Electronic device

Abstract

The utility model discloses electronic equipment, and belongs to the technical field of electronic equipment. The electronic equipment comprises a battery, a first circuit board and a second circuit board. The first circuit board and the second circuit board are arranged on the two sides of the first battery body respectively, and the length of the first battery body is smaller than that of the second battery body, so that the distance between the first circuit board and the second circuit board in the first direction can be shortened; therefore, the length of the flexible circuit board connecting the first circuit board and the second circuit board is reduced so as to ensure that the internal resistance of the flexible circuit board is small. Thus, in the process that the external power supply charges the battery through the first circuit board, the flexible circuit board and the second circuit board, it can be guaranteed that heat generated on the flexible circuit board is little, then the temperature of the electronic equipment can be reduced, and the reliability of the electronic equipment is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic devices, and in particular to an electronic device. BACKGROUND

[0002] With the rapid development of battery technology, batteries have become an indispensable part of many electronic devices. Batteries can provide reliable energy support for mobile phones, laptops, smart wearable devices and other electronic devices.

[0003] Generally, a battery is composed of a shell, a battery cell, positive and negative poles, a protection plate, etc. The positive and negative poles of the battery are respectively connected to the positive and negative poles of the battery cell. The battery is connected to the mainboard of the electronic device through the protection plate, so as to ensure that the battery can safely charge and power supply.

[0004] However, a large amount of heat is generated during the charging of the battery in the electronic device, which results in a high temperature of the electronic device and affects the reliability of the electronic device. Innovative content

[0005] The embodiment of the present application provides an electronic device. The problem of low reliability of the prior art electronic device can be solved, and the technical scheme is as follows:

[0006] In one aspect, an electronic device is provided, comprising:

[0007] a battery, a first circuit board and a second circuit board;

[0008] The battery comprises a first battery body and a second battery body connected together, and in a first direction, the length of the second battery body is greater than the length of the first battery body.

[0009] In the first direction, the first circuit board is located on one side of the battery, and the second circuit board is located on the side of the first battery body away from the first circuit board.

[0010] The second circuit board is electrically connected to the first battery body and the first circuit board.

[0011] Optionally, the second circuit board has a charging control unit, the charging control unit is located on the side of the second circuit board facing the first battery body, and the charging control unit is electrically connected to the first battery body.

[0012] Optionally, the second circuit board also has a power supply control unit, the power supply control unit is located on the side of the second circuit board facing the second battery body, and the power supply control unit is electrically connected to the second battery body.

[0013] Optionally, the first battery body comprises a first battery cell and a first packaging part for wrapping the first battery cell; and the second battery body comprises a second battery cell and a second packaging part for wrapping the second battery cell.

[0014] The first packaging part is connected with the second packaging part, and the first battery cell is electrically connected with the second battery cell.

[0015] Optionally, the first battery body further comprises a first protection plate and two first poles; the two first poles protrude from a surface of the first packaging part, and are electrically connected with the first battery cell; the two first poles are distributed on a side of the first packaging part away from the first circuit board, and are electrically connected with the first protection plate; and the first protection plate is electrically connected with a side of the second circuit board facing the first battery body.

[0016] Optionally, the second battery body further comprises a second protection plate and two second poles; the two second poles protrude from a surface of the second packaging part, and are electrically connected with the second battery cell; the two second poles are distributed on a side of the second packaging part away from the first circuit board, and are electrically connected with the second protection plate; and the second protection plate is electrically connected with a side of the second circuit board facing the second battery body.

[0017] Optionally, the first packaging part and the second packaging part are integrally formed.

[0018] Optionally, in the first direction, a distance between a side of the first battery body away from the first circuit board and a side of the second battery body away from the first circuit board is greater than or equal to a length of the first battery body in the first direction.

[0019] Optionally, the electronic device has a battery compartment, and the battery and the second circuit board are distributed in the battery compartment.

[0020] Optionally, the first circuit board has a charging interface for connecting with an external power supply to charge the battery.

