20.

[0073] That is, when the battery 20 is charged by wire, the charger is inserted into the charging port 41, and the external current enters from the charging port 41, reaches the sub-board 40 and the main board 30 in sequence, and reaches the battery 20 through the connection line 31 on the main board 30, so as to charge the battery 20. The charging process can be a fast charging route or a normal charging route, which is not specifically limited in this application.

[0074] Optionally, see Figure 3 , Figure 3 Schematic diagram of the internal structure of an electronic device in a specific embodiment. A connecting line 31, such as a charge pump circuit (Charge Pump), is provided on the main board 30. The connecting line 31 is electrically connected to the battery 20 and the charging port 41 respectively. When the battery 20 is charged by wire, the charger is inserted into the charging port 41 of the sub-board 40. The external current enters from the charging port 41 on the sub-board 40, reaches the sub-board 40 and the main board 30 in turn, and reaches the battery 20 through the connecting line 31 to realize charging of the battery 20.

[0075] like Figure 3 As shown, the electronic device 100 provided in the embodiment of the present application also includes a conductive circuit 50, and the conductive circuit 50 includes a series circuit 50a, which is connected between the battery 20 and the charging port 41, that is, the series circuit is connected between the connecting circuit 31 and the charging port 41 of the sub-board 40 to achieve electrical connection between the charging port 41 and the connecting circuit 31, so that when the charger is inserted into the charging port 41, the external current can come in from the charging port 41, reach the series circuit 50a and the connecting circuit 31 in turn, and reach the battery 20 through the connecting circuit 31 to achieve charging of the battery 20.

[0076] In the above scheme, when the battery 20 is in a low temperature state, the series line 50a can be used to generate a large amount of heat by taking advantage of its large impedance when current is passed through it, so that the temperature of the battery 20 can be quickly increased, and the battery 20 can quickly enter a state that supports large current charging, and perform fast charging, thereby increasing the charging speed of the battery 20 in a low temperature environment, shortening the charging time, and improving the user's charging experience, or allowing the battery 20 to output a large current to ensure that the electronic device 100 can work normally, so as to improve the problem of abnormal shutdown of the electronic device 100 in a low temperature environment. Among them, the battery 20 being in a low temperature state can be understood as the state of the battery 20 in a low temperature environment, and the temperature of the battery 20 at this time is lower than 15°C, for example, the temperature of the battery 20 is in the range of -15°C-15°C.

[0077] Specifically, when the battery 20 is in a low temperature state, if the battery 20 needs to be charged, the charger can be inserted into the charging port 41, and the external current flows into the series line 50a through the charging port 41 and the sub-board 40, and flows into the main board 30 and the connecting line 31 through the series line 50a, and finally flows into the battery 20 through the connecting line 31, so that the battery 20 is in a charging state. In this process, although only low-current charging is supported in the early stage of charging, due to the large impedance of the series line 50a, the series line 50a can generate significant heat when current is passed through, and the heat generation increases, so that the heat generated by the series line 50a can be used to quickly heat the battery 20, so that the temperature of the battery 20 can rise, thereby accelerating the speed at which the battery 20 enters a state capable of high-current charging, so that the battery 20 can enter a normal charging state, such as a fast charging state or a normal charging state, thereby increasing the charging speed of the battery 20, shortening the user's waiting time, and improving the user's charging experience.

[0078] If the battery 20 still has available power, but the output current is too small due to the low temperature of the battery 20, and the battery 20 cannot output a large current, causing the electronic device 100 to work abnormally or even shut down, the OTG (On-The-Go) function of the electronic device 100 can be used to put the battery 20 in a discharge state. At this time, the battery 20 can output current, and the current of the battery 20 can flow into the series circuit 50a through the connecting line 31 and the mainboard 30. In this process, the series circuit 50a can also generate significant heat, so that the heat generated by the series circuit 50a can be used to quickly heat the battery 20, so that the temperature of the battery 20 can rise, so that the battery 20 can output a large current to support the normal operation of the electronic device 100, such as allowing the electronic device 100 to start up and run normally, avoiding the electronic device 100 from shutting down, and allowing the power of the battery 20 to be fully utilized by the electronic device 100.

[0079] It can be seen that the electronic device 100 in the present application can realize automatic heating of the low-temperature battery 20 to prevent the low temperature from affecting the charging and discharging of the battery 20. Therefore, the performance and safety of the electronic device 100 can be effectively improved, and the user experience can be improved. Moreover, the series circuit 50a in the present application can be used as part of the charging circuit of the electronic device 100, and can also be used as a heating circuit for heating the battery 20, thereby reusing the series circuit 50a, and serving two purposes. Therefore, the cost of the electronic device 100 in the present application can be lower, the electronic device 100 can be thinner, and the implementation complexity is also lower.

[0080] See also Figure 3The conductive circuit provided in the embodiment of the present application also includes a parallel circuit 50b, and the electronic device 100 also includes a switch structure 60, which is used to control the series circuit 50a to be connected between the connecting circuit 31 and the charging port 41 when the battery 20 is in a low temperature state, so that the series circuit 50a passes current to heat the battery 20, thereby increasing the temperature of the battery, and the switch structure 60 is also used to control the parallel circuit 50b to be connected between the connecting circuit 31 and the charging port 41 when the battery 20 is in a normal temperature state or a high temperature state.

