Charging device and electronic equipment

Abstract

The embodiment of the invention provides a charging device and electronic equipment, and relates to but is not limited to the technical field of electronics. The charging device comprises a small board, a battery and a main board. The small board and the mainboard are located on the two opposite sides of the battery, an interface is formed in the side, away from the battery, of the small board, and the battery and the mainboard are electrically connected with the small board. Wherein the small board is provided with a first charging circuit, and the first charging circuit is used for receiving a first electric signal through the interface and supplying power to the battery and the mainboard through the first electric signal. Therefore, the first charging circuit is close to the interface, the charging path of the battery can be shortened, the heat at the first charging chip is reduced, and the charging speed is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of electronic technology, and in particular to a charging device and an electronic device. Background Art

[0002] An electronic device may include a small board, a battery and a main board. The small board and the main board are located on opposite sides of the battery, and an interface is provided on the side of the small board away from the battery. Usually, a system on chip (SOC) and a charging chip are provided on the main board. The charging chip receives an electrical signal through the interface and charges the battery through the electrical signal. Currently, when a user charges an electronic device while using the electronic device, the charging speed of the electronic device is slow. Summary of the invention

[0003] The embodiments of the present application provide a charging device and an electronic device, which solve the problem of slow charging speed of electronic devices in the prior art.

[0004] In order to achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0005] In a first aspect, a charging device is provided, which includes a small board, a battery, and a main board. The small board and the main board are located on two opposite sides of the battery, and an interface is provided on the side of the small board away from the battery, and the battery and the main board are both electrically connected to the small board. A first charging circuit is provided on the small board, and the first charging circuit is used to receive a first electrical signal through the interface, and power the battery and the main board through the first electrical signal.

[0006] In the above technical solution, the small board and the main board are located on two sides of the battery that are relatively arranged, and the first charging circuit for charging the battery is arranged on the small board. Since the interface is arranged on the side of the small board away from the battery, the distance between the small board and the interface is closer than the distance between the main board and the interface. Therefore, when the user charges the charging device while using the charging device, the charging path of the battery becomes shorter, and the path for the first charging circuit to power the main board does not become longer. In this way, on the one hand, the charging path of the battery can be shortened, the impedance of the charging path of the battery can be reduced, and the thermal power consumption of the first charging chip where the first charging circuit for charging the battery is located can be reduced, thereby reducing the heat at the first charging chip, alleviating the problem of thermal current limiting of the first charging chip, and improving the charging speed. On the other hand, the two heat sources of the first charging chip and the main board can be dispersed, reducing the heat at the first charging chip, alleviating the problem of thermal current limiting of the first charging chip, and improving the charging speed.

[0007] In a possible implementation of the first aspect, the charging device further includes a flexible circuit board, a first connector, and a second connector, wherein the flexible circuit board is electrically connected to the small board through the first connector and is electrically connected to the main board through the second connector. In the above possible implementation, a flexible circuit board is arranged between the small board and the main board, so that the main board and the small board are electrically connected, providing a basis for the first charging circuit to supply power to the main board when the battery is charged.

[0008] In a possible implementation of the first aspect, the first charging circuit is specifically used to transmit the first electrical signal to the mainboard through the flexible circuit board. In the above possible implementation, the mainboard and the small board are connected through the flexible circuit board, and the first electrical signal is transmitted to the mainboard, providing a basis for the first charging circuit to power the mainboard when the battery is charged.

[0009] In a possible implementation of the first aspect, a second charging circuit is provided on the mainboard, and the second charging circuit is used to receive the first electrical signal through the interface and power the mainboard through the first electrical signal. In the above possible implementation, the second charging circuit is provided on the mainboard, and the first electrical signal is received by the second charging circuit to power the mainboard, without the need to power the mainboard through the first charging circuit, thereby further reducing the power consumption of the first charging circuit, and the length of the power supply path of the mainboard is not increased, and the power supply path of the mainboard is not affected.

[0010] In a possible implementation of the first aspect, the charging device further includes a third connector and a protection board electrically connected to the battery, and the protection board is electrically connected to the small board through the third connector. In the above possible implementation, the protection board electrically connected to the battery is electrically connected to the small board through the third connector, so that the battery is electrically connected to the small board, providing a basis for the first charging circuit to charge the battery.

[0011] In a possible implementation of the first aspect, the first charging circuit is specifically used to transmit the first electrical signal to the battery through the protection board. In the above possible implementation, the first charging circuit is specifically used to transmit the first electrical signal to the battery through the protection board, providing a basis for the first charging circuit to charge the battery.

[0012] In a possible implementation of the first aspect, the protection board is used to transmit the second electrical signal output by the battery to the main board through the small board and the flexible circuit board when the battery is discharged. In the above possible implementation, when the battery 231 is not directly electrically connected to the main board 240, the battery 231 can transmit the second electrical signal output by the battery 231 to the main board 240 through the flexible circuit board 250, thereby supplying power to the main board 240. In this way, the charging speed can be improved without affecting the power supply of the battery 231 to the main board 240.

[0013] In a possible implementation of the first aspect, the charging device further includes a fourth connector, and the protection board is electrically connected to the main board through the fourth connector. In the above possible implementation, the protection board 232 is directly electrically connected to the main board 240 through the fourth connector 264, without being indirectly electrically connected to the main board 240 through the small board 220 or the flexible circuit board 250, and the path for the battery 231 to supply power to the main board 240 is shorter, and the power supply is more convenient.

[0014] In a possible implementation of the first aspect, the protection board is used to transmit the second electrical signal output by the battery to the mainboard through the fourth connector when the battery is discharged. In the above possible implementation, when the battery 231 is discharged, the battery 231 can transmit the second electrical signal to the mainboard 240 through the protection board to supply power to the mainboard 240, and the path for the battery 231 to supply power to the mainboard 240 is not lengthened.