[0021] The technical scheme provided by the embodiments of the present application has at least the following beneficial effects:

[0022] By arranging the first circuit board and the second circuit board on two sides of the first battery body respectively, and making the length of the first battery body less than the length of the second battery body, the distance of the first circuit board and the second circuit board in the first direction can be shortened, and the length of the flexible circuit board connecting the first circuit board and the second circuit board is reduced, so as to ensure that the internal resistance of the flexible circuit board is small. In this way, in the process of charging the battery by the external power supply through the first circuit board, the flexible circuit board and the second circuit board, the heat generated on the flexible circuit board can be ensured to be small, and the temperature of the electronic device can be reduced, and the reliability of the electronic device can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Figure 1 is a top view of an electronic device;

[0025] Figure 2 is a top view of an electronic device provided by an embodiment of the present application;

[0026] Figure 3 is a system diagram of battery charging and discharging;

[0027] Figure 4 is a schematic diagram of a battery structure provided by an embodiment of the present application;

[0028] Figure 5 is a top view of another electronic device provided by an embodiment of the present application;

[0029] Figure 6 is a system diagram of battery charging and discharging provided by an embodiment of the present application. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present application more clear, the embodiments of the present application will be further described in detail with reference to the drawings.

[0031] Please refer to Figure 1 , Figure 1 is a top view of an electronic device. The electronic device 00 can include a battery 10, a first circuit board 20 and a second circuit board 30.

[0032] The first circuit board 20 in the electronic device 00 can be located on one side of the battery 10.

[0033] The second circuit board 30 in the electronic device 00 is located on the side of the battery 10 away from the first circuit board 20 in the first direction X. The second circuit board 30 can be electrically connected with the battery 10, and the second circuit board 30 can be electrically connected with the first circuit board 20. For example, the second circuit board 30 can be a main board in the electronic device 00, and the first circuit board 20 can be a sub-board in the electronic device 00. The electronic device 00 can further include a flexible circuit board 40. The second circuit board 30 can be electrically connected with the first circuit board 20 through the flexible circuit board 40.

[0034] The electronic device 00 can have a battery compartment C, the battery 10 can be located in the battery compartment C, and the first circuit board 20 and the second circuit board 30 can be distributed on both sides of the battery compartment C in the first direction X.

[0035] Generally, in the process of charging the battery 10 in the electronic device 00, the external power supply connected by the adapter needs to be electrically connected with the first circuit board 20. In this way, the external power supply can charge the battery 10 through the first circuit board 20, the flexible circuit board 40 and the second circuit board 30. Because the flexible circuit board 40 needs to span the entire battery 10, the length of the flexible circuit board 40 is relatively long, and the internal resistance of the flexible circuit board 40 is relatively large. Therefore, in the process of charging the battery 10 by the external power supply through the first circuit board 20, the flexible circuit board 40 and the second circuit board 30, the flexible circuit board 40 generates more heat, and the temperature of the electronic device 00 is relatively high.

[0036] The electronic device provided in the embodiments of the present application can be a mobile phone, a tablet computer, a notebook computer, etc. Please refer to Figure 2 , Figure 2 is a top view of an electronic device provided in the embodiments of the present application. The electronic device 000 can include a battery 100, a first circuit board 200 and a second circuit board 300.

[0037] The battery 100 in the electronic device 000 can include a first battery body 101 and a second battery body 102 connected with each other. In the first direction X, the length d1 of the second battery body 102 is greater than the length d2 of the first battery body 101.

[0038] In the first direction X, the first circuit board 200 in the electronic device 000 is located at one side of the battery 100, and the second circuit board 300 in the electronic device 000 is located at the side of the first battery body 101 away from the first circuit board 200. The second circuit board 300 can be electrically connected with the first battery body 101, and the second circuit board 300 can be electrically connected with the first circuit board 200. For example, the second circuit board 300 can be a main board in the electronic device 000, and the first circuit board 200 can be a sub-board in the electronic device 000. The electronic device 000 can further include a flexible circuit board 400. The second circuit board 300 can be electrically connected with the first circuit board 200 through the flexible circuit board 400.

