CN111969168B

CN111969168B - Battery pack and electronic device

Info

Publication number: CN111969168B
Application number: CN201910418552.7A
Authority: CN
Inventors: 谢红斌; 田晨
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-05-20
Filing date: 2019-05-20
Publication date: 2023-03-17
Anticipated expiration: 2039-05-20
Also published as: CN111969168A

Abstract

The application provides a battery pack and electronic equipment, battery pack include electric core, protection shield. One end of the battery cell is provided with a tab. The number of the battery cells is at least two. The protection plate is connected with the battery cell through the pole lugs and used for providing protection. The protection shield is equipped with first port and second port, and charges for electric core via the protection shield from the electric current of first port input, and electric core is via second port output current. Wherein, at least two electric cores are distributed on two sides of the protection plate. The pole ear of each battery cell faces the protection plate. When a connection circuit is provided between the charging port and the protection board, the length of the line from the charging port to the protection board is shorter than the distance of the protection board provided at the edge of the housing away from the charging port, and therefore the resistance of the line from the charging port to the protection board is smaller and the amount of heat generated is lower. Therefore, the problem that the charging speed is greatly influenced by the heat generated by the line can be avoided, and the charging efficiency is improved.

Description

Battery pack and electronic device

Technical Field

The present application relates to the field of charging and discharging technologies, and in particular, to a battery pack and an electronic device.

Background

When the electric core of the existing electronic equipment supplies power to the mainboard, heat is easily generated, so that the charging speed is influenced, and the problem of low charging efficiency is caused.

Disclosure of Invention

In view of the above problems, embodiments of the present application provide a battery pack and an electronic device that can reduce heat generation and increase charging speed.

A battery assembly, comprising:

the battery comprises battery cells, wherein one ends of the battery cells are provided with tabs, and the number of the battery cells is at least two;

the protective plate is connected with the battery cell through the lug and is used for protecting the battery cell; the protection board is provided with a first port and a second port, current input from the first port charges the battery cell through the protection board, and the battery cell outputs current through the second port;

the at least two battery cells are distributed on two sides of the protection plate, and the tab of each battery cell faces the protection plate.

An electronic device comprising the electronic component.

In one embodiment, the battery pack further comprises a casing, the casing comprises a first end and a second end which are opposite to each other, the protection plate is arranged between the first end and the second end, two sides of the protection plate are opposite to the first end and the second end respectively, and at least one battery cell is arranged between the first end and the protection plate and between the second end and the protection plate respectively;

the first end is provided with a charging port, the charging port is connected with the first port, and current input from the charging port charges the battery cell through the first port;

the power supply end of the electronic equipment is arranged between the second end and the battery pack, the power supply end is connected with the second port, and the battery core outputs current via the second port to supply power to the power supply end.

In one embodiment, the at least two cells are connected in series by the protection plate.

In one embodiment, two sides of the protection plate are respectively provided with one battery cell, and the two battery cells are connected in parallel.

In one embodiment, the first port is connected to the second port.

In one embodiment, further comprising:

one end of the first branch is connected with the anode of the charging port, and the other end of the first branch is respectively connected with the anode of the first port, the anode of the second port and the anode of the power supply end;

and one end of the second branch is connected with the negative electrode of the charging port, and the other end of the second branch is respectively connected with the negative electrode of the first port, the negative electrode of the second port and the negative electrode of the power supply end.

In one embodiment of the method of manufacturing the optical fiber,

in a direction perpendicular to the arrangement direction of the first end and the second end, the positive pole and the negative pole of the first port are respectively located on two opposite sides of the protection plate, the positive pole and the negative pole of the second port are respectively located on two sides of the protection plate, the positive pole of the first port and the positive pole of the second port are located on the same side of the protection plate, the negative pole of the first port and the negative pole of the second port are located on the same side of the protection plate, and in a direction perpendicular to the arrangement direction of the first end and the second end, the first branch and the second branch respectively extend along two opposite sides of the protection plate.