[0015] In a possible implementation of the first aspect, the protection board is arranged on a side of the battery away from the main board and the small board. In the above possible implementation, the protection board 232 is arranged on a side of the battery 231 away from the main board 240 and the small board 220. On the one hand, it is convenient to electrically connect the protection board 232 with the small board 220, the path for electrically connecting the protection board 232 with the small board 220 is shorter, and the path for the first charging circuit to charge the battery is shorter. On the other hand, it is convenient to electrically connect the protection board 232 with the main board 240, the path for electrically connecting the protection board 232 with the main board 240 is shorter, and the path for the battery 232 to power the main board 240 is shorter.

[0016] In a possible implementation of the first aspect, the protection board is disposed on a side of the battery close to the small board. In the above possible implementation, the protection board 232 is disposed on a side of the battery 231 close to the small board 220, which facilitates the electrical connection between the protection board 232 and the small board 220, and the path for the electrical connection between the protection board 232 and the small board 220 is shorter, and the path for the first charging circuit to charge the battery is shorter.

[0017] In a possible implementation of the first aspect, the protection board is disposed on a side of the battery close to the main board. In the above possible implementation, the protection board 232 is disposed on a side of the battery 231 close to the main board 240, and the orientation of the battery compartment for placing the battery 231 and the protection board 232 is not changed. The protection board is only added between the protection board 232 and the small board 220, and the charging path of the battery can be shortened with minor changes to the circuit.

[0018] In a possible implementation of the first aspect, the charging device further includes a second connector, a third connector, a flexible circuit board, and a protection board electrically connected to the battery. The flexible circuit board is electrically connected to the main board via the second connector, the flexible circuit board is electrically connected to the protection board, the protection board is disposed on the side of the battery close to the small board, and the protection board is electrically connected to the small board via the third connector. In the above possible implementations, if the protection board is disposed on the side of the battery close to the small board, the flexible circuit board can also be directly electrically connected to the protection board, the battery can power the main board through the protection board, and when the battery is discharged, the main board power supply path does not need to pass through the small board, and the power supply path is shorter.

[0019] In a possible implementation of the first aspect, the first charging circuit is specifically used to transmit the first electrical signal to the mainboard through the protection board and the flexible circuit board. In the above possible implementation, if the protection board is arranged on the side of the battery close to the small board, the flexible circuit board is electrically connected to the mainboard through the second connector, and the flexible circuit board is electrically connected to the protection board, when the battery is charged, the first charging circuit can also transmit the first electrical signal to the mainboard through the protection board and the flexible circuit board. In this way, the charging speed can be improved without affecting the power supply of the battery to the mainboard.

[0020] In a possible implementation of the first aspect, the protection board is used to transmit the second electrical signal output by the battery to the main board through the flexible circuit board when the battery is discharged. In the above possible implementation, if the protection board is arranged on the side of the battery close to the small board, the flexible circuit board is electrically connected to the main board through the second connector, and the flexible circuit board is electrically connected to the protection board, when the battery is discharged, the second electrical signal is transmitted to the main board through the protection board and the flexible circuit board. In this way, the charging speed can be improved without affecting the power supply of the battery to the main board.

[0021] In a possible implementation of the first aspect, in the arrangement direction of the small board, the battery and the main board, the projections of the small board and the main board do not overlap. In the above possible implementation, in the arrangement direction of the small board, the battery and the main board, the projections of the small board and the main board do not overlap, that is, the small board and the main board are placed horizontally and separated, rather than stacked vertically, and the distance between the small board and the main board is far. Thereby dispersing the heat source, reducing the heat at the first charging chip, alleviating the problem of thermal current limiting of the first charging chip, and improving the charging speed.

[0022] In a second aspect, an electronic device is provided, the electronic device comprising a housing and a charging device as provided in the first aspect or any possible implementation of the first aspect, the charging device being arranged on the housing. The beneficial effects that can be achieved can refer to the beneficial effects of the charging device provided above, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1A schematic diagram of the external structure of a charging device provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the internal structure of a charging device provided in an embodiment of the present application Figure 1 ;

[0025] Figure 3 A schematic diagram of the internal structure of a charging device provided in an embodiment of the present application Figure 2 ;

[0026] Figure 4 A schematic diagram of the internal structure of a charging device provided in an embodiment of the present application Figure 3 ;

[0027] Figure 5 A schematic diagram of the internal structure of a charging device provided in an embodiment of the present application Figure 4 ;

[0028] Figure 6 A schematic diagram of the internal structure of a charging device provided in an embodiment of the present application Figure 5 ;

[0029] Figure 7 A schematic diagram of the internal structure of a charging device provided in an embodiment of the present application Figure 6 ;

[0030] Figure 8 A schematic diagram of the internal structure of a charging device provided in an embodiment of the present application Figure 7 ;

[0031] Fig. 9 A schematic diagram of the internal structure of a charging device provided in an embodiment of the present application Figure 8 ;

[0032] Fig.10 A schematic diagram of the internal structure of a charging device provided in an embodiment of the present application Figure 9 ;

[0033] Fig.11 A schematic diagram of the internal structure of a charging device provided in an embodiment of the present application Figure 10 ;

[0034] Fig.12 A schematic diagram of the internal structure of a charging device provided in an embodiment of the present application Figure 10 one;

[0035] Fig.13 A schematic diagram of the internal structure of a charging device provided in an embodiment of the present application Figure 10 two;

[0036] Fig.14 A schematic diagram of the internal structure of a charging device provided in an embodiment of the present application Figure 10 three;

[0037] Fig.15 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0038] In the present application, "at least one" means one or more, and "more" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can represent: a, b, c, ab, ac, bc or abc, where a, b and c can be single or multiple. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. In addition, in the embodiments of the present application, the words "first", "second" and the like do not limit the quantity and execution order.

[0039] In this application, the words "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of the words "exemplary" or "for example" is intended to present the related concepts in a concrete way.

[0040] Before explaining the charging device provided in the embodiment of the present application in detail, the application scenarios and related technologies of the embodiment of the present application are first introduced. The technical solution of the embodiment of the present application can be applied to electronic devices such as mobile phones, tablet computers, computers, laptops, cameras, cameras, wearable devices, vehicle-mounted devices or terminal devices.

[0041] Taking the electronic device as a mobile phone as an example, Figure 1 The external structure of the electronic device is described below. The electronic device 100 may include a housing 101, an interface 110, and a display screen (not shown in the figure). The housing 101 and the display screen of the electronic device 100 may cover the internal electronic components of the electronic device 100.