[0039] In the present application, when the battery 100 needs to be charged, the external power supply connected through the adapter needs to be electrically connected with the first circuit board 200. In this way, the external power supply can charge the battery 100 through the first circuit board 200, the flexible circuit board 400 and the second circuit board 300. Here, since the first battery body 101 in the battery 100 is directly connected with the second circuit board 300, the external power supply can directly charge the first battery body 101 through the first circuit board 200, the flexible circuit board 400 and the second circuit board 300. Since the first battery body 101 is connected with the second battery body 102, the second battery body 102 can also be charged in the process of charging the first battery body 101.

[0040] In the embodiment of the present application, by arranging the first circuit board 200 and the second circuit board 300 at two sides of the first battery body 101 respectively, and making the length d2 of the first battery body 101 less than the length d1 of the second battery body 102, the distance between the first circuit board 200 and the second circuit board 300 in the first direction X can be shortened, and the length of the flexible circuit board 400 connecting the first circuit board 200 and the second circuit board 300 can be reduced to ensure that the internal resistance of the flexible circuit board 400 is small. In this way, in the process of charging the battery 100 by the external power supply through the first circuit board 200, the flexible circuit board 400 and the second circuit board 300, the heat generated on the flexible circuit board 400 can be ensured to be small, and the temperature of the electronic device 000 can be reduced, and the reliability of the electronic device 000 can be improved.

[0041] In summary, the electronic device provided by the embodiment of the present application comprises a battery, a first circuit board and a second circuit board. By arranging the first circuit board and the second circuit board on the two sides of the first battery body respectively, and making the length of the first battery body less than the length of the second battery body, the distance between the first circuit board and the second circuit board in the first direction can be shortened, and then the length of the flexible circuit board connecting the first circuit board and the second circuit board is reduced, so as to ensure that the internal resistance of the flexible circuit board is small. In this way, in the process of charging the battery by the external power supply through the first circuit board, the flexible circuit board and the second circuit board, the heat generated on the flexible circuit board can be ensured to be small, and then the temperature of the electronic device can be reduced, and the reliability of the electronic device can be improved.

[0042] In the embodiment of the present application, the second circuit board 300 in the electronic device 000 can have a charging control unit (not shown), which can be located on the side of the second circuit board 300 facing the first battery body 101, and the charging control unit is electrically connected with the first battery body 101. For example, the charging control unit can be any one or more of a charge pump, a power management IC and a processor (AP). Among them, the charge pump is responsible for large current charging, the power management IC is responsible for small current charging and power supply to other devices of the whole machine, and the processor (AP) is responsible for the normal operation of the whole system, ensuring that all operations are within the safe and efficient range.

[0043] In this case, when the battery 100 needs to be charged, the external power supply can charge the first battery body 101 in the battery 100 through the first circuit board 200, the flexible circuit board 400 and the charging control unit on the second circuit board 300.

[0044] For example, when the battery 100 is charged, the current starts from the external power supply, and then passes through the first circuit board 200, the flexible circuit board 400 and the second circuit board 300 in turn. The charging control unit located on the second circuit board 300 is responsible for managing the charging current, ensuring that the current safely enters the first battery body 101, and completing the charging of the first battery body 101. Since the first battery body 101 is connected with the second battery body 102, during the charging of the first battery body 101, the second battery body 102 is also charged, thereby realizing the complete charging process of the whole battery 100.

[0045] Optionally, the second circuit board 300 in the electronic device 000 can also have a power supply control unit (not shown) on the side of the second circuit board 300 facing the second battery body 102, and the power supply control unit can be electrically connected with the second battery body 102.

[0046] In this case, when the battery 100 needs to supply power to the power-consuming device in the electronic device 000, the second battery body 102 in the battery 100 can supply power to the power-consuming device through the power supply control unit on the second circuit board 300.