In one embodiment, in a direction perpendicular to the arrangement direction of the first end and the second end, the positive electrode and the negative electrode of the first port and the positive electrode and the negative electrode of the second port are disposed on the same side of the protection plate, and the first branch and the second branch extend along a side of the housing where the positive electrode of the first port and the positive electrode and the negative electrode of the second port are located.

In one embodiment, the power supply device further comprises a main board disposed on the housing and close to the second end relative to the first end, and the main board is connected to the power supply end.

The battery pack and the electronic equipment provided by the embodiment of the application have the advantages that at least two battery cells are distributed on two sides of the protection plate. And the pole ear of each battery cell is arranged towards the protection plate. Therefore, when the electronic component is placed in the electronic apparatus, the protective plate is not located near the edge of the housing of the electronic apparatus, but is located substantially in the middle of the housing. The charging port of the electronic apparatus is generally located at the edge of the housing of the electronic apparatus, and therefore, when the connection circuit is provided between the charging port and the protection board, the length of the line from the charging port to the protection board is shorter than the distance at which the protection board is provided at the edge of the housing away from the charging port, and therefore the resistance of the line from the charging port to the protection board is smaller and the amount of heat generated is lower. Therefore, the problem that the charging speed is greatly influenced by the heat generated by the line can be avoided, and the charging efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram of a cell arrangement manner in the prior art;

fig. 2 is a structural diagram of a battery pack according to an embodiment of the present application;

FIG. 3 is a schematic diagram of an electronic device provided by an embodiment of the present application;

fig. 4 is a schematic diagram of series connection of battery cells provided in an embodiment of the present application;

fig. 5 provides a schematic diagram of cell series connections according to another embodiment of the present disclosure;

fig. 6 is a schematic diagram of cell series connection provided in another embodiment of the present application;

fig. 7 provides a schematic diagram of cell series connections according to another embodiment of the present disclosure;

fig. 8 is a schematic diagram of parallel connection of battery cells according to an embodiment of the present application;

fig. 9 is a schematic diagram of parallel connection of battery cells according to another embodiment of the present application;

FIG. 10 is a schematic diagram of a connection between a first port and a second port provided by an embodiment of the present application;

FIG. 11 is a schematic diagram of an electronic device according to another embodiment of the present application;

fig. 12 is a schematic view of an electronic device according to another embodiment of the present application.

Description of reference numerals:

battery assembly 10

Case 100

First end 110

Charging port 112

Second end 120

Power supply terminal 122

Protection plate 140

First port 141

Second port 142

Battery cell 150

Tab 152

First branch 220

Second branch 250

Main board 260

Adapter 300

Electronic device 20

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first battery cell may be referred to as a second battery cell, and similarly, a second battery cell may be referred to as a first battery cell, without departing from the scope of the present application. The first battery cell and the second battery cell are both battery cells, but are not the same battery cell.

Referring to fig. 1, in an embodiment, the electronic device 20 adopts a series connection of two battery cells 150. The cell 150 generally includes a head. The head of the battery cell 150, that is, the battery cell 150, is provided with positive and negative electrodes, and the head of the battery cell 150 is generally provided with tabs 152 for connecting with the positive and negative electrodes of the battery cell 150. The tab 152 is connected to the protection plate 140, the protection plate 140 is disposed on a side close to the main board 260, and the main board 260 is disposed away from the charging port 112 of the electronic device 20. Therefore, the tab 152 is distant from the charging port 112. When the charging port 112 charges the battery cell 150 through the protection plate 140, the length of the wire between the charging port 112 and the tab 152 is long, which causes a large resistance between the charging port 112 and the tab 152, and is likely to cause a phenomenon of a large increase in heat generation. And when the heat reaches a certain level, the charging current is forced to decrease, thereby affecting the overall charging speed. Therefore, how to shorten the entire current path has a great influence on increasing the charging speed.

