CN220290945U

CN220290945U - High-energy power battery

Info

Publication number: CN220290945U
Application number: CN202321647845.0U
Authority: CN
Inventors: 陈阿文; 郑伟军; 黄娇华
Original assignee: Fujian Scud Power Technology Co Ltd
Current assignee: Fujian Scud Power Technology Co Ltd
Priority date: 2023-06-27
Filing date: 2023-06-27
Publication date: 2024-01-02
Anticipated expiration: 2033-06-27

Abstract

The utility model relates to a high-energy power battery, which comprises a battery cell group arranged in a closed accommodating cavity formed by an upper cover and a lower cover; the battery cell group comprises a plurality of cylindrical battery cells arranged in the battery cell bracket; the battery cell bracket is provided with a abdication groove matched with the side surface of the cylindrical battery cell for reducing the occupied space of the battery cell bracket; BMS plates are arranged on the sides of the battery cell support, and nickel plates are arranged at the ends of the BMS plates; the BMS board is electrically connected with an output interface component and a magnetic connector; one end of the magnetic connector penetrates through the battery core bracket and then is connected with the BMS board, and the other end of the magnetic connector penetrates through the lower cover and then forms a magnetic connection port. According to the utility model, the basic functions of the charger can be realized by arranging the output interface component and the magnetic connection port on the shell respectively, and the magnetic connection port can conveniently supply power for an electric appliance when the charger is used as a power battery, so that two purposes are realized. The battery cell support is provided with the abdication groove, so that the occupation of the space of the battery cell support can be reduced while the cylindrical battery cell is positioned, and the energy density of the whole battery cell module is improved.

Description

High-energy power battery

Technical Field

The utility model relates to the field of batteries, in particular to a high-energy power battery.

Background

The charging device and the power battery in the prior art are independent from each other, and cannot realize multiple purposes. The battery cell of the current market charger generally uses a polymer and 18650 battery cells, and the energy density ratio is low. The shell plays an important role in protecting the battery cell, but occupies a larger volume at the same time, and has adverse effects on the improvement of the overall energy density of the battery module. However, from the standpoint of maximum utilization of resources, there is also a need for a multipurpose power battery that can have a variety of usage scenarios, and that increases the energy density of the product as much as possible.

Disclosure of Invention

First, the technical problem to be solved

In order to solve the above problems of the prior art, the present utility model provides a high-energy power battery.

(II) technical scheme

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

a high energy power cell, characterized by: the battery cell group is arranged in a closed accommodating cavity formed by the upper cover and the lower cover; the battery cell group comprises a plurality of cylindrical battery cells arranged in the battery cell bracket; the battery cell support is provided with a abdication groove matched with the side surface of the cylindrical battery cell to reduce the occupied space of the battery cell support; BMS plates are arranged on the sides of the battery cell support, and nickel sheets are arranged at the ends of the BMS plates; the BMS board is electrically connected with an output interface component and a magnetic connector; the magnetic connector penetrates through the battery core support and then one end of the magnetic connector is connected with the BMS board, and the other end of the magnetic connector penetrates through the lower cover to form a magnetic connection port.

Further, a power button is arranged on the upper cover; and a tact switch matched with the power button is arranged below the power button on the BMS board.

Further, a plurality of lamp beads are arranged on the periphery of the tact switch; the lamp beads are provided with shading foam; a light hole allowing the lamp beads to transmit light is formed in the shading foam; the upper cover is provided with a light-transmitting plate matched with the light-transmitting hole.

Further, the output interface component penetrates through the lower cover; the lower cover is provided with a rubber plug for plugging the upper interface of the output interface component.

Further, the BMS plate is fixedly connected with the battery cell bracket through a fixing screw.

Further, the battery cell bracket comprises an upper bracket and a lower bracket; the upper bracket and the lower bracket are buckled with each other and then wrapped at two ends of the cylindrical battery cell; the upper bracket is fixedly connected with the lower bracket through fastening screws.

Further, a gasket is arranged between the nickel sheet and the lower shell.

Further, the magnetic connection port is positioned in the middle of the outer end face of the lower cover.