[0081] Specifically, when the battery 20 is in a low temperature state, the switch structure 60 is connected to the series line 50a, so that the series line 50a is connected between the connecting line 31 and the charging port 41, and the current is connected through the charging port 41. The external current can flow into the series line 50a and reach the battery 20 through the connecting line 31 to realize charging of the battery 20. In this process, since the impedance of the series line 50a is large, the impedance increases, the heat generation increases, and the battery 20 can be quickly heated, so that the temperature of the battery 20 can be quickly heated, so that the battery 20 can quickly enter a state that supports large current charging, for example, the battery 20 can be charged. When the temperature reaches the fast charging requirement, the battery 20 can be fast charged, thereby increasing the charging speed; or through the OTG (On-The-Go) function of the electronic device 100, the battery 20 can be put into a discharge state, and the current output by the battery 20 can flow into the series circuit 50a through the connecting line 31, so that the series circuit 50a generates heat. Since the impedance of the series circuit 50a is large and the heat generation is increased, the battery 20 can be quickly heated, so that the temperature of the battery 20 can be quickly increased, so that the battery 20 can output a large current to support the normal operation and use of the electronic device 100, and avoid the electronic device 100 from shutting down.

[0082] When the temperature of the battery 20 rises from low temperature to normal temperature or high temperature, or when the battery 20 is at normal temperature or high temperature, the temperature of the battery 20 meets the temperature required for fast charging, and the battery 20 can support high-current charging. The switch structure 60 is connected to the parallel line 50b, so that the parallel line 50b is connected between the connecting line 31 and the charging port 41, and the current is connected through the charging port 41. The external current flows into the parallel line 50b and reaches the battery 20 through the connecting line 31 to realize the charging of the battery 20. In this process, since the impedance of the parallel line is relatively small, the impedance is reduced. In the process of high-current charging of the battery 20, the overall heat generation of the parallel line 50b under the same current is greatly reduced, and the heat generation is reduced, thereby effectively improving the problem of heating during charging of the electronic device 100, and at the same time, it can also avoid the situation where the charging speed is affected by the excessive temperature of the battery 20 or the whole machine, so as to improve the charging efficiency.

[0083] It can be seen that the present application sets a conductive circuit including a series circuit and a parallel circuit, and matches it with a switch structure, and can switch the series circuit 50a to be connected between the connection circuit 31 and the charging port 41, or the parallel circuit 50b to be connected between the connection circuit 31 and the charging port 41 according to the temperature of the battery 20. In this way, when the battery 20 is in a low temperature state, the series circuit 50a can be connected between the connection circuit 31 and the charging port 41, so as to utilize the characteristics of the series circuit 50a having a large impedance and being able to generate a large amount of heat to quickly heat the battery 20, so that the battery 20 can quickly enter a state that supports large current charging, so as to improve the battery 20 in a low temperature environment. The charging speed is increased, the charging time is shortened, or the battery 20 outputs a large current to ensure that the electronic device 100 can work normally, so as to improve the problem of abnormal shutdown of the electronic device 100 in a low temperature environment; and when the battery 20 is at normal temperature or high temperature, the parallel line 50b is connected between the connecting line 31 and the charging port 41 to utilize the characteristics of the parallel line 50b with small impedance and small heat generation. When the battery 20 is charged, the heat generation of the conductive line is reduced, thereby avoiding the problem of charging heating of the electronic device 100 and avoiding the situation where the charging speed is affected by the excessive temperature of the battery 20 or the whole device, so as to improve the charging efficiency.

[0084] Among them, the battery 20 being in a normal temperature state or a high temperature state can be understood as the state of the battery 20 in a normal temperature environment or a high temperature environment. When the battery 20 is in a normal temperature state, the temperature of the battery 20 at this time is higher than or equal to 15°C, and lower than or equal to 25°C, that is, the temperature of the battery 20 is in the range of 15°C-25°C; when the battery 20 is in a high temperature state, the temperature of the battery 20 at this time is higher than 25°C, for example, the temperature of the battery 20 is in the range of 25°C-50°C.

[0085] In some embodiments, Figure 3 As shown, the electronic device 100 also includes a flexible circuit board 70. For example, one end of the flexible circuit board 70 can be electrically connected to the secondary board 40 through a first connector (not shown), and the other end of the flexible circuit board 70 can be electrically connected to the main board 30 through a second connector (not shown), wherein the first connector and the second connector can both be board-to-board connectors. The connection between the flexible circuit board 70 and the secondary board 40 and the connection between the flexible circuit board 70 and the main board 30 are realized by the above method, so that the connection method between the flexible circuit board 70 and the secondary board 40 and the connection method between the flexible circuit board 70 and the main board 30 can be relatively simple and easy to operate.

[0086] Optionally, the flexible circuit board 70 can be a single piece, and both the series circuit 50a and the parallel circuit 50b can be arranged on the flexible circuit board 70. In this way, during assembly, one end of the flexible circuit board 70 can be plugged into the secondary board 40, and the other end can be plugged into the main board 30, so that the series circuit 50a and the parallel circuit 50b can be electrically connected between the main board 30 and the secondary board 40, thereby improving the installation efficiency of the series circuit 50a and the parallel circuit 50b. It can be understood that in other embodiments, the series circuit 50a and the parallel circuit 50b can also be arranged on different flexible circuit boards.

[0087] An exemplary example is Figure 3 As shown, the switch structure 60 can be disposed on a flexible circuit board. Figures 4 to 6 As shown, the switch structure 60 may be disposed on the main board 30 and / or the sub-board 40 .

[0088] Considering that the main board 30 and the sub-board 40 are usually hard boards and the flexible circuit board 70 is a soft board, it is preferred that the switch structure 60 can be set on the main board 30 and / or the sub-board 40 to facilitate the installation and fixation of the switch structure 60.

[0089] In some embodiments, the battery 20, the main board 30 and the sub-board 40 are arranged along the length direction of the electronic device 100, and the battery 20 is located between the main board 30 and the sub-board 40, and the battery 20 is in contact with the series line 50a. Therefore, the heat generated by the series line 50a can be quickly transferred to the battery 20, so that the temperature of the battery 20 rises quickly.