Referring to fig. 2, an embodiment of the present application provides a battery assembly 10. The battery assembly 10 includes a cell 150 and a protective plate 140. One end of the battery cell 150 is provided with a tab 152. The number of the cells 150 is at least two. The protection plate 140 is connected to the battery cell 150 through a tab 152, and is used for protecting the battery cell 150. The protection plate 140 is provided with a first port 141 and a second port 142, and the battery cell 150 is charged by the current input from the first port 141 through the protection plate 140, and the battery cell 150 outputs the current through the second port 142. At least two battery cells 150 are distributed on two sides of the protection plate 140, and each side of the protection plate 140 is provided with at least one battery cell 150. The tab 152 of each cell 150 faces the protection plate 140.

In the present embodiment, the battery pack 10 may be used for the electronic device 20. The protection board 140 may be provided with a protection circuit. The protection circuit can prevent the battery cell 150 from being overcharged and overdischarged, and has a short-circuit protection function. The protection plate 140 may also be provided with a battery fuel gauge. The battery fuel gauge may estimate battery capacity, monitor voltage, monitor charge current, discharge current, and battery temperature, and estimate battery state of charge. The cells 150 may be lithium ion materials. The battery cell 150 may have multiple charge and discharge functions.

When the battery assembly 10 is used, the battery assembly 10 may be placed in the electronic device 20. The first port 141 is connected to the charging port 112 of the electronic device, and the second port 142 is connected to the power supply terminal 122 of the electronic device. Therefore, the electric current input through the charging port 112 may charge the battery cell 150 through the first port 141 and the protection plate 140. When the electronic device 20 needs to work, the battery cell 150 supplies power to the electronic device 20 through the second port 142, so as to ensure that the electronic device 20 operates normally.

It is understood that the length of the charging line of the electronic device 20 is the distance from the charging port 112 to the protection board 114. In the embodiment shown in fig. 1, the main board 260 of the electronic device 20 is disposed on a side of the housing 100 away from the charging port 112, and the protection board 140 is disposed on a side of the housing 100 close to the main board 260, so that the protection board 140 is also disposed away from the charging port 112. In this embodiment, since the at least two battery cells 150 are distributed on two sides of the protection plate 140, that is, the protection plate 140 is disposed between the at least two battery cells 150, and the tab 152 of each battery cell 150 is disposed toward the protection plate 140. Therefore, when the electronic assembly 10 is placed on the electronic device 20, the protection plate 140 does not come close to the edge of the casing 100 of the electronic device 20, that is, the edge of the casing 100 is occupied by the battery cell 150. Therefore, the protection plate 140 is located at the middle of the casing 100, and compared with the protection plate 140 located at the side of the casing 100 far from the charging port 112, when the protection plate 140 is located at the middle of the casing 100, the protection plate 140 is closer to the charging port 112, so that the resistance of the line from the charging port 112 to the protection plate 140 is smaller, the heat generation amount is lower, the problem that the charging speed is greatly influenced by the heat generation amount of the line can be avoided, and the charging efficiency is improved.

Referring to fig. 3, an electronic device 20 is further provided in the embodiment of the present application. The electronic device 20 comprises the electronic assembly 10. It is understood that when the electronic assembly 10 is disposed on the electronic device 20, the protective plate is not located near the edge of the housing 100 of the electronic device 20, but is located at approximately the middle of the housing 100. Consequently based on the beneficial effect of above-mentioned embodiment, electronic equipment 2 also has that the circuit heat production that charges is lower when charging, therefore can avoid because the circuit heat production greatly influences the problem of the speed of charging, and then has improved charge efficiency.

In one embodiment, the electronic device 20 further includes a housing 100, and the battery assembly 10 is disposed in the housing 100. In one embodiment, the housing 100 includes opposing first and second ends 110, 120. The protection plate 140 is disposed between the first end 110 and the second end 120. The protection plate 140 is disposed between the first end 110 and the second end 120, and two sides of the protection plate 140 are respectively opposite to the first end 110 and the second end 120. At least one battery cell 150 is disposed between the first end 110 and the protection plate 140. At least one cell 150 is disposed between the second end 120 and the protective plate 140. The first end 110 is provided with a charging port 112, and the charging port 112 is connected to the first port 141. The electric current input from the charging port 112 charges the battery cell 150 through the first port 141. The power supply terminal 122 of the electronic device 20 is disposed between the second terminal 120 and the battery assembly 10. The power supply end 122 is connected to the second port 142, and the battery cell 150 outputs current through the second port 142 to supply power to the power supply end 122.