[0042] Next, combine Figures 2 to 4 The internal structure of the electronic device is described below with an example. Figure 2As shown, the electronic device 100 may include components such as a small board 120 , a battery 131 , a protection board 132 , a main board 140 , a flexible printed circuit 150 (flexible printed circuit, FPC), a connector 161 , a connector 162 , and a connector 163 .

[0043] The mainboard 140 is also called a main board, a system board or a motherboard. The mainboard 140 refers to the main circuit board for connecting various electronic devices inside the electronic device 100. The mainboard 140 may be provided with a variety of slots, such as a processor slot, a memory slot, an expansion slot, etc., and may also be provided with other electronic devices.

[0044] The subboard 120 is an auxiliary circuit board of the main board 140. Electronic components such as a radio frequency antenna may be disposed on the subboard 120. Compared with the main board 140, the subboard 120 has a relatively simple function and a relatively small size.

[0045] The battery 131 can be used to power various electronic devices and slots provided on the main board 140 and the small board 120. The protection board 132 is an intelligent circuit board for monitoring the status of the battery 131 and controlling its operation. During the use of the battery 131, it may be affected by factors such as overcharge, overdischarge, short circuit, etc., resulting in damage to the battery 131. The protection board 132 can prevent the battery 131 from being damaged.

[0046] The flexible circuit board 150 is a flexible circuit board. The flexible circuit board 150 has the characteristics of being able to be bent and folded freely. By embedding the circuit design on the bendable thin plastic sheet, a large number of precision components can be stacked in a narrow and limited space, thereby forming a bendable flexible circuit. The connectors 161 to 163 can be board-to-board connectors (board-to-board, BTB). The flexible circuit board 150 and the connectors 161 to 163 can be used to transmit electrical signals.

[0047] Exemplarily, the connection relationship of the above components can be: the small board 120 and the main board 140 can be located on two sides of the battery 131, the battery 131 is electrically connected to the protection board 132, and the protection board 132 is electrically connected to the small board 120 through the connector 161. The small board 120 is provided with an interface 110 on the side away from the battery. Among them, the interface 110 can be provided on the small board 120, or the interface 110 can be electrically connected to the small board 120. The flexible circuit board 150 is electrically connected to the small board 120 through the connector 162 and to the main board 140 through the connector 163.

[0048] In the related art, a charging chip is provided on the mainboard 140. The charging chip can be electrically connected to the flexible circuit board 150 through the wiring on the mainboard 140 and the connector 163. The charging chip can also be electrically connected to the battery 131 through the wiring on the mainboard 140, the connector 161 and the protection board 132.

[0049] by Figure 2 C1 in the figure is the charging chip as an example to illustrate the battery charging process. When the battery 131 of the electronic device 100 is charged, the electrical signal E01 is input by the interface 110 and reaches the charging chip C1 through the flexible circuit board 150 and the main board 140. The charging chip C1 receives the electrical signal E01, performs a step-up or step-down conversion on the electrical signal E01, and outputs the electrical signal E02. The electrical signal E02 reaches the protection board 132 through the main board 140. The electrical signal E02 can enter the battery 131 through the protection board 132 for storage, thereby achieving the purpose of charging and storing energy for the battery 131. In addition, a load is provided on the main board (such as a variety of electronic devices on the main board), and the charging chip C1 outputs an electrical signal E03 to power the load on the main board 140.

[0050] Figure 3 The internal structure of the electronic device 100 is shown Figure 2 The internal structure of the electronic device 100 shown differs in that: Figure 2 In the embodiment, the flexible circuit board 150 is electrically connected to the small board 120 through the connector 162. Figure 3 In the embodiment, the flexible printed circuit board 150 is electrically connected to the interface 110 .

[0051] Figure 4 The internal structure of the electronic device 100 is shown Figure 3 The internal structure of the electronic device 100 shown differs in that: Figure 3 In the embodiment, the number of connectors 161 is 1. Figure 4 In the embodiment, the number of connectors 161 is at least 2, and the battery 131 can receive electrical signals from at least 2 paths, thereby achieving effects such as reducing impedance.

[0052] exist Figures 2 to 4 In the illustrated solution, when the user is charging the electronic device 100 while using the electronic device 100, on the one hand, the charging path of the battery 131 is long, the impedance is large, and the heat power consumption of the charging chip is large. On the other hand, the motherboard 140 will heat up when the electronic device 100 is in use, and the charging chip will heat up when charging, and the motherboard 140 and the charging chip will heat up in a concentrated manner. As a result, the heat at the charging chip is too high, resulting in thermal current limiting of the charging chip and a slow charging speed.

[0053] Based on this, in order to improve the problem of slow charging speed of electronic devices, an embodiment of the present application provides a charging device, which sets the first charging circuit for charging the battery originally located on the main board on a small board. Since the distance between the small board and the interface is closer than the distance between the main board and the interface, the charging path of the battery becomes shorter, the impedance is reduced, and the thermal power consumption of the charging circuit is reduced, thereby improving the charging speed of the charging device.

[0054] Please refer to Figure 5 The charging device 200 includes: an interface 210, a small board 220, a battery 231 and a main board 240. The small board 220 and the main board 240 are located on two opposite sides of the battery 231. The interface 210 is arranged on a side of the small board 220 away from the battery 231. The battery 231 and the main board 240 are both electrically connected to the small board 220. A first charging circuit is arranged on the small board 220. The first charging circuit is used to receive a first electrical signal through the interface 210, and the battery 231 and the main board 240 are powered by the first electrical signal.

[0055] The small board 220 may include a printed circuit board (PCB) and electronic devices arranged on the PCB. The PCB is used to provide an electrical connection relationship for the electronic devices so that electrical signals can be transmitted between multiple electronic devices arranged on one PCB. The electronic devices arranged on the small board 220 may include a microphone, a speaker, a radio frequency antenna, etc., and these electronic devices can be electrically connected through the wiring on the small board 220.