[0090] See also Figure 7 The conductive circuit 50 provided in the embodiment of the present application further includes at least two first connection lines 51 and at least three conductive lines 52. For example, the first connection lines 51 may be two, three, four or five, etc., and the conductive lines 52 may be three, four, five, six, seven, etc. Two adjacent conductive lines 52 are connected through a first connection line 51. The switch structure 60 includes at least two switching switches 61, and the switching switches 61 are electrically connected between two adjacent conductive lines 52, and the two adjacent switching switches 61 are respectively located on both sides of the conductive line 52 along the line length direction.

[0091] Among them, when the battery 20 is in a low temperature state, at least two switching switches 61 are disconnected so that at least three conductive wires 52 form a series circuit; the impedance of the series circuit is larger than the impedance of a single conductive wire 52, thereby increasing the heat generation, so that the temperature of the battery 20 can be quickly heated up, so that the battery 20 can quickly enter a state that can support large current charging, which is beneficial to improve the charging speed; or the battery 20 can output a large current to support the normal operation and use of the electronic device 100 to avoid shutting down the electronic device 100.

[0092] When the battery 20 is at room temperature or high temperature, at least two switches 61 are closed to form a parallel circuit with at least three conductive wires 52. The impedance of the parallel circuit is smaller than that of a single conductive wire 52. When the impedance is reduced, the overall heat generation of the multiple conductive wires 52 under the same current is greatly reduced during high current charging, and the heat generation is reduced, thereby effectively improving the problem of heating during charging of the electronic device 100. At the same time, it can also avoid the situation where the charging speed is affected by the excessive temperature of the battery 20 or the whole device, so as to improve the charging efficiency.

[0093] It can be seen that the present application sets at least two first connecting lines 51 and at least three conductive lines 52 to match the design of at least two switching switches 61. By controlling the on and off of the switching switches 61, the at least three conductive lines 52 can be switched between forming a series circuit and forming a parallel circuit, so as to facilitate adjusting the series-parallel relationship of the at least three conductive lines 52 according to the temperature of the battery 20. When the battery 20 is in a low temperature state, the at least three conductive lines 52 can be connected in series to form a series circuit, so as to utilize the characteristics of the series circuit having a large impedance and being able to generate a large amount of heat to quickly heat the battery 20, so that the battery 20 can quickly enter a state supporting large current charging. In order to improve the charging speed of the battery 20 in a low temperature environment, shorten the charging time, or allow the battery 20 to output a large current to ensure that the electronic device 100 can work normally, so as to improve the problem of abnormal shutdown of the electronic device 100 in a low temperature environment; when the battery 20 is at room temperature or high temperature, multiple conductive wires 52 are connected in parallel to form a parallel circuit, so as to utilize the characteristics of the parallel circuit with small impedance and small heat generation. When charging the battery 20, the heat generation of the conductive circuit is reduced, which can avoid the problem of charging heating of the electronic device 100 and avoid the situation where the charging speed is affected by the excessive temperature of the battery 20 or the whole device, so as to improve the charging efficiency.

[0094] Among them, the battery 20 has a first side and a second side opposite to each other in the thickness direction of the electronic device 100, the first side is arranged toward the back cover, and the second side is arranged away from the back cover, and the plurality of conductive wires 52 may all be located on the first side of the battery 20, or may all be located on the second side of the battery 20, or a part of the conductive wires 52 may be located on the first side of the battery 20, and another part of the conductive wires 52 may be located on the second side of the battery 20, and the present application does not make any specific limitation on this.

[0095] In this application, if Figure 7 As shown, at least two first connection lines 51 include a first sub-connection line 511 and a second sub-connection line 512, wherein the first sub-connection line 511 is located on one side of the conductive line 52 along its line length direction, and the second sub-connection line 512 is located on the other side of the conductive line 52 along its line length direction.

[0096] An exemplary example is Figure 7 As shown, the flexible circuit board 70 can be multiple pieces, and the number of the flexible circuit board 70 is the same as the number of the conductive wires 52, wherein one conductive wire 52 is arranged on one flexible circuit board 70, so that the multiple conductive wires 52 can be dispersed at different positions of the battery 20, so that the heat generated by the conductive wires 52 when current is passed can be dispersed at different positions of the battery 20, avoiding the heat generated by the conductive wires 52 from being concentrated at a certain position of the battery 20, especially when the battery 20 is charged in a low temperature environment, the battery 20 can be evenly heated, so that the battery 20 is evenly heated, so that the temperature of the battery 20 can rise faster, so that the battery 20 can enter a large current charging state more quickly, thereby greatly improving the charging speed of the battery 20 and shortening the charging time.

[0097] In an exemplary embodiment, the first sub-connection line 511 is disposed on the main board 30, and the second sub-connection line 512 is disposed on the sub-board 40. Thus, the first sub-connection line 511 and the second sub-connection line 512 do not occupy the space of the flexible circuit board 70, so that the conductive line 52 can fully utilize the space of the flexible circuit board 70 to form a relatively long conductive line 52, which is conducive to further increasing the impedance of the conductive line and increasing the heat generation.

[0098] Optionally, multiple flexible circuit boards 70 can be evenly spaced along the circumference of the battery 20, so that when current is passed through the conductive wire 52, the battery 20 can be heated more evenly. In a low temperature environment, the temperature of the battery 20 can rise faster, so that the battery 20 can enter a state where it can be charged with a large current more quickly, thereby greatly improving the charging speed of the battery 20 and shortening the charging time, or allowing the battery 20 to recover to a state where it can output a large current more quickly, thereby ensuring that the electronic device 100 can operate normally.