The housing 100 may be used to house a battery panel and a battery cell 150. The housing 100 may have a rectangular parallelepiped, square, or other structure. The material of the housing 100 may be polyester material or metal material. The first end 110 and the second end 120 may be opposite sides of the housing 100. The first end 110 and the second end 120 may have a receiving space therebetween. To place the protective plate 140 and the cells 150. The charging port 112 may be a type-c interface, a micro USB interface, a lightning interface, or the like, without limitation.

The power terminal 122 may be used to power the electronic device 20. The power supply terminal 122 may be connected to a motherboard 260 of the electronic device 20. The motherboard 260 may serve as a carrier for the control system of the electronic device 20. The main board 260 may be provided with a central processor, various sensors, and the like. When the battery cell 150 needs to be charged, after the charging port 112 is connected to a power supply, the power supply can charge the battery cell 150 through the charging port 112 and the protection plate 140. When the main board 260 needs to supply power, the battery cell 150 may supply power to the main board 260 through the protection board 140.

In this embodiment, since the charging port 112 is disposed at the first end 110, the power supply end 122 is disposed between the second end 120 and the battery assembly 10, i.e., the power supply end 122 is disposed at a side of the battery assembly 10 away from the first end 110. And the first end 110 and the second end 120 are oppositely disposed, and the protection plate 140 is disposed between the first end 110 and the second end 120. The tabs 152 are all disposed toward the protective plate 140, and at least one cell 150 is disposed between the first end 110 and the protective plate 140, and between the second end 120 and the protective plate 140, respectively. Therefore, when a connection circuit is provided between the charging port 112 and the protection plate 140, the length of a line from the charging port 112 to the protection plate 140 is approximately a distance of only the width of one battery cell 150. When the protection board 140 is disposed at a position close to the power supply end 122, the line from the charging port 112 to the protection board 140 is approximately the distance between the widths of the two battery cores 150, so that the resistance of the line from the charging port 112 to the protection board 140 of the electronic device 20 provided by this embodiment is smaller, the heat generation amount is lower, and therefore the problem that the charging speed is greatly affected by the heat generation amount of the line can be avoided, and the charging efficiency is further improved.

In some embodiments, the protection plate 140 is disposed at a side near the power supply end 122. When the tabs 152 of the plurality of battery cells 150 are all disposed toward the protection plate 140, the plurality of battery cells 150 are disposed side by side. In order to reduce the internal resistance of the battery, a tab 152 is usually disposed at the head of the battery cell 150. The limitation of the tabs 152 may minimize the width of the battery, and thus the width of the tabs 152 facing the same direction may be minimized, limiting or even increasing the width of the electronic device 20. When the power supply end 122 and the charging port 112 are not changed in position, the tabs 152 of the plurality of battery cells 150 are opposite to each other, and the battery cells 150 are disposed on both sides of the protection plate 140, so that the width of the electronic device 20 may not be limited by the width of the battery cells 150. But merely the length of the cell 150. Generally, the sum of the widths of the two battery cells 150 is greater than the length of the battery cells 150, so that when the number of the battery cells 150 is the same, the width of the electronic device 20 may be reduced in the arrangement manner of the battery cells 150 in this embodiment, and the flexibility of arrangement of the battery cells 150 is improved.

Referring to fig. 4 and 5, in an embodiment, at least two battery cells 150 are connected in series through the protection plate 140. At least two cells 150 may be connected in series to the first port 141 and the second port 142.