[0056] Furthermore, the mainboard 240 may include a PCB and electronic devices arranged on the PCB. A system on chip (SOC) may be arranged on the mainboard 240. The system on chip may include a central processing unit (CPU), a graphics processing unit (GPU) or other processors, and the system on chip may also include an interface for communicating with the processor, such as a data interface for transmitting data. The system on chip may be provided with other devices according to the requirements of the charging device 200, and the embodiments of the present application are not limited here.

[0057] Furthermore, the interface 210 may be an interface that only supports charging the charging device, or the interface 210 may be an interface that supports both data transmission and charging the charging device.

[0058] Exemplarily, the side of the small board 220 away from the battery 231 may be any side of the other three sides of the small board 220 except the side close to the battery 231. Figure 5As shown, the upper side of the small board 220 is close to the battery 231, and the side of the small board 220 away from the battery 231 can be any side of the left side, right side, and bottom side except the upper side of the small board 220. The side of the small board 220 away from the battery 231 can also be: the other side of the small board 220 that is arranged opposite to the side close to the battery 231. For example, Figure 5 As shown, the upper side of the small board 220 is close to the battery 231 , and the side of the small board 220 away from the battery 231 may be a lower side disposed opposite to the upper side of the small board 220 .

[0059] Exemplarily, the interface 210 may be disposed on the small board 220, or the interface 210 may be electrically connected to the small board 220. The first charging circuit may be electrically connected to the interface 210 via a wiring on the small board 220.

[0060] In the technical solution provided in the embodiment of the present application, the small board 220 and the main board 240 are located on two sides of the battery 231 that are arranged opposite to each other, and the first charging circuit for charging the battery 231 is arranged on the small board 220. Since the interface is arranged on the side of the small board 220 away from the battery 231, the distance between the small board 220 and the interface is closer than the distance between the main board 240 and the interface. Therefore, when the user charges the charging device while using the charging device, the charging path of the battery 231 becomes shorter, and the path for the first charging circuit to power the main board 240 does not become longer. In this way, on the one hand, the charging path of the battery 231 can be shortened, the impedance of the charging path of the battery 231 can be reduced, and the thermal power consumption of the first charging chip where the first charging circuit for charging the battery 231 is located can be reduced, thereby reducing the heat at the first charging chip, alleviating the problem of thermal current limiting of the first charging chip, and improving the charging speed. On the other hand, the two heat sources of the first charging chip and the main board 240 can be dispersed, reducing the heat at the first charging chip, alleviating the problem of thermal current limiting of the first charging chip, and improving the charging speed.

[0061] Next, combine Figure 6 The electrical connection between the small board 220 and the main board 240 is introduced. In a possible implementation, the charging device 200 further includes a flexible circuit board 250, a first connector 261 and a second connector 262, and the flexible circuit board 250 is electrically connected to the small board 220 through the first connector 261 and is electrically connected to the main board 240 through the second connector 262.

[0062] The first connector 261 and the second connector 262 may be BTB connectors or other connectors. The first connector 261 and the second connector 262 may be used to transmit electrical signals. The first charging circuit is electrically connected to the flexible circuit board 250 through the wiring and the connector 261 on the small board 220, and the main board 240 is electrically connected to the flexible circuit board 250 through the second connector 262.

[0063] In the charging device 200 provided in the embodiment of the present application, a flexible circuit board 250 is arranged between the small board 220 and the main board 240, so that the main board 240 is electrically connected to the small board 220, providing a basis for the first charging circuit to power the main board 240 when the battery 231 is charged.

[0064] In a possible implementation, the first charging circuit is specifically used to transmit the first electrical signal to the mainboard 240 through the flexible circuit board 250. In the charging device 200 provided in the embodiment of the present application, the mainboard 240 and the small board 220 are connected through the flexible circuit board 250, and the first electrical signal is transmitted to the mainboard 240, providing a basis for the first charging circuit to power the mainboard 240 when the battery 231 is charged.

[0065] In the above embodiment, the first charging chip charges the battery 231 and supplies power to the mainboard 240 at the same time, which may cause the first charging chip to consume too much power. In another possible implementation, a second charging chip may be provided to alleviate the problem of excessive power consumption of the first charging chip. This implementation includes: a second charging circuit is provided on the mainboard 240, and the second charging circuit is used to receive the first electrical signal through the interface 210 and supply power to the mainboard 240 through the first electrical signal.

[0066] The second charging circuit may be disposed in a second charging chip, and the second charging chip is disposed on the main board 240. The first electrical signal input from the interface 210 may reach the second charging circuit through the small board 220 and the flexible circuit board 250.

[0067] In the charging device 200 provided in the embodiment of the present application, a second charging circuit is provided on the mainboard 240, and the first electrical signal is received by the second charging circuit to power the mainboard, without the need to power the mainboard through the first charging circuit, thereby further reducing the power consumption of the first charging circuit, and the length of the power supply path of the mainboard 240 is not increased, which will not affect the power supply path of the mainboard 240.

[0068] Next, combine Figure 7 , Figure 8 and Fig. 9 The electrical connection between the small board 220 and the battery 231 is introduced. In a possible implementation, the charging device 200 further includes a third connector 263 and a protection board 232 electrically connected to the battery 231, and the protection board 232 is electrically connected to the small board 220 through the third connector 263. The number of the third connector 263 can be one or more.

[0069] Exemplarily, the protection board 232 is electrically connected to the small board 220 through the third connector 263, which may mean: a flexible circuit board 251 is provided on the protection board 232, the protection board 232 is electrically connected to the third connector 263 through the flexible circuit board 251, and the small board 220 is electrically connected to the third connector 263, so that the protection board 232 is electrically connected to the small board 220 through the flexible circuit board 251 and the third connector 263.

[0070] Exemplarily, the protection board 232 is electrically connected to the small board 220 through the third connector 263, which can also mean: a flexible circuit board 251 is provided on the small board 220, the small board 220 is electrically connected to the third connector 263 through the flexible circuit board 251, and the protection board 232 is electrically connected to the third connector 263, so that the protection board 232 is electrically connected to the small board 220 through the third connector 263 and the flexible circuit board 251.