[0099] It can be understood that when the multiple conductive wires 52 are all located on the side of the battery 20 facing the back cover 13, or are all located on the side of the battery 20 facing away from the back cover 13, the multiple flexible circuit boards 70 are evenly spaced along the circumference of the battery 20, and the multiple flexible circuit boards 70 are evenly spaced along the width direction of the electronic device 100.

[0100] Another exemplary example is Figure 8 and Fig. 9 As shown, the flexible circuit board 70 can be one piece, and the plurality of conductive wires 52 are all arranged on the flexible circuit board 70, that is, the plurality of conductive wires 52 are integrated on one flexible circuit board 70. During assembly, one end of the flexible circuit board 70 can be plugged into the sub-board 40, and the other end can be plugged into the main board 30, so that each conductive wire 52 can be electrically connected between the main board 30 and the sub-board 40, thereby improving the installation efficiency of the plurality of conductive wires 52.

[0101] In an exemplary embodiment, Figure 8 As shown, the first sub-connection line 511 and the second sub-connection line 512 can be arranged on the flexible circuit board 70; or Fig. 9 As shown, the first sub-connection line 511 can be arranged on the main board 30, and the second sub-connection line 512 can be arranged on the sub-board 40. Of course, in other embodiments, the first sub-connection line 511 can be arranged on the main board 30, and the second sub-connection line 512 can be arranged on the flexible circuit board 70, or the first sub-connection line 511 can be arranged on the flexible circuit board 70, and the second sub-connection line 512 can be arranged on the sub-board 40.

[0102] Preferably, the first sub-connection line 511 is arranged on the main board 30, and the second sub-connection line 512 is arranged on the sub-board 40. Thus, the first sub-connection line 511 and the second sub-connection line 512 will not occupy the space of the flexible circuit board 70, so that the conductive line 52 can fully utilize the space of the flexible circuit board 70 to form a relatively long conductive line 52, which is conducive to further increasing the impedance of the conductive line and increasing the heat generation.

[0103] Alternatively, if Figure 8 and Fig. 9 As shown, the shape of the first connecting line 51 is a straight line, or as Fig.10 and Fig.11 As shown, the shape of the first connecting line 51 can also be a curve, such as an arc or a broken line. The first connecting line 51 is a curve. When the spacing between the two conductive lines 52 is the same, compared with the straight first connecting line 51, the curved first connecting line 51 has a longer line length, a greater impedance, and a greater heat generation, which can increase the temperature of the battery 20 more quickly.

[0104] In some embodiments, Figure 12 to Figure 14 As shown, when the number of the conductive lines 52 is at least four, for example, when the number of the conductive lines is four, five, six, seven, etc., the conductive circuit 50 further includes a second connecting line 53. When at least two switching switches 61 are disconnected, at least three conductive lines 52 are connected to form a series circuit through the first connecting line 51, and the remaining conductive lines 52 are connected in parallel in the series circuit through the second connecting line 53. When at least two switching switches 61 are closed, so that at least four conductive lines 52 form a parallel circuit, that is, when all switching switches 61 are closed, all conductive lines 52 are connected in parallel to form a parallel circuit.

[0105] The first exemplary one is Fig.12 As shown, there are four conductive wires 52, and the four conductive wires 52 are arranged along Fig.12From left to right in the figure, there are the first conductive line 52a, the second conductive line 52b, the third conductive line 52c and the fourth conductive line 52d, there are two switching switches 61, there are two first connecting lines 51, there are two second connecting lines 53, the first conductive line 52a and the second conductive line 52b are connected through a first connecting line 51, and the first conductive line 52a and the second conductive line 52b are electrically connected to a switching switch 61, the second conductive line 52b and the third conductive line 52c are connected through a first connecting line 51, and the second conductive line 52b and the third conductive line 52c are electrically connected to a switching switch 61, and both ends of the fourth conductive line 52d are respectively connected in parallel to the third conductive line 52c through the second connecting lines 53. When the two switching switches 61 are opened, the first conductive line 52a, the second conductive line 52b, and the third conductive line 52c form a series circuit, and when the two switching switches 61 are closed, the first conductive line 52a, the second conductive line 52b, the third conductive line 52c and the fourth conductive line 52d form a parallel circuit.

[0106] The second exemplary one is Fig.13 As shown, there are four conductive wires 52, and the four conductive wires 52 are arranged along Fig.13 From left to right in the figure, the first conductive line 52a, the second conductive line 52b, the third conductive line 52c and the fourth conductive line 52d are sequentially arranged. There are two switching switches 61, two first connecting lines 51 and one second connecting line 53. The first conductive line 52a and the third conductive line 52c are connected through one first connecting line 51, and the third conductive line 52c and the fourth conductive line 52d are connected through one first connecting line 51. One end of the second conductive line 52b is connected to the third conductive line 52c through the second connecting line 53, and the other end of the second conductive line 52b is connected to the first connecting line 51 connected between the first conductive line 52a and the third conductive line 52c to be connected in parallel to the third conductive line 52c. The first conductive line 52a and the second conductive line 52b are electrically connected to a switching switch 61, and the third conductive line 52c and the fourth conductive line 52d are electrically connected to a switching switch 61. When the two switching switches 61 are opened, the first conductive line 52a, the third conductive line 52c, and the fourth conductive line 52d form a series circuit, and when the two switching switches 61 are closed, the first conductive line 52a, the second conductive line 52b, the third conductive line 52c, and the fourth conductive line 52d form a parallel circuit.

[0107] It can be understood that in other embodiments, the other end of the second conductive line 52 b may also be connected to the third conductive line 52 c through the second connecting line 53 .