The current output from the charging port 112 charges the at least two battery cells 150 through the protection plate 140. The at least two battery cells 150 discharge electricity to the power supply terminal 122 through the protection plate 140. The cell 150 may be connected to the protection plate 140 via tabs 152. A circuit connecting the battery cells 150 in series may be provided in the protection plate 140. The charging speed of the electronic device 20 can be increased by connecting the battery cells 150 in series, and meanwhile, the heat generation phenomenon in the charging process can be relieved.

Referring to fig. 6 and fig. 7, in an embodiment, two sides of the protection plate 140 are respectively provided with one battery cell 150. Alternatively, one battery cell 150 and two battery cells 150 are disposed on both sides of the protection plate 140, respectively. The number of the battery cells 150 may be determined according to the electric quantity required by the electronic device 20. The tabs 152 of all the battery cells 150 are disposed toward the protection plate 140, and thus the distance from the charging port 112 to the protection plate 140 is relatively short, so that heat generation of the charging path can be reduced.

Referring to fig. 8 and fig. 9, in an embodiment, two battery cells 150 are respectively disposed on two sides of the protection plate 140, and the two battery cells 150 are connected in parallel. Two cells 150 may be connected in parallel to the first port 141 and the second port 142. When the battery cell 150 needs to supply power, the battery cell 150 may be charged by the current from the charging port 112 through the first port 141. When the power supply end 122 needs to supply power, the power supply end 122 can supply power through the second port 142 via the parallel battery cell 150.

Referring to fig. 10, in one embodiment, the first port 141 is connected to the second port 142. Therefore, when the electronic device 20 needs to be powered by the power supply of the battery cell 150, the charging port 112 may directly power the electronic device 20 through the first port 141 and the second port 142. Without outputting current from the second port 142 to power the electronic device 20 through the battery cell 150. The series circuit 210 is no longer required to power the motherboard 260, thus reducing the current path and heat generation.

Referring again to fig. 8 and 9, in one embodiment, the electronic device 20 further includes a first branch 220 and a second branch 250.

One end of the first branch 220 is connected to the positive electrode of the charging port 112, and the other end of the first branch 220 is connected to the positive electrode of the first port 141, the positive electrode of the second port 142, and the positive electrode of the power supply terminal 122. One end of the second branch 250 is connected to the negative electrode of the charging port 112, and the other end of the second branch 250 is connected to the negative electrodes of the first port 141, the second port 142, and the power supply terminal 122, respectively.

Therefore, when it is necessary to supply power to the battery cell 150, a circuit constituted by the positive electrode of the charging port 112, the positive electrode of the first port 141, the battery cell 150, the negative electrode of the first port 141, and the negative electrode of the charging port 112 charges the battery cell 150.

When power needs to be supplied to the power supply end 122, a loop formed by the positive electrode of the battery cell 150, the positive electrode of the second port 142, the negative electrode of the second port 142, and the positive electrode of the battery cell 150 may supply power to the power supply end 122.

When power needs to be supplied to the power supply terminal 122 while the battery cell 150 is being charged, a loop formed by the positive electrode of the charging port 112, the positive electrode and the negative electrode of the power supply terminal 122, and the negative electrode of the charging port 112 may directly supply power to the power supply terminal 122.

Referring to fig. 8, in an embodiment, in a direction perpendicular to the arrangement direction of the first end 110 and the second end 120, the positive electrode and the negative electrode of the first port 141 are respectively located at two opposite sides of the protection plate 140, the positive electrode and the negative electrode of the second port 142 are respectively located at two sides of the protection plate 140, the positive electrode of the first port 141 and the positive electrode of the second port 142 are located at the same side of the protection plate 140, the negative electrode of the first port 141 and the negative electrode of the second port 142 are located at the same side of the protection plate 140, and in the direction perpendicular to the arrangement direction of the first end 110 and the second end 120, the first branch 220 and the second branch 250 respectively extend along two opposite sides of the protection plate 140.

In this embodiment, the first circuit may be disposed between the inner wall of the casing 100 and the at least two battery cells 150, and the second branch 250 may be disposed between the inner wall of the casing 100 and the at least two battery cells 150. The mode can reduce the dense degree of the arrangement of the circuit, increase the heat dissipation area and improve the heat dissipation degree.