[0071] Optionally, the protection board 232 is electrically connected to the first charging circuit through the third connector 263 and the wiring on the small board 220. In the charging device 200 provided in the embodiment of the present application, the protection board 232 electrically connected to the battery 231 is electrically connected to the small board 220 through the third connector 263, so that the battery 231 is electrically connected to the small board 220, providing a basis for the first charging circuit to charge the battery 231.

[0072] In a possible implementation, the first charging circuit is specifically used to transmit the first electrical signal to the battery through the protection board 232. In the charging device 200 provided in the embodiment of the present application, the first charging circuit is specifically used to transmit the first electrical signal to the battery through the protection board 232, providing a basis for the first charging circuit to charge the battery 231.

[0073] In a possible implementation, the protection board 232 is used to transmit the second electrical signal output by the battery 231 to the main board 240 through the small board 220 and the flexible circuit board 250 when the battery 231 is discharged.

[0074] In the charging device 200 provided in the embodiment of the present application, when the battery 231 is not directly electrically connected to the mainboard 240, the battery 231 can transmit the second electrical signal output by the battery 231 to the mainboard 240 through the flexible circuit board 250, thereby supplying power to the mainboard 240. In this way, the charging speed can be increased without affecting the power supply of the battery 231 to the mainboard 240.

[0075] Next, combine Fig.10 , Fig.11 , Fig.12 and Fig.13 The electrical connection method between the battery 231 and the main board 240 is introduced.

[0076] In a possible implementation, the charging device 200 further includes a fourth connector 264, and the protection board 232 is electrically connected to the main board 240 via the fourth connector 264. The number of the fourth connector 264 may be one or more.

[0077] Exemplarily, the protection board 232 is electrically connected to the main board 240 via the fourth connector 264, which may mean that: a flexible circuit board 252 is provided on the protection board 232, the protection board 232 is electrically connected to the fourth connector 264 via the flexible circuit board 252, and the main board 240 is electrically connected to the fourth connector 264, so that the protection board 232 is electrically connected to the main board 240 via the flexible circuit board 252 and the fourth connector 264.

[0078] Exemplarily, the protection board 232 is electrically connected to the main board 240 via the fourth connector 264, which may also mean that a flexible circuit board 252 is provided on the main board 240, the main board 240 is electrically connected to the fourth connector 264 via the flexible circuit board 252, and the protection board 232 is electrically connected to the fourth connector 264, so that the protection board 232 is electrically connected to the main board 240 via the fourth connector 2643 and the flexible circuit board 252.

[0079] In the charging device 200 provided in the embodiment of the present application, the protection board 232 is directly electrically connected to the main board 240 through the fourth connector 264, and there is no need to be indirectly electrically connected to the main board 240 through the small board 220 or the flexible circuit board 250. The path for the battery 231 to supply power to the main board 240 is shorter, and power supply is more convenient.

[0080] In a possible implementation, the protection board 232 is used to transmit the second electrical signal output by the battery 231 to the mainboard 240 through the fourth connector 264 when the battery 231 is discharged.

[0081] In the charging device 200 provided in the embodiment of the present application, when the battery 231 is discharged, the battery 231 can transmit the second electrical signal to the mainboard 240 through the protection board to power the mainboard 240, and the path for the battery 231 to power the mainboard 240 is not lengthened.

[0082] The electrical connection method of the small board 220, the battery 231, and the main board 240 is introduced above. Next, several configuration methods of the protection board 232 will be introduced.

[0083] In a first possible implementation, the protection plate 232 is disposed on a side of the battery 231 close to the small plate 220. The side of the battery 231 close to the small plate 220 may be: a side of the battery 231 that is closest to the small plate 220 among multiple sides. Figure 7 and Fig.10As shown, the side of the battery 231 close to the small board 220 can be the lower side of the battery 231. By adjusting the orientation of the battery compartment for placing the battery 231 and the protection board 232, the protection board 232 can be arranged on the side of the battery 231 close to the small board 220.

[0084] In the charging device 200 provided in the embodiment of the present application, the protection board 232 is arranged on the side of the battery 231 close to the small board 220, which is convenient for the protection board 232 to be electrically connected to the small board 220. The path of the electrical connection between the protection board 232 and the small board 220 is shorter, and the path for the first charging circuit to charge the battery is shorter.

[0085] In a second possible implementation, the protection plate 232 is disposed on a side of the battery 231 close to the main board 240. The side of the battery 231 close to the main board 240 may be: a side of the battery 231 that is closest to the main board 240 among multiple sides. Fig. 9 and Fig.13 As shown, the side of the battery 231 close to the main board 240 can be the upper side of the battery 231. By adjusting the orientation of the battery compartment for placing the battery 231 and the protection plate 232, the protection plate 232 can be arranged on the side of the battery 231 close to the main board 240.

[0086] In the charging device 200 provided in the embodiment of the present application, the protection plate 232 is arranged on the side of the battery 231 close to the main board 240. Without changing the orientation of the battery compartment for placing the battery 231 and the protection plate 232, only the protection plate is added between the protection plate 232 and the small board 220. With minor changes to the circuit, the charging path of the battery can be shortened.

[0087] In a third possible implementation, the protection plate 232 is disposed on a side of the battery 231 away from the main board 240 and the small board 220 .

[0088] The side of the battery 231 away from the main board 240 and the small board 220 may be any side of the battery 231 except the side close to the main board 240 and the side close to the small board 220. Figure 8 , Fig.11 and Fig.12 As shown, the upper side of the battery 231 is close to the main board 240, the lower side of the battery 231 is close to the small board 220, and the side of the battery 231 away from the main board 240 and the small board 220 can be the left side or the right side of the battery 231. By adjusting the orientation of the battery compartment for placing the battery 231 and the protective plate 232, the protective plate 232 can be set on the side of the battery 231 away from the main board 240 and the small board 220.

[0089] In the charging device 200 provided in the embodiment of the present application, the protection board 232 is arranged on the side of the battery 231 away from the main board 240 and the small board 220. On the one hand, it is convenient to electrically connect the protection board 232 with the small board 220, the path for electrically connecting the protection board 232 with the small board 220 is shorter, and the path for the first charging circuit to charge the battery is shorter. On the other hand, it is convenient to electrically connect the protection board 232 with the main board 240, the path for electrically connecting the protection board 232 with the main board 240 is shorter, and the path for the battery 232 to power the main board 240 is shorter.