[0108] The third exemplary one is, Fig.14 As shown, there are four conductive wires 52, and the four conductive wires 52 are arranged along Fig.14From left to right in the figure, the first conductive line 52a, the second conductive line 52b, the third conductive line 52c and the fourth conductive line 52d are sequentially arranged. There are two switching switches 61, two first connecting lines 51 and one second connecting line 53. The first conductive line 52a and the third conductive line 52c are connected through a first connecting line 51, and the third conductive line 52c and the fourth conductive line 52d are connected through a first connecting line 51. One end of the second conductive line 52b is connected to the first conductive line 52a through the second connecting line 53, and the other end of the second conductive line 52b is connected to the first connecting line 51 connected between the first conductive line 52a and the third conductive line 52c to be connected in parallel to the third conductive line 52c. The second conductive line 52b and the third conductive line 52c are electrically connected to a switching switch 61, and the third conductive line 52c and the fourth conductive line 52d are electrically connected to a switching switch 61. When the two switching switches 61 are opened, the second conductive line 52b, the third conductive line 52c, and the fourth conductive line 52d form a series circuit, and when the two switching switches 61 are closed, the first conductive line 52a, the second conductive line 52b, the third conductive line 52c, and the fourth conductive line 52d form a parallel circuit.

[0109] It can be understood that in other embodiments, the other end of the second conductive line 52 b may also be connected to the first conductive line 52 a through the second connecting line 53 .

[0110] The fourth exemplary one is, Fig.15 As shown, there are five conductive wires 52, and the five conductive wires 52 are arranged along Fig.15 From left to right in the figure, there are the first conductive line 52a, the second conductive line 52b, the third conductive line 52c, the fourth conductive line 52d and the fifth conductive line 52e, there are two switching switches 61, there are two first connecting lines 51, and there are four second connecting lines 53. The first conductive line 52a and the second conductive line 52b are connected through a first connecting line 51, and the first conductive line 52a and the second conductive line 52b are electrically connected to a switching switch 61. The second conductive line 52b and the third conductive line 52c are connected through a first connecting line 51, and the second conductive line 52b and the third conductive line 52c are electrically connected to a switching switch 61. Both ends of the fourth conductive line 52d are connected in parallel to the third conductive line 52c through the second connecting line 53, and both ends of the fifth conductive line 52e are connected in parallel to the fourth conductive line 52d through the second connecting line 53. When the two switching switches 61 are disconnected, the first conductive line 52a, the second conductive line 52b, and the third conductive line 52c form a series circuit, and when the two switching switches 61 are closed, the first conductive line 52a, the second conductive line 52b, the third conductive line 52c, the fourth conductive line 52d, and the fifth conductive line 52e form a parallel circuit.

[0111] It can be understood that in other embodiments, such as Fig.16 As shown, both ends of the fourth conductive line 52d can be connected in parallel to the third conductive line 52c through the second connection line 53, and both ends of the fifth conductive line 52e can be connected in parallel to the third conductive line 52c through the second connection line 53. When the two switching switches 61 are opened, the first conductive line 52a, the second conductive line 52b, and the third conductive line 52c form a series circuit, and when the two switching switches 61 are closed, the first conductive line 52a, the second conductive line 52b, the third conductive line 52c, the fourth conductive line 52d, and the fifth conductive line 52e form a parallel circuit.

[0112] In some embodiments, Fig.17 and Fig.18 As shown, when the number of conductive lines 52 is odd, for example, three, five, seven, etc., any two adjacent conductive lines 52 are connected through a first connecting line 51, and any two adjacent conductive lines 52 are connected through a switching switch 61. When all the switching switches 61 are disconnected, any two adjacent conductive lines 52 are connected through the first connecting line 51 to form a series circuit. When all the switching switches 61 are closed, all the conductive lines 52 are connected in parallel to form a parallel circuit.

[0113] It can be seen that when the number of the conductive wires 52 is at least five and the number is an odd number, for example, when the conductive wires 52 are five, seven, etc., some of the conductive wires 52 can be connected in series to form a series circuit, and the other part of the conductive wires 52 can be connected in parallel in the series circuit (such as Fig.15 and Fig.16 As shown), all the conductive wires 52 may be connected in series to form a series circuit (as shown Fig.17 and Fig.18 shown).

[0114] Considering that after some of the conductive wires 52 are connected in series to form a series circuit, the impedance and heat generation can be increased. On this basis, the remaining conductive wires 52 are connected in parallel in the series circuit, which not only increases the number of conductive wires 52, but also reduces the impedance of the series circuit and reduces the heat generation. Therefore, in the present application, it is preferred that the conductive wire 52 is singular, and any two adjacent conductive wires 52 are connected through a first connecting wire 51 to form a series circuit. In this way, the number of conductive wires 52 can be reduced while ensuring the heat generation of multiple conductive wires 52, thereby saving costs.

[0115] like Fig.17 and Fig.18As shown, in the present application, at least two switching switches 61 include a first switching switch 61a and a second switching switch 61b, the first switching switch 61a is located on one side of the conductive line 52 along its line length direction, that is, the first switching switch 61a and the first sub-connection line 511 are located on the same side of the conductive line 52 along its line length direction, and the second switching switch 61b is located on the other side of the conductive line 52 along its line length direction, that is, the second switching switch 61b and the second sub-connection line 512 are located on the same side of the conductive line 52 along its line length direction, and the second switching switch 61b and the second sub-connection line 512 are located on the same side of the conductive line 52 along its line length direction.

[0116] Among them, Fig.17 and Fig.18 As shown, the first switch 61a can be arranged on the main board 30, and the second switch 61b can be arranged on the sub-board 40. Of course, in other embodiments, the first switch 61a and the second switch 61b can be arranged on the flexible circuit board 70, or the first switch 61a can be arranged on the main board 30, and the second switch 61b can be arranged on the flexible circuit board 70, or the first switch 61a can be arranged on the flexible circuit board 70, and the second switch 61b can be arranged on the sub-board 40.