Referring to fig. 9, in an embodiment, in a direction perpendicular to the arrangement direction of the first end 110 and the second end 120, the positive electrode and the negative electrode of the first port 141 and the positive electrode and the negative electrode of the second port 142 are disposed on the same side of the protection plate 140, and the first branch 220 and the second branch 250 extend along a side of the casing 100 near the positive electrode and the negative electrode of the first port 141 and the positive electrode and the negative electrode of the second port 142.

When the second branch 250 and the first branch 220 are disposed on the same side of the two battery cells 150, that is, the second branch 250 and the first branch 220 are disposed on the left side or the right side of the casing 100 and located between the inner wall of the casing 100 and the two battery cells 150. This way, the space occupied by the second branch 250 and the first branch 220 can be reduced, the width of the housing 100 can be reduced, and the width of the electronic device 20 can be reduced.

Referring to fig. 11, in one embodiment, the electronic device 20 further includes a motherboard 260. The main board 260 is disposed on the housing 100. The main plate 260 is disposed closer to the second end 120 than the first end 110. The main board 260 is electrically connected to the power supply terminal 122. The main board 260 may serve as a control system of the electronic device 20. The motherboard 260 may be powered through the power supply terminal 122. Since the electronic device 20 has the structure of the battery pack 10, the electronic device 20 also has advantages of less heat generation and high charging efficiency during charging.

In one embodiment, the electronic device 20 can be mated through the adapter 300, and the adapter 300 is connected with the protection board 140 and the main board 260 through the charging port 112. The adapter 300 may be a power supply conversion device of a power supply device, and may have functions of voltage transformation and rectification. The current and voltage output by the adapter 300 can supply power to the battery cell 150 and the motherboard 260 through the charging port 112. The adapter 300 may also communicate with the motherboard 260 to directly power the electronic device 20 or to power the battery assembly 10 depending on the usage status of the electronic device 20.

The electronic device 20 may be any terminal device such as a mobile phone, a tablet computer, a PDAPersonal Digital Assistant, a personal Digital Assistant, a POSPoint of Sales, a Sales terminal, a vehicle-mounted computer, and a wearable device, or a mobile power supply, a charger, and a power pack.

Please refer to fig. 12, which illustrates an electronic device as a mobile phone. The handset construction is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

The handset may include a battery assembly 10, a processor 280, a memory 310, an audio circuit 320, a sensor 330, an input unit 340, an output unit 350, and the like.

The processor 280 may be disposed on the motherboard 260. Processor 280 may be powered by battery assembly 10. The processor 280 is a control center of the mobile phone, connects various parts of the entire mobile phone by using various interfaces and lines, and performs various functions of the mobile phone and processes data by operating or executing software programs and/or modules stored in the memory 1220 and calling data stored in the memory 1220, thereby performing overall monitoring of the mobile phone. In one embodiment, processor 280 may include one or more processing units. In one embodiment, processor 280 may integrate an application processor and a modem processor, wherein application processor 280 primarily handles operating systems, user interfaces, applications, and the like; the modem processor handles primarily wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 280.

The battery assembly 10 may be logically connected to the processor 280 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An electronic device comprising a battery assembly (10) and a housing (100), the battery assembly comprising:

the battery comprises battery cells (150), wherein one end of each battery cell (150) is provided with a tab (152), and the number of the battery cells (150) is at least two;

a protection plate (140) connected with the battery cell (150) through the tab (152) for providing protection for the battery cell (150); the protection plate (140) is provided with a first port (141) and a second port (142), and the electric core (150) is charged by the current input from the first port (141) through the protection plate (140), and the electric core (150) outputs the current through the second port (142);

wherein the at least two cells (150) are distributed on both sides of the protection plate (140), and the tab (152) of each cell (150) faces the protection plate (140);