[0090] Next, Fig.11 Taking as an example, the connection relationship of the components of the charging device 200 and the charging path and the power supply path are specifically illustrated.

[0091] In one example, the number of first charging circuits is one, and C2 is used as an example to illustrate the first charging circuit. The first charging circuit C2 can be electrically connected to the interface 210 through the wiring on the small board 220. The first charging circuit C2 can be electrically connected to the protection board 232 through the connector 263. When the battery 231 of the charging device 200 is charged, the electrical signal E11 is input by the interface 210 and reaches the first charging circuit C2 through the small board 220. The first charging circuit C2 receives the electrical signal E11, performs a step-up or step-down conversion on the electrical signal E11, and outputs the electrical signal E12 to the protection board 232 via the third connector 263. The electrical signal E12 can enter the battery 231 through the protection board 232 for storage, thereby achieving the purpose of charging and storing energy for the battery 231.

[0092] Furthermore, the first charging circuit C2 can also be electrically connected to the flexible circuit board 250 through the wiring and connector 261 on the small board 220. The flexible circuit board 250 can be electrically connected to the main board 240 through the connector 262. When the battery 231 of the charging device 200 is charged, the first charging circuit C2 performs a voltage step-up or voltage step-down conversion on the electrical signal E11, and also outputs an electrical signal E13, which reaches the main board 240 through the first connector 261, the flexible circuit board 250 and the second connector 262, thereby powering the electronic devices provided on the main board 240.

[0093] Furthermore, the protection board 232 is electrically connected to the main board 240 via the connector 264. When the battery 231 of the charging device 200 is discharged, the battery 231 outputs an electrical signal E14 to the main board 240 via the fourth connector 264, thereby powering the electronic devices disposed on the main board 240.

[0094] In another example, there are multiple first charging circuits, and C2 and C3 are both first charging circuits. The first charging circuit C2 can be electrically connected to the interface 210 through wiring on the small board 220. The first charging circuit C2 is electrically connected to the first charging circuit C3, and the first charging circuit C3 is electrically connected to the protection board 232.

[0095] When the battery 231 of the charging device 200 is charged, the electrical signal E15 is inputted by the interface 210 and reaches the first charging circuit C2 through the small board 220. The first charging circuit C2 receives the electrical signal E15, and the first charging circuits C2 and C3 cooperate to perform step-up or step-down conversion on the electrical signal E15, and the first charging circuit C3 outputs the electrical signal E16 to the protection board 232 via the third connector 263. The electrical signal E16 can enter the battery 231 through the protection board 232 for storage, thereby achieving the purpose of charging and storing energy for the battery 231.

[0096] Furthermore, the first charging circuit C3 can also be electrically connected to the flexible circuit board 250 through the wiring on the small board 220 and the connector 260. The flexible circuit board 250 can be electrically connected to the main board 240 through the connector 260. When the battery 231 of the charging device 200 is charged, the first charging circuits C2 and C3 cooperate to step up or step down the electrical signal E15, and the first charging circuit C3 also outputs the electrical signal E17, which reaches the main board 240 through the first connector 261, the flexible circuit board 250 and the second connector 262, thereby powering the electronic devices provided on the main board 240.

[0097] Furthermore, the protection board 232 is electrically connected to the main board 240 via the fourth connector 264. When the battery 231 of the charging device 200 is discharged, the battery 231 outputs an electrical signal E18 to the main board 240 via the fourth connector 264, thereby powering the electronic devices disposed on the main board 240.

[0098] In another example, a second charging circuit is provided on the main board 240, and C2 is used as the first charging circuit and B is used as the second charging circuit for illustration. The first charging circuit C2 can be electrically connected to the interface 210 through the wiring on the small board 220. The first charging circuit C2 can be electrically connected to the protection board 232 through the connector 260. When the battery 231 of the charging device 200 is charged, the electrical signal E19 is input by the interface 210 and reaches the first charging circuit C2 through the small board 220. The first charging circuit C2 receives the electrical signal E19, performs a step-up or step-down conversion on the electrical signal E19, and outputs the electrical signal E20 to the protection board 232 via the first connector 261. The electrical signal E20 can enter the battery 231 through the protection board 232 for storage, thereby achieving the purpose of charging and storing energy for the battery 231.

[0099] Further, the flexible circuit board 250 can be electrically connected to the interface 210 through the wiring and connector 260 on the small board 220, and the flexible circuit board 250 can be electrically connected to the second charging circuit B through the wiring and connector 260 on the main board 240. When the battery 231 of the charging device 200 is charged, the electrical signal from the interface 210 not only reaches the first charging circuit C2, but also reaches the second charging circuit B through the small board 220, the first connector 261, the flexible circuit board 250 and the second connector 262. The second charging circuit B receives the electrical signal from the interface 210, performs a step-up or step-down conversion on the electrical signal, and outputs an electrical signal E21, thereby powering the electronic devices provided on the main board 240.

[0100] Furthermore, the protection board 232 is electrically connected to the main board 240 via the fourth connector 264. When the battery 231 of the charging device 200 is discharged, the battery 231 outputs an electrical signal E22 to the main board 240 via the fourth connector 264, thereby powering the electronic devices disposed on the main board 240.

[0101] Fig.11 The internal structure of the charging device 200 is shown in FIG. Fig.12 The internal structure of the charging device 200 shown is different in that: Fig.11 In the embodiment, a second charging circuit is provided on the main board 240, for example, B is the second charging circuit. Fig.12 In the embodiment, a plurality of second charging circuits are provided on the mainboard 240, such as C2 and B, which can be used as the second charging circuit. When the battery 231 of the charging device 200 is charged, C2 and B cooperate to step up or step down the electrical signal from the interface 210, and output the electrical signal to the mainboard 240, thereby powering the electronic devices provided on the mainboard 240.