[0117] Considering that the main board 30 and the sub-board 40 are usually hard boards and the flexible circuit board 70 is a soft board, it is preferred to set the first switching switch 61a on the main board 30 and the second switching switch 61b on the sub-board 40, which can facilitate the installation and fixation of the first switching switch 61a and the second switching switch 61b.

[0118] When the number of the conductive wires 52 is at least five, and the number of the first switches 61a is at least two, as shown in FIG. Fig.17 and Fig.18 As shown, each first switch 61a can be an independent switch, or, as shown in FIG. Fig.19 As shown, at least two first switching switches 61 are integrated into an integrated switch chip.

[0119] That is, an exemplary Fig.19 As shown, the number of the conductive wires 52 is five, the number of the first switching switches 61a is two, and the two first switching switches 61a can be integrated into an integrated switch chip; another exemplary embodiment, as shown in FIG. Fig. 20 As shown, the number of the conductive wires 52 is six, the number of the first switching switches 61a is two, and the two first switching switches 61a can be integrated into an integrated switch chip; another exemplary embodiment, as shown in FIG. Fig.21 As shown, the number of the conductive wires 52 is seven, and the number of the first switching switches 61 a is three. The three first switching switches 61 a can be integrated into an integrated switch chip.

[0120] Thus, compared to each first switch 61 a being an independent switch, during assembly, a plurality of first switches 61 a can be installed on the mainboard 30 at the same time, thereby improving the installation efficiency of the first switches 61 a.

[0121] When the number of the conductive wires 52 is at least five, and the number of the second switches 61b is at least two, as shown in FIG. Fig.17 and Fig.18 As shown, each second switch 61b can be an independent switch, or, as shown in FIG. Fig.19 As shown, at least two second switches 61b are integrated into an integrated switch chip.

[0122] That is, an exemplary Fig.19 As shown, the number of the conductive wires 52 is five, the number of the second switching switches 61b is two, and the two second switching switches 61b can be integrated into an integrated switch chip; another exemplary embodiment, as shown in FIG. Fig. 20 As shown, the number of the conductive wires 52 is six, the number of the second switching switches 61b is two, and the two second switching switches 61b can be integrated into an integrated switch chip; another exemplary embodiment, as shown in FIG. Fig.21 As shown, the number of the conductive wires 52 is seven, and the number of the second switching switches 61 b ​​is three. The three second switching switches 61 b ​​can be integrated into an integrated switch chip.

[0123] Thus, compared to each second switch 61 b ​​being an independent switch, during assembly, a plurality of second switches 61 b ​​can be installed on the sub-board 40 at the same time, thereby improving the installation efficiency of the second switches 61 b.

[0124] In some embodiments, Fig. 22 As shown, a normally closed switch 513 is provided on the first connecting line 51. Therefore, when the temperature of the battery 20 is abnormally high during charging, the normally closed switch 513 is disconnected to suspend the charging of the battery 20, thereby preventing the battery 20 from overheating and leaking or even catching fire and exploding, thereby facilitating the use safety of the electronic device 100.

[0125] like Fig. 22 As shown, the normally closed switch 513 includes a first sub-normally closed switch 513a, the first sub-normally closed switch 513a and the first switching switch 61a are located on the same side of the conductive line 52 along the line length direction thereof, and the first sub-normally closed switch 513a and the first switching switch 61a are integrated into an integrated switch chip. The integrated switch chip can be arranged on the flexible circuit board 70 or on the main board 30.

[0126] An exemplary example is Fig. 22As shown, a first sub-normally closed switch 513a and a first switching switch 61a are integrated into an integrated switch chip, and the integrated switch chip is arranged on the main board 30; another exemplary embodiment, as shown Fig.23 As shown, the two first sub-normally closed switches 513 a and the two first switching switches 61 a are integrated into an integrated switch chip, and the integrated switch chip is arranged on the main board 30 .

[0127] In this way, compared with the first sub-normally closed switch 513a and the first switching switch 61a being independent switches, during assembly, the first sub-normally closed switch 513a and the first switching switch 61a can be installed on the main board 30 at the same time, thereby improving installation efficiency.

[0128] In some embodiments, Fig. 22 As shown, the normally closed switch 513 further includes a second normally closed switch 513b, the first normally closed switch 513a and the second normally closed switch 513b are located on different sides of the conductive line 52 along the line length direction thereof, the second normally closed switch 513b and the second switch 61b are located on the same side of the conductive line 52 along the line length direction thereof, and the second normally closed switch 513b and the second switch 61b are integrated into an integrated switch chip. The integrated switch chip can be arranged on the flexible circuit board 70 or on the sub-board 40.

[0129] An exemplary example is Fig. 22 As shown, a second normally closed sub-switch 513b and a second switching switch 61b are integrated into an integrated switch chip, and the integrated switch chip is arranged on the sub-board 40; another exemplary embodiment, as shown Fig.23 As shown, the two second sub-normally closed switches 513 b and the two second switching switches 61 b ​​are integrated into an integrated switch chip, and the integrated switch chip is set on the main board 30 .

[0130] In this way, compared with the second sub-normally closed switch 513b and the second switching switch 61b being independent switches, during assembly, the second sub-normally closed switch 513b and the second switching switch 61b can be installed on the sub-board 40 at the same time, thereby improving the installation efficiency.

[0131] When the charger is inserted into the charging port 41 to charge the battery 20, the magnitude of the current flowing into the conductive circuit through the charging port 41 generally does not change with the change of the ambient temperature, and is generally constant and generally a large current. However, as mentioned above, when the battery 20 is in a low temperature state, the battery 20 can only support small current charging, that is, only a part of the current entering through the charging port 41 flows into the low-temperature battery 20, thereby resulting in an extra current.