the shell (100) comprises a first end (110) and a second end (120) which are opposite, the first end (110) is provided with a charging port (112), the charging port (112) is connected with the first port (141), and current input from the charging port (112) charges the battery cell (150) through the first port (141);

wherein the protection plate (140) is arranged between the first end (110) and the second end (120), and two sides of the protection plate (140) are respectively opposite to the first end (110) and the second end (120); at least one battery cell (150) is arranged between the first end (110) and the protective plate (140) and between the second end (120) and the protective plate (140);

a power supply end (122) of the electronic device (20) is arranged between the second end (120) and the battery assembly (10), the power supply end (122) is connected with the second port (142), and the battery core (150) outputs current to supply power to the power supply end (122) through the second port (142).

2. The electronic device of claim 1, wherein the at least two cells (150) are connected in series by the protective plate (140).

3. The electronic device according to claim 1, wherein one of the battery cells (150) is disposed on each of both sides of the protective plate (140), and the two battery cells (150) are connected in parallel.

4. The electronic device of claim 2, wherein the first port (141) is connected with the second port (142).

5. The electronic device of claim 4, further comprising:

a first branch (220), wherein one end of the first branch (220) is connected with the positive electrode of the charging port (112), and the other end of the first branch (220) is respectively connected with the positive electrode of the first port (141), the positive electrode of the second port (142) and the positive electrode of the power supply end;

and one end of the second branch (250) is connected with the negative electrode of the charging port (112), and the other end of the second branch (250) is respectively connected with the negative electrode of the first port (141), the negative electrode of the second port (142) and the negative electrode of the power supply terminal (122).

6. The electronic device of claim 5,

in a direction perpendicular to the arrangement direction of the first end (110) and the second end (120), the positive electrode and the negative electrode of the first port (141) are respectively located on two opposite sides of the protection plate (140), the positive electrode and the negative electrode of the second port (142) are respectively located on two sides of the protection plate (140), the positive electrode of the first port (141) and the positive electrode of the second port (142) are located on the same side of the protection plate (140), the negative electrode of the first port (141) and the negative electrode of the second port (142) are located on the same side of the protection plate (140), and the first branch (220) and the second branch (250) respectively extend along two opposite sides of the protection plate (140) in the direction perpendicular to the arrangement direction of the first end (110) and the second end (120).

7. The electronic device according to claim 5, wherein the positive and negative poles of the first port (141) and the positive and negative poles of the second port (142) are disposed on the same side of the protection plate (140) in a direction perpendicular to the arrangement direction of the first end (110) and the second end (120), and the first branch (220) and the second branch (250) extend along a side of the housing (100) near the positive and negative poles of the first port (141) and the second port (142).

8. The electronic device of claim 3, wherein the first port (141) is connected with the second port (142).

9. The electronic device of claim 8, further comprising:

10. The electronic device of claim 9,

in the direction perpendicular to the arrangement direction of the first end (110) and the second end (120), the positive electrode and the negative electrode of the first port (141) are respectively located on two opposite sides of the protection plate (140), the positive electrode and the negative electrode of the second port (142) are respectively located on two sides of the protection plate (140), the positive electrode of the first port (141) and the positive electrode of the second port (142) are located on the same side of the protection plate (140), the negative electrode of the first port (141) and the negative electrode of the second port (142) are located on the same side of the protection plate (140), and in the direction perpendicular to the arrangement direction of the first end (110) and the second end (120), the first branch (220) and the second branch (250) extend along two opposite sides of the protection plate (140) respectively.

11. The electronic device according to claim 9, wherein the positive and negative poles of the first port (141) and the positive and negative poles of the second port (142) are disposed on the same side of the protection plate (140) in a direction perpendicular to the arrangement direction of the first end (110) and the second end (120), and the first branch (220) and the second branch (250) extend along a side of the housing (100) near the positive and negative poles of the first port (141) and the second port (142).

12. The electronic device according to any of claims 1-11, further comprising a main board (260) disposed on the housing (100), and wherein the main board (260) is disposed proximate to the second end (120) relative to the first end (110), the main board (260) being connected to the power supply end (122).