[0102] Next, combine Fig.14 A possible connection method of the flexible circuit board 250 and the protection board 232 is introduced. In a possible implementation, the charging device 200 further includes a second connector 262, a third connector 263, a flexible circuit board 250, and a protection board 232 electrically connected to the battery 231. The flexible circuit board 250 is electrically connected to the main board 240 through the second connector 262, and the flexible circuit board 250 is electrically connected to the protection board 232. The protection board 232 is arranged on a side of the battery 231 close to the small board 220, and the protection board 232 is electrically connected to the small board 220 through the third connector 263.

[0103] In the charging device 200 provided in the embodiment of the present application, if the protection board 232 is arranged on the side of the battery 231 close to the small board 220, the flexible circuit board 250 can also be directly electrically connected to the protection board 232, and the battery 231 can supply power to the main board 240 through the protection board 232. When the battery 231 is discharged, the power supply path of the main board 240 does not need to pass through the small board 220, and the power supply path is shorter.

[0104] In a possible implementation manner, the first charging circuit is specifically configured to transmit the first electrical signal to the mainboard 240 through the protection board 232 and the flexible circuit board 250 .

[0105] In the charging device 200 provided in the embodiment of the present application, if the protection board 232 is arranged on the side of the battery 231 close to the small board 220, the flexible circuit board 250 is electrically connected to the main board 240 through the second connector 262, and the flexible circuit board 250 is electrically connected to the protection board 232, when the battery 231 is charged, the first charging circuit can also transmit the first electrical signal to the main board 240 through the protection board 232 and the flexible circuit board 250. In this way, the charging speed can be improved without affecting the power supply of the battery 231 to the main board 240.

[0106] In a possible implementation, the protection board 232 is used to transmit the second electrical signal output by the battery 231 to the main board 240 through the flexible circuit board 250 when the battery 231 is discharged.

[0107] In the charging device 200 provided in the embodiment of the present application, if the protection board 232 is arranged on the side of the battery 231 close to the small board 220, the flexible circuit board 250 is electrically connected to the main board 240 through the second connector 262, and the flexible circuit board 250 is electrically connected to the protection board 232. When the battery 231 is discharged, the second electrical signal is transmitted to the main board 240 through the protection board 232 and the flexible circuit board 250. In this way, the charging speed can be improved without affecting the power supply of the battery 231 to the main board 240.

[0108] Next, Fig.14 Taking as an example, the connection relationship of the components of the charging device 200 and the charging path and the power supply path are specifically introduced.

[0109] In one example, the number of first charging circuits is one, and C2 is used as an example to illustrate the first charging circuit. The first charging circuit C2 can be electrically connected to the interface 210 through the wiring on the small board 220. The first charging circuit C2 can be electrically connected to the protection board 232 through the third connector 263, wherein the number of connectors 263 can be one or more. When the battery 231 of the charging device 200 is charged, the electrical signal E31 is input by the interface 210 and reaches the first charging circuit C2 through the small board 220. The first charging circuit C2 receives the electrical signal E31, performs a step-up or step-down conversion on the electrical signal E31, and outputs the electrical signal E32 to the protection board 232 via the third connector 263. The electrical signal E32 can enter the battery 231 through the protection board 232 for storage, thereby achieving the purpose of charging and storing energy for the battery 231.

[0110] Further, the first charging circuit C2 can also be electrically connected to the flexible circuit board 250 through the wiring on the small board 220, the third connector 263 and the protection board 232. The flexible circuit board 250 can be electrically connected to the main board 240 through the second connector 262. When the battery 231 of the charging device 200 is charged, the first charging circuit C2 performs a step-up or step-down conversion on the electrical signal E31, and also outputs an electrical signal E33, which passes through the third connector 263, the protection board 232, the flexible circuit board 250 and the second connector 261 to reach the main board 240, thereby powering the electronic devices set on the main board 240. When the battery 231 of the charging device 200 is discharged, the battery 231 outputs an electrical signal E34, which passes through the protection board 232, the flexible circuit board 250 and the second connector 261 to reach the main board 240, thereby powering the electronic devices set on the main board 240.

[0111] In another example, the number of the first charging circuits is multiple, and C2 and C3 are both first charging circuits for illustration. The first charging circuit C2 can be electrically connected to the interface 210 through the wiring on the small board 220. The first charging circuit C2 is electrically connected to the first charging circuit C3, and the first charging circuit C3 is electrically connected to the protection board 232 through the third connector 263. When the battery 231 of the charging device 200 is charged, the electrical signal E35 is input by the interface 210 and reaches the first charging circuit C2 through the small board 220. The first charging circuit C2 receives the electrical signal E35, and the first charging circuit C2 and C3 cooperate to perform a step-up or step-down conversion on the electrical signal E35, and the first charging circuit C3 outputs the electrical signal E36 via the third connector 263 to the protection board 232. The electrical signal E36 can enter the battery 231 through the protection board 232 for storage, thereby achieving the purpose of charging and storing energy for the battery 231.

[0112] Further, the first charging circuit C3 can also be electrically connected to the flexible circuit board 250 through the wiring on the small board 220, the third connector 263 and the protection board 232. The flexible circuit board 250 can be electrically connected to the main board 240 through the second connector 262. When the battery 231 of the charging device 200 is charged, the first charging circuits C2 and C3 cooperate to step up or step down the electrical signal E35, and the first charging circuit C3 also outputs an electrical signal E37, which passes through the third connector 263, the protection board 232, the flexible circuit board 250 and the second connector 261 to reach the main board 240, thereby powering the electronic devices set on the main board 240. When the battery 231 of the charging device 200 is discharged, the battery 231 outputs an electrical signal E38, and the electrical signal E34 passes through the protection board 232, the flexible circuit board 250 and the second connector 261 to reach the main board 240, thereby powering the electronic devices set on the main board 240.