Further, the output interface component is positioned at the side of the lower cover; the output interface assembly includes a USB socket and a DC charging socket.

Further, the abdication groove is rectangular.

(III) beneficial effects

The beneficial effects of the utility model are as follows: 1. the output interface component and the magnetic connection port are respectively arranged on the shell, so that the basic function of the charger baby can be realized, and the magnetic connection port can conveniently supply power for an electric appliance when the charger baby is used as a power battery, so that two purposes are realized.

2. The adoption of the plurality of 21700 battery cells has higher capacity density ratio than the traditional 18650 battery cells, and the arrangement of the abdication groove on the battery cell support can reduce the occupation of the space of the battery cell support while positioning the cylindrical battery cells, so that the energy density of the whole battery cell module is improved.

3. The magnetic connection port and the output interface component are respectively positioned on two different sides of the cell module, so that mutual interference is avoided, and conditions are provided for dual purposes.

4. The magnetic connection port is located in the middle of the outer end face of the lower cover, so that the power supply stability of the magnetic connection port can be guaranteed by the aid of the self weight of the battery cell module, and meanwhile, the efficiency of the preset position can be improved when the battery cell module is used as a power battery.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an exploded view of the structure of the present utility model;

FIG. 2 is a perspective view of the structure of the present utility model;

FIG. 3 is an exploded view of a battery cell stack according to the present utility model;

reference numerals illustrate: 100. an upper cover; 110. a power button; 120. a light-transmitting plate; 200. a lower cover; 210. a magnetic connector; 211. a magnetic connection port; 220. a rubber plug; 300. a cell group; 310. an output interface assembly; 320. BMS board; 321. touching the switch; 322. shading foam; 323. a set screw; 324. a light hole; 330. a cylindrical cell; 340. an upper bracket; 350. a lower bracket; 351. a relief groove; 360. nickel flakes; 370. fastening a screw; 380. a liner.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In an embodiment, please refer to fig. 1-3:

the utility model provides a high-energy power battery, which consists of an upper cover 100, a battery cell group 300 and a lower cover 200; an output interface component 310 is arranged on the side of the battery cell group 300; the upper cover 100 and the lower cover 200 are mutually butted and arranged in the inner part of the upper cover and the lower cover to form a closed accommodating cavity, and the battery cell group 300 is arranged in the accommodating cavity; the output interface assembly 310 extends to the outside through the side of the lower cover 200, thereby forming an interface connected with the outside; the output interface component 310 specifically includes a USB socket and a DC charging socket; the upper cover 100 is provided with a power button 110, the power button 110 and the upper cover 100 are integrated by using snap fit, and the upper cover 100, the lower cover 200 and the power button 110 are mainly formed by injection molding plastic materials (PC, PA66+GF, PA66, PET) and the like; the battery cell group 300 comprises a plurality of cylindrical battery cells 330 arranged in a battery cell bracket; a plurality of cylindrical cells 330 arranged side by side; the battery cell bracket is provided with a yielding groove 351 matched with the side surface of the cylindrical battery cell 330, so as to reduce the space occupied by the battery cell bracket, on the one hand, the battery cell bracket is used for reducing the size in thickness/length, and on the other hand, the battery cell bracket is used for providing a yielding space for the BMS plate 320, so that the BMS plate 320 can be more closely spaced from the battery cell bracket, and the battery cell bracket is reduced in size in thickness;

as shown in fig. 3, the relief grooves 351 are disposed on two opposite sides of the cylindrical battery cell 330, and since the cylindrical battery cell 330 is disposed in a row, the battery cell bracket occupies less space in thickness by the structure of the relief grooves 351, so that the BMS board 320 can be closer to the battery cell bracket to reduce the volume; the relief groove 351 is rectangular at this time;