[0047] It should be noted that in the related art, please refer to Figure 3 , Figure 3 is a system diagram of battery charging and discharging. Since the battery 10 and the second circuit board 30 are connected only at one place, during the charging process of the electronic device 000, the current provided by the external power source can only charge the battery 10 through this connection. Therefore, if the electronic device 000 needs to be used during the charging process of the electronic device 000, only part of the current provided by the external power source will normally charge the battery 10, and the other part of the current needs to supply power to the power-consuming device in the electronic device 000. This results in a low charging efficiency of the battery 10.

[0048] In the embodiment of the present application, the battery 100 can not only be electrically connected to the charging control unit in the second circuit board 300 through the first battery body 101, but also be electrically connected to the power supply control unit in the second circuit board 300 through the second battery body 102. Therefore, the battery 100 has two connection points with the second circuit board 300. Among them, the second battery body 102 can directly supply power to the power-consuming device through the power supply control unit on the second circuit board 300. In this way, during the charging process of the battery 100, the current flowing from the first circuit board 200 to the second circuit board 300 of the external power source can be used for charging the battery 100, and there is no need to shunt part of the current to meet the power demand of other power-consuming devices, thereby effectively improving the charging efficiency of the battery 100 and ensuring efficient charging even during use of the electronic device 000.

[0049] In the embodiment of the present application, please refer to Figure 4 , Figure 4 is a battery structure schematic diagram provided by the embodiment of the present application. The first battery body 101 in the battery 100 can include a first battery cell (not shown) and a first packaging portion 1011 for wrapping the first battery cell; the second battery body 102 in the battery 100 can include a second battery cell (not shown) and a second packaging portion 1021 for wrapping the second battery cell.

[0050] Among them, the first packaging portion 1011 is connected to the second packaging portion 1021, and the first battery cell is electrically connected to the second battery cell.

[0051] For example, the first electric core can include a first positive electrode sheet, a first negative electrode sheet, and a first insulating separator between the first positive electrode sheet and the first negative electrode sheet; and the second electric core can include a second positive electrode sheet, a second negative electrode sheet, and a second insulating separator between the second positive electrode sheet and the second negative electrode sheet. The first positive electrode sheet is connected to the second positive electrode sheet, and the first negative electrode sheet is connected to the second negative electrode sheet.

[0052] For example, in the first direction X, the length of the second electric core is greater than the length of the first electric core, and the length of the second packaging portion 1021 is greater than the length of the first packaging portion 1011.

[0053] In this case, when the battery 100 is charged, the current flows from the external power source through the first circuit board 200, reaches the second circuit board 300 via the flexible circuit board 400, and then enters the first electric core through the second circuit board 300. Finally, the current flows through the first electric core, the second circuit board 300, the flexible circuit board 400, the first circuit board 200, and returns to the external power source, completing the charging process; when the battery 100 is discharged, the current can directly supply power to the electronic device 000 through the charging control unit on the second circuit board 300.

[0054] Optionally, as shown in Figure 4 The first battery body 101 in the battery 100 can further include a first protection plate 1012 and two first poles 1013. The two first poles 1013 protrude from the surface of the first packaging portion 1011 and are both electrically connected to the first electric core. The two first poles 1013 are both distributed on the side of the first packaging portion 1011 away from the first circuit board 200 and are both electrically connected to the first protection plate 1012. The first protection plate 1012 can be electrically connected to the side of the second circuit board 300 facing the first battery body 101. It should be noted that the first protection plate 1012 can serve as a charging protection plate.

[0055] In this case, when the battery 100 is charged, the current flows from the external power source through the first circuit board 200, reaches the second circuit board 300 via the flexible circuit board 400, and then passes through the second circuit board 300 to the first protection plate 1012. The current enters the first electric core through the first protection plate 1012 and the two first poles 1013. Finally, the current flows through the first electric core, the flexible circuit board 400, the first circuit board 200, and returns to the external power source, completing the charging process. Moreover, the two first poles 1013 are both electrically connected to the first electric core and the first protection plate 1012, which can ensure that the current can smoothly enter and flow out of the first electric core.