[0132] In this regard, when the battery 20 is in a low temperature state and the charging port 41 is connected to current, the switching switch 61 is used to switch the multiple conductive wires 52 between forming a series circuit and a parallel circuit. At least one switching switch 61 is a single-pole double-throw switch, and the single-pole double-throw switch is used for grounding. Then, a large current flows in through the charging port 41, a part of which reaches the battery 20 through the series circuit and the connecting line 31, and the other part of the current is introduced into the ground through the switching switch 61. In this way, the excess current can be introduced into the ground, thereby avoiding leakage of the battery 20 when charging in a low temperature environment, so as to improve the safety of the battery 20 when charging in a low temperature environment.

[0133] In this application, if Fig. 22 and Fig.23 As shown, at least three conductive wires 52 include a first sub-conductive wire 521 and a second sub-conductive wire 522, wherein one end of the first sub-conductive wire 521 is connected to the connection line 31, and the other end of the first sub-conductive wire 521 is connected to the first connection line 51, one end of the second sub-conductive wire 522 is connected to the charging port 41, and the other end of the second sub-conductive wire 522 is connected to the first connection line 51. At least two switches 61 include a first sub-switching switch 611 and a second sub-switching switch 612, the first sub-switching switch 611 is electrically connected between the first sub-conductive wire 521 and the conductive wire 52 adjacent thereto, and the second sub-switching switch 612 is electrically connected between the second sub-conductive wire 522 and the conductive wire 52 adjacent thereto.

[0134] In an exemplary embodiment, when the battery 20 is in a low temperature state and the charging port 41 is connected to current to charge the battery 20, so that the battery 20 is in a charging state, the first sub-switching switch 611 is a single-pole double-throw switch and is used for grounding. Then, the large current flowing in through the charging port 41 flows into the series circuit, and part of the current reaches the battery 20 through the connecting line 31, while the other part of the current is introduced into the ground through the first sub-switching switch 611. In this way, the excess current can be introduced into the ground, thereby avoiding leakage of the battery 20 when charging in a low temperature environment, so as to improve the safety of the battery 20 when charging in a low temperature environment.

[0135] Another exemplary embodiment is that when the battery 20 is in a low temperature state and the charging port 41 is connected to the current to charge the battery 20, so that the battery 20 is in a charging state, the second sub-switching switch 612 is a single-pole double-throw switch and is used for grounding. Then, a large current flows in through the charging port 41, a part of which reaches the battery 20 through the series line and the connecting line 31, and the other part of the current is introduced into the ground through the second sub-switching switch 612. In this way, the excess current can be introduced into the ground, thereby avoiding leakage of the battery 20 when charging in a low temperature environment, so as to improve the safety of the battery 20 when charging in a low temperature environment.

[0136] It can be seen that when the battery 20 is in a low temperature state and the charging port 41 is connected to the current to charge the battery 20, so that the battery 20 is in a charging state, the second sub-switching switch 612 is used for grounding. Since the current is shunted before flowing into the series circuit, the current flowing into the series circuit becomes smaller. The first sub-switching switch 611 is used for grounding. Since the current is shunted after flowing into the series circuit, the current flowing into the series circuit is relatively large, so that the series circuit can generate greater heat, thereby heating the battery 20 faster, allowing the temperature of the battery 20 to rise rapidly, and then further accelerating the speed at which the battery 20 enters a state capable of high current charging, thereby greatly improving the charging speed of the battery 20 and shortening the charging time.

[0137] It is understandable that when the battery 20 is in a normal temperature state or a high temperature state, neither the first sub-switch 611 nor the second sub-switch 612 is used for grounding to avoid current shunting, thereby ensuring the charging speed of the battery 20.

[0138] In an exemplary embodiment, when the battery 20 is in a low temperature state and the OTG function of the electronic device 100 is used to put the battery 20 in a discharge state, the second sub-switch 612 is a single-pole double-throw switch and is used for grounding, and the current output by the battery 20 can flow into the series circuit through the connecting line 31, and finally be introduced into the ground through the second sub-switch 612. In this process, the series circuit is passed with current, which can generate a large amount of heat, thereby heating the battery 20, thereby increasing the temperature of the battery 20 and improving the low-temperature discharge state of the battery 20.

[0139] In another exemplary embodiment, when the battery 20 is in a low temperature state, and the OTG function of the electronic device 100 is used to put the battery 20 in a discharge state, the charging port 41 is used to output current. For example, the charging port 41 is plugged with an external device such as a USB flash disk (short for USB flash disk), a mobile hard disk, etc., and the current output by the battery 20 can flow into the series circuit through the connecting line 31, and finally output to the external device such as the USB flash disk, the mobile hard disk, etc. through the charging port 41. In this process, the series circuit is passed with current, which can generate a large amount of heat to heat the battery 20, so that the temperature of the battery 20 can be increased, and the low-temperature discharge state of the battery 20 can be improved.

[0140] It can be seen that when the battery 20 is in a low temperature state and the OTG function of the electronic device 100 is used to put the battery 20 in a discharging state, compared with the method of using the charging port 41 to plug in external devices such as a USB flash drive and a mobile hard disk, the second sub-switch 612 is used for grounding, and there is no need to carry external devices such as a USB flash drive and a mobile hard disk all the time, so that the discharge method of the battery 20 can be more flexible and convenient.

[0141] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0142] In addition, the above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the content of this specification should not be understood as limiting the present application, and the protection scope of the present application shall be subject to the attached claims.