since the cell holder is generally a fully wrapped cylindrical cell 330, the wall thickness of the cell holder will affect the size of the final cell, and by providing the relief groove 351 at the side of the cylindrical cell 330, the effect of the wall thickness of the cell holder can be reduced, and the relief groove 351 can be provided larger, so that the side of the cylindrical cell 330 is fully exposed, thus the thickness of the cell set 300 is substantially equal to the diameter of the cylindrical cell 330, and the effect of the wall thickness of the cell holder on the thickness of the cell set 300 is reduced; further, more abdication grooves 351 can be formed on the cell support, so as to reduce the dimension of the cell module 300 in the length direction, for example, in fig. 3, an abdication groove 351 is formed on each of the left and right sides of the upper support 340 and the lower support 350, and the abdication groove 351 penetrates through the upper support 340 or the lower support 350 in length, so that the side of the cylindrical cell 330 can directly abut against the inner wall of the lower cover 200, i.e. the dimension of the cell module 300 in the length direction can be reduced, so that the energy density of the cell module can be effectively increased, and for ensuring safety, a gasket 380 can be directly formed on the inner walls of the cylindrical cell 330 and the lower cover 200; by arranging the abdication groove 351 on the cell support of the adjacent cylindrical cells 330, the adjacent cylindrical cells 330 can be in direct contact, the occupation of space is reduced, and the arrangement density is higher.

BMS plate 320 is arranged on the side face of the battery cell bracket, and nickel sheet 360 is arranged on the end part; the BMS board 320 uses epoxy board material FR-4 and the like, and copper foil and various components are arranged on the board material, so that the normal operation of the battery management system is realized; the BMS board 320 is electrically connected with the output interface assembly 310 and the magnetic connector 210, so as to realize different output modes, and the preferred output interface assembly 310 and the magnetic connector 210 are located on different sides of the BMS board 320, so as to reduce interference during connection.

In one embodiment of the present utility model, the cylindrical cells 330 are 21700 cells, and 6 cells are arranged side by side.

In an embodiment of the present utility model, the BMS board 320 is provided with a tact switch 321 under the power button 110; the tact switch 321 is used for controlling the switch of current output and the display of the LED lamp; the tact switch 321 is circumferentially provided with a plurality of lamp beads (not shown in the figure); the lamp beads are LED lamps; the lamp beads are provided with shading foam 322; the light shielding foam 322 is provided with a light hole 324 for allowing the lamp beads to transmit light; the shading foam 322 uses a black pad 380 material, and has the main functions of strictly shading the luminescence of different lamp beads and avoiding light cross; the upper cover 100 is provided with a light-transmitting plate 120 matched with the light-transmitting holes 324.

In one embodiment of the present utility model, the BMS plate 320 is fixedly coupled to the cell holder by a fixing screw 323.

In one embodiment of the present utility model, the output interface assembly 310 is located laterally of the lower cover 200; the output interface assembly 310 includes a USB socket and a DC charging socket; the USB socket can be connected with intelligent household appliances such as a mobile phone battery, an outdoor lamp and the like to charge the intelligent household appliances; the main function of the DC charging socket is to obtain power supply energy from the outside, and store and reuse the energy when the battery is dead. The output interface assembly 310 is connected to the BMS board 320 on the battery pack 300 through a wire harness, and outputs can be managed through the BMS.

In an embodiment of the utility model, the magnetic connection port 211 is located in the middle of the outer end surface of the lower cover 200, the magnetic connection port 211 has magnetic attraction, and is combined with an external electric vehicle and an external electric scooter connector male seat through magnetic attraction to form an output circuit, so that energy is output from the battery cell set 300 to the external electric vehicle and the external electric scooter.

In one embodiment of the present utility model, the output interface assembly 310 is disposed through the lower cover 200; the lower cover 200 is provided with a rubber plug 220 for plugging the upper interface of the output interface assembly 310, and the rubber plug 220 is made of soft rubber materials such as silica gel, TPU and the like, and has the main functions of plugging the opening of the USB checking and DC charging socket and avoiding external water vapor and dust from entering.

In an embodiment of the present utility model, a gasket 380 is disposed between the nickel sheet 360 and the lower case, and the nickel sheet 360 is used as an electrical connection material, mainly to string 21700 cells into a closed circuit loop, and connect the current and the BMS board 320 together, so as to promote man-machine interaction. The gasket 380 has the main function of insulating the battery cell 300 from the outside, avoiding short circuit and improving the safety of the battery.