[0056] Here, the first protection plate 1012 can serve as a battery protection plate, by monitoring and regulating the working state of the first battery cell in real time, to ensure that the first battery cell works within a reasonable voltage and current range, prevent potential risks such as overcharging, over-discharging, and overheating, and thus ensure the safety of the battery 100.

[0057] In the embodiments of the present application, as shown in Figure 4 The second battery body 102 in the battery 100 can further include a second protection plate 1022 and two second poles 1023. The two second poles 1023 protrude from the surface of the second packaging portion 1021 and are both electrically connected to the second battery cell. The two second poles 1023 are both distributed on the side of the second packaging portion 1021 facing away from the first circuit board 200 and are both electrically connected to the second protection plate 1022. The second protection plate 1022 can be electrically connected to the side of the second circuit board 300 facing the second battery body 102. It should be noted that the second protection plate 1022 can serve as a discharge protection plate.

[0058] In this case, when the battery 100 is discharging, the current can pass through the two second poles 1023 in sequence from the second battery cell, then pass through the second protection plate 1022, and then pass through the power supply control unit on the second circuit board 300 to supply power to the electronic device 000. Moreover, the two second poles 1023 are both electrically connected to the first battery cell and the second protection plate 1022, which can ensure that the current can smoothly enter and flow out of the second battery cell.

[0059] Here, the second protection plate 1022 can serve as a battery protection plate, by monitoring and regulating the working state of the second battery cell in real time, to ensure that the second battery cell works within a reasonable voltage and current range, prevent potential risks such as overcharging, over-discharging, and overheating, and thus ensure the safety of the battery 100.

[0060] For example, the first packaging portion 1011 in the first battery body 101 and the second packaging portion 1021 in the second battery body 102 can be an integrally formed structure.

[0061] For example, the first packaging portion 1011 and the second packaging portion 1021 can be made of a metal material into a shell-shaped structure, and the first packaging portion 1011 and the second packaging portion 1021 can be integrally formed by injection molding or compression bonding and the like.

[0062] In this case, through the integrally formed design of the first packaging portion 1011 and the second packaging portion 1021, not only can the mechanical strength between the first battery body 101 and the second battery body 102 be enhanced, reducing the risk of failure due to loose or broken connection parts, but also better prevents external substances such as moisture and dust from entering the inside of the battery 100, improves the sealing performance of the battery 100, and prolongs the service life of the battery 100.

[0063] In the embodiments of the present application, please refer to Figure 5 , Figure 5 is another top view of an electronic device provided by the embodiments of the present application. In the first direction X, the distance d3 between the side of the first battery body 101 of the battery 100 facing away from the first circuit board 200 and the side of the second battery body 102 of the battery 100 facing away from the first circuit board 200 is greater than or equal to the length of the first battery body 101 in the first direction X.

[0064] In this case, the second circuit board 300 can be placed on the side of the first battery body 101 facing away from the first circuit board 200 without occupying additional space, so that the space in the electronic device 000 can be effectively utilized, and the space utilization of the electronic device 000 is improved.

[0065] Optionally, as shown in Figure 5 , the electronic device 000 can have a battery compartment C, and the battery 100 and the second circuit board 300 in the electronic device 000 are both distributed in the battery compartment C.

[0066] In the prior art, only the battery 100 is located in the battery compartment C, and the first circuit board 200 and the second circuit board 300 can be distributed on both sides of the battery compartment C in the first direction X.

[0067] In the present application, by placing the battery 100 and the second circuit board 300 in the battery compartment C, the side of the battery compartment C facing away from the first circuit board 200 does not need to reserve space for the second circuit board 300, so that the size of the battery compartment C in the first direction X can be expanded, and thus the size of the second battery body 102 in the first direction X can be ensured to be large, so as to ensure that the capacity of the battery 100 will not be reduced.

[0068] In the embodiments of the present application, please refer to Figure 6 , Figure 6 is a system diagram of battery charging and discharging provided by the embodiments of the present application. The first circuit board 200 in the electronic device 000 can have a charging interface (not shown), which can be used to connect with an adapter 001 to charge the battery 100. For example, the charging interface can be a Type-C interface or a USB interface.