[0113] In another example, a second charging circuit is provided on the main board 240, and C2 is used as the first charging circuit and B is used as the second charging circuit for illustration. The first charging circuit C2 can be electrically connected to the interface 210 through the wiring on the small board 220. The first charging circuit C2 can be electrically connected to the protection board 232 through the third connector 263. When the battery 231 of the charging device 200 is charged, the electrical signal E39 is input by the interface 210 and reaches the first charging circuit C2 through the small board 220. The first charging circuit C2 receives the electrical signal E39, performs a step-up or step-down conversion on the electrical signal E39, and outputs the electrical signal E40 to the protection board 232 via the third connector 263. The electrical signal E40 can enter the battery 231 through the protection board 232 for storage, thereby achieving the purpose of charging and storing energy for the battery 231.

[0114] Further, the flexible circuit board 250 can be electrically connected to the interface 210 through the protection board 232, the third connector 263 and the wiring on the small board 220, and the flexible circuit board 250 can be electrically connected to the second charging circuit B through the second connector 262 and the wiring on the main board 240. When the battery 231 of the charging device 200 is charged, the electrical signal input by the interface 210 not only reaches the first charging circuit C2, but also reaches the second charging circuit B through the small board 220, the third connector 263, the protection board 232, the flexible circuit board 250 and the second connector 262. The second charging circuit B receives the electrical signal from the interface 210, performs a step-up or step-down conversion on the electrical signal, and outputs an electrical signal E41 to power the electronic devices provided on the main board 240.

[0115] When the battery 231 of the charging device 200 is discharged, the battery 231 outputs an electrical signal E42 , and the electrical signal E42 reaches the mainboard 240 through the protection board 232 , the flexible circuit board 250 and the second connector 262 , thereby supplying power to the electronic devices disposed on the mainboard 240 .

[0116] Exemplarily, the first charging circuit may include: at least one of a charging switched capacitor circuit (SC), a metal oxide semiconductor (MOS) field effect transistor or a step-down (buck) circuit, and the second charging circuit includes: at least one of a SC circuit, a MOS transistor or a buck circuit.

[0117] In a possible implementation, in the arrangement direction of the small board 220, the battery 231 and the main board 240, the projections of the small board 220 and the main board 240 do not overlap. The first surface of the small board 220 is used to set electronic devices, the second surface of the main board 240 is used to set electronic devices, the first surface of the small board 220, the battery and the second surface of the main board 240 are arranged in parallel, and the arrangement direction of the small board 220, the battery 231 and the main board 240 may refer to the plane where the first surface is located.

[0118] In the charging device 200 provided in the embodiment of the present application, in the arrangement direction of the small board 220, the battery 231 and the main board 240, the projections of the small board 220 and the main board 240 do not overlap, that is, the small board 220 and the main board 240 are placed horizontally and separated, rather than stacked vertically, and the distance between the small board 220 and the main board 240 is relatively far. This disperses the heat source, reduces the heat at the first charging chip, alleviates the problem of thermal current limiting of the first charging chip, and improves the charging speed.

[0119] The present application also provides an electronic device. The structure of the electronic device can refer to Fig.15 The electronic device comprises a housing 300 and a charging device 200 (eg Figures 5 to 14 The charging device 200 is arranged on the housing 300 shown.

[0120] Finally, it should be noted that the above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A charging device, characterized in that: The charging device comprises a small board, a battery and a main board; the small board and the main board are located on two opposite sides of the battery, an interface is provided on a side of the small board away from the battery, and the battery and the main board are both electrically connected to the small board; Among them, a first charging circuit is arranged on the small board, and the first charging circuit is used to receive a first electrical signal through the interface, and supply power to the battery and the main board through the first electrical signal.

2. The charging device according to claim 1, characterized in that: The charging device further includes a flexible circuit board, a first connector and a second connector. The flexible circuit board is electrically connected to the small board through the first connector and is electrically connected to the main board through the second connector.

3. The charging device according to claim 2, characterized in that: The first charging circuit is specifically used to transmit the first electrical signal to the mainboard through the flexible circuit board.

4. The charging device according to any one of claims 1 to 3, characterized in that: The mainboard is provided with a second charging circuit, and the second charging circuit is used to receive a first electrical signal through the interface and to supply power to the mainboard through the first electrical signal.

5. The charging device according to any one of claims 1 to 4, characterized in that: The charging device further comprises a third connector and a protection board electrically connected to the battery, and the protection board is electrically connected to the small board via the third connector.

6. The charging device according to claim 5, characterized in that: The first charging circuit is specifically configured to transmit the first electrical signal to the battery through the protection board.

7. The charging device according to claim 5 or 6, characterized in that: The protection board is used to transmit the second electrical signal output by the battery to the main board through the small board and the flexible circuit board when the battery is discharged.

8. The charging device according to claim 5 or 6, characterized in that: The charging device further includes a fourth connector, and the protection board is electrically connected to the main board via the fourth connector.

9. The charging device according to claim 8, characterized in that: The protection board is used for transmitting the second electrical signal output by the battery to the main board through the fourth connector when the battery is discharged.

10. The charging device according to any one of claims 5 to 9, characterized in that: The protection plate is arranged on a side of the battery away from the main board and the small board.

11. The charging device according to any one of claims 5 to 9, characterized in that: The protection plate is arranged on a side of the battery close to the small plate.

12. The charging device according to any one of claims 5 to 9, characterized in that: The protection plate is arranged on a side of the battery close to the main board.

13. The charging device according to claim 1, characterized in that: The charging device further comprises a second connector, a third connector, a flexible circuit board and a protection board electrically connected to the battery; The flexible circuit board is electrically connected to the main board through the second connector, the flexible circuit board is electrically connected to the protection board, the protection board is arranged on a side of the battery close to the small board, and the protection board is electrically connected to the small board through the third connector.

14. The charging device according to claim 13, characterized in that: The first charging circuit is specifically used to transmit the first electrical signal to the main board through the protection board and the flexible circuit board.

15. The charging device according to claim 13 or 14, characterized in that: The protection board is used to transmit the second electrical signal output by the battery to the main board through the flexible circuit board when the battery is discharged.

16. The charging device according to any one of claims 1 to 15, characterized in that: In the arrangement direction of the small board, the battery and the main board, the projections of the small board and the main board do not overlap.

17. An electronic device, characterized in that: The electronic device comprises a housing and a charging device according to any one of claims 1 to 16, wherein the charging device is arranged on the housing.

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