Claims

1. An electronic device, characterized in that: The electronic device comprises: A casing, wherein the casing is provided with a through hole communicating with the inside and the outside of the casing; A battery, wherein the battery is disposed inside the housing; A mainboard, the mainboard is arranged inside the housing and is electrically connected to the battery; A sub-board, the sub-board is arranged inside the housing, the sub-board is provided with a charging port, and the charging port is arranged at the through hole; A conductive circuit, wherein the conductive circuit includes a series circuit and a parallel circuit; and a switch structure, the switch structure being used to control the series circuit to be connected between the battery and the charging port when the battery is in a low temperature state, so that current flows into the series circuit to increase the temperature of the battery; The switch structure is also used to control the parallel circuit to connect between the battery and the charging port when the battery is at a normal temperature or a high temperature.

2. The electronic device according to claim 1, characterized in that: The switch structure is arranged on the main board and / or the sub-board.

3. The electronic device according to claim 1, characterized in that: The electronic device further comprises a flexible circuit board, and the series circuit and the parallel circuit are both arranged on the flexible circuit board.

4. The electronic device according to claim 3, characterized in that: The switch structure is arranged on the flexible circuit board.

5. The electronic device according to claim 1, characterized in that: The conductive circuit includes at least two first connecting lines and at least three conductive lines, two adjacent conductive lines are connected through the first connecting lines, and two adjacent first connecting lines are respectively located on both sides of the conductive line along the line length direction; The switch structure includes at least two switching switches, the switching switches are electrically connected between two adjacent conductive lines, and the two adjacent switching switches are respectively located on both sides of the conductive line along the line length direction; wherein, When the battery is in a low temperature state, the at least two switches are disconnected so that the at least three conductive wires form the series circuit; When the battery is in a normal temperature state or a high temperature state, the at least two switches are closed so that the at least three conductive wires form the parallel circuit.

6. The electronic device according to claim 5, characterized in that: When the battery is in a low temperature state and the charging port is connected to current, at least one of the switches is a single-pole double-throw switch and is used for grounding.

7. The electronic device according to claim 6, characterized in that: The at least three conductive wires include a first sub-conductive wire, one end of the first sub-conductive wire is connected to the battery, and the other end of the first sub-conductive wire is connected to the first connecting wire, and the at least two switching switches include a first sub-switching switch, and the first sub-switching switch is electrically connected between the first sub-conductive wire and the conductive wire adjacent thereto; When the battery is in a low temperature state and the charging port is connected to current, the first sub-switch is a single-pole double-throw switch and is used for grounding.

8. The electronic device according to claim 6, characterized in that: The at least three conductive wires include a second sub-conductive wire, one end of the second sub-conductive wire is connected to the charging port, and the other end of the second sub-conductive wire is connected to the first connecting wire, and the at least two switching switches include a second sub-switching switch, and the second sub-switching switch is electrically connected between the second sub-conductive wire and the conductive wire adjacent to the second sub-conductive wire; When the battery is in a low temperature state and in a discharging state, the second sub-switch is a single-pole double-throw switch and is used for grounding, or the charging port is used for outputting current.

9. The electronic device according to claim 6, characterized in that: The at least two switching switches include a first switching switch, and the first switching switch is located on one side of the conductive line along the line length direction of the conductive line; When the number of the conductive wires is at least five and the number of the first switching switches is at least two, at least two of the first switching switches are integrated into an integrated switch chip.

10. The electronic device according to claim 9, characterized in that: The at least two switching switches further include a second switching switch, wherein the second switching switch and the first switching switch are respectively located on different sides of the conductive line along the line length direction thereof; When the number of the conductive wires is at least five and the number of the second switches is at least two, at least two of the second switches are integrated into an integrated switch chip.

11. The electronic device according to claim 5, characterized in that: A normally closed switch is arranged on the first connecting line.

12. The electronic device according to claim 11, characterized in that: The switch structure includes at least two switching switches, the switching switches are electrically connected between two adjacent conductive lines, and the two adjacent switching switches are respectively located on both sides of the conductive line along the line length direction; wherein, When the battery is in a low temperature state, the at least two switches are disconnected; When the battery is at a normal temperature or a high temperature, the at least two switches are closed so that the conductive circuits form a parallel circuit; The at least two switching switches include a first switching switch, the normally closed switch includes a first sub-normally closed switch, the first sub-normally closed switch and the first switching switch are located on the same side of the conductive line along its line length direction, and the first sub-normally closed switch and the first switching switch are integrated into an integrated switch chip.

13. The electronic device according to claim 12, characterized in that: The at least two switching switches further include a second switching switch, wherein the second switching switch and the first switching switch are respectively located on different sides of the conductive line along the line length direction thereof; The normally closed switch also includes a second sub-normally closed switch, the second sub-normally closed switch and the second switching switch are located on the same side of the conductive line along its line length direction, and the second sub-normally closed switch and the second switching switch are integrated into an integrated switch chip.

14. The electronic device according to claim 5, characterized in that: When the number of the conductive lines is odd, any two adjacent conductive lines are connected through one first connecting line, and any two adjacent conductive lines are connected through one switching switch; When all the switching switches are disconnected, any two adjacent conductive lines are connected through the first connecting line to form the series circuit; When all the switching switches are closed, all the conductive wires are connected in parallel to form the parallel circuit.

15. The electronic device according to claim 5, characterized in that: When the number of the conductive lines is at least four, the conductive line further includes a second connecting line; When the at least two switching switches are disconnected, at least three of the conductive lines are connected through the first connecting line to form the series circuit, and the remaining conductive lines are connected in parallel in the series circuit through the second connecting line; When all the switching switches are closed, all the conductive wires are connected in parallel to form the parallel circuit.

16. The electronic device according to claim 5, characterized in that: The first connecting line is in the shape of a straight line or a curve.

17. The electronic device according to claim 1, characterized in that: The battery, the main board and the auxiliary board are arranged along the length direction of the electronic device, and the battery is located between the main board and the auxiliary board, and the battery is arranged in contact with the series circuit.

Images