[0069] In summary, the electronic device provided by the embodiment of the present application comprises a battery, a first circuit board and a second circuit board. By arranging the first circuit board and the second circuit board on two sides of the first battery body respectively, and making the length of the first battery body less than the length of the second battery body, the distance of the first circuit board and the second circuit board in the first direction can be shortened, and then the length of the flexible circuit board connecting the first circuit board and the second circuit board is reduced, so as to ensure that the internal resistance of the flexible circuit board is small. In this way, in the process of charging the battery by the external power supply through the first circuit board, the flexible circuit board and the second circuit board, the heat generated on the flexible circuit board can be ensured to be small, and then the temperature of the electronic device can be reduced, and the reliability of the electronic device can be improved.

[0070] In the present application, the terms "first" and "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance. The term "a plurality of" refers to two or more, unless otherwise explicitly limited.

[0071] The above only describes the optional embodiments of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An electronic device, characterized in that, include: Battery (100), first circuit board (200), and second circuit board (300); The battery (100) includes a first battery body (101) and a second battery body (102) connected to each other. In a first direction (X), the length of the second battery body (102) is greater than the length of the first battery body (101). In the first direction (X), the first circuit board (200) is located on one side of the battery (100), and the second circuit board (300) is located on the side of the first battery body (101) opposite to the first circuit board (200); The second circuit board (300) is electrically connected to the first battery body (101) and to the first circuit board (200).

2. The electronic device according to claim 1, characterized in that, The second circuit board (300) has a charging control unit located on the side of the second circuit board (300) facing the first battery body (101), and the charging control unit is electrically connected to the first battery body (101).

3. The electronic device according to claim 2, characterized in that, The second circuit board (300) also has a power supply control unit, which is located on the side of the second circuit board (300) facing the second battery body (102) and is electrically connected to the second battery body (102).

4. The electronic device according to any one of claims 1 to 3, characterized in that, The first battery body (101) includes: a first battery cell and a first encapsulation part (1011) for encapsulating the first battery cell; the second battery body (102) includes: a second battery cell and a second encapsulation part (1021) for encapsulating the second battery cell; The first packaging part (1011) is connected to the second packaging part (1021), and the first battery cell is electrically connected to the second battery cell.

5. The electronic device according to claim 4, characterized in that, The first battery body (101) further includes: a first protection plate (1012) and two first terminals (1013); the two first terminals (1013) protrude from the surface of the first encapsulation part (1011) and are both electrically connected to the first battery cell; the two first terminals (1013) are distributed on the side of the first encapsulation part (1011) away from the first circuit board (200) and are both electrically connected to the first protection plate (1012); the first protection plate (1012) is electrically connected to the side of the second circuit board (300) facing the first battery body (101).

6. The electronic device according to claim 5, characterized in that, The second battery body (102) further includes: a second protection plate (1022) and two second terminals (1023); the two second terminals (1023) protrude from the surface of the second encapsulation part (1021) and are both electrically connected to the second battery cell; the two second terminals (1023) are distributed on the side of the second encapsulation part (1021) away from the first circuit board (200) and are both electrically connected to the second protection plate (1022); the second protection plate (1022) is electrically connected to the side of the second circuit board (300) facing the second battery body (102).

7. The electronic device according to claim 4, characterized in that, The first packaging part (1011) and the second packaging part (1021) are integrally formed structures.

8. The electronic device according to any one of claims 1 to 3, 5 to 7, characterized in that, In the first direction (X), the distance between the side of the first battery body (101) away from the first circuit board (200) and the side of the second battery body (102) away from the first circuit board (200) is greater than or equal to the length of the first battery body (101) in the first direction (X).

9. The electronic device according to claim 8, characterized in that, The electronic device has a battery compartment (C), in which the battery (100) and the second circuit board (300) are both located.

10. The electronic device according to any one of claims 1 to 3, 5 to 7, characterized in that, The first circuit board (200) has a charging interface (201) for connecting to an external power source to charge the battery (100).

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