In an embodiment of the present utility model, the cell holder includes an upper holder 340 and a lower holder 350; the upper bracket 340 and the lower bracket 350 are buckled with each other and then wrapped at two ends of the cylindrical battery cell 330; the upper bracket 340 is fixedly connected with the lower bracket 350 through fastening screws 370. The upper bracket 340 and the lower bracket 350 are provided with a yielding groove 351. The upper bracket 340 and the lower bracket 350 are made of plastic materials (PC, PA66+ GF, PA66, PET) and the like, and are important components of the battery cell assembly 300. The cell support is made of fireproof flame-retardant materials resistant to high temperature of 140 ℃ or higher, and mainly aims to fix the cell, the BMS plate 320 and the whole battery pack.

In one embodiment of the utility model, the battery pack can also be used for automated production. The automation implementation of the battery pack comprises: 1. a plurality of cylindrical batteries can be automatically placed into the fixing round holes of the upper bracket 340 and the lower bracket 350. 2. And locking the battery cell and the bracket by using a tapping screw. 3. After the nickel sheet 360 is automatically positioned at the fixed slot of the bracket, the nickel sheet is fixed by automatic laser welding. 4. The nickel tab 360 taps and the BMS board 320 are fixed using an automatic soldering connection. 5. The output interface assembly 310 is attached to the support using an automatic screw lock, and is matched with the BMS board 320 using a connection pin header, thereby realizing current and signal transmission.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.

Claims

1. A high energy power cell, characterized by: the battery cell group (300) is arranged in a closed accommodating cavity formed by the upper cover (100) and the lower cover (200); the battery cell group (300) comprises a plurality of cylindrical battery cells (330) arranged in a battery cell bracket; the battery cell bracket is provided with a yielding groove (351) which is matched with the side surface of the cylindrical battery cell (330) and used for reducing the occupied space of the battery cell bracket; BMS plates (320) are arranged on the sides of the battery cell support, and nickel sheets (360) are arranged at the ends of the BMS plates; the BMS board (320) is electrically connected with an output interface component (310) and a magnetic connector (210); the magnetic connector (210) penetrates through the rear end of the battery cell bracket to be connected with the BMS board (320), and the other end of the magnetic connector penetrates through the lower cover (200) to form a magnetic connection port (211).

2. A high energy power cell as defined in claim 1, wherein: a power key (110) is arranged on the upper cover (100); the BMS board (320) is provided with a tact switch (321) which is matched with the power button (110) and is positioned below the power button.

3. A high energy power cell as defined in claim 2, wherein: the light touch switch (321) is circumferentially provided with a plurality of lamp beads; the outside of the lamp bead is provided with shading foam (322); a light hole (324) allowing the lamp beads to transmit light is formed in the shading foam (322); the upper cover (100) is provided with a light-transmitting plate (120) matched with the light-transmitting holes (324).

4. A high energy power cell as defined in claim 1, wherein: the output interface component (310) is arranged through the lower cover (200); the lower cover (200) is provided with a rubber plug (220) for plugging an upper interface of the output interface assembly (310).

5. A high energy power cell as defined in claim 1, wherein: the BMS board (320) is fixedly connected with the cell support through a fixing screw (323).

6. A high energy power cell as claimed in claim 1 or 5, wherein: the battery cell bracket comprises an upper bracket (340) and a lower bracket (350); the upper bracket (340) and the lower bracket (350) are buckled with each other and then are wrapped at two ends of the cylindrical battery cell (330); the upper bracket (340) is fixedly connected with the lower bracket (350) through a fastening screw (370).

7. A high energy power cell as defined in claim 1, wherein: a gasket (380) is arranged between the nickel sheet (360) and the lower shell.

8. A high energy power cell as defined in claim 1, wherein: the magnetic connection port (211) is positioned in the middle of the outer end face of the lower cover (200).

9. A high energy power cell as defined in claim 1, wherein: the output interface component (310) is positioned at the side of the lower cover (200); the output interface assembly (310) includes a USB socket and a DC charging socket.

10. A high energy power cell as defined in claim 1, wherein: the yielding groove (351) is rectangular.