CN214411426U - Battery module and portable power source - Google Patents

Abstract

The application discloses battery module and portable power source relates to portable power source technical field. The battery module comprises a battery pack, a bracket assembly and a plurality of groups of connecting piece assemblies; the battery pack is fixedly arranged in the bracket component; the plurality of groups of connecting piece assemblies are arranged on two opposite outer side walls in the bracket assembly, and the plurality of groups of connecting piece assemblies are electrically connected with the battery pack; and positioning grooves are formed in the two outer side walls of the support component and used for positioning the connecting piece components, and the positioning grooves and the connecting piece components are arranged in a one-to-one correspondence manner. The application provides battery module can realize the location installation of connecting piece subassembly and bracket component, and then realizes the accurate counterpoint installation of connecting piece subassembly and group battery.

Description

Battery module and portable power source

Technical Field

The application relates to the technical field of mobile power supplies, in particular to a battery module and a mobile power supply.

Background

In daily life, people can charge electronic equipment such as mobile phones and tablet computers by means of the mobile power supply. However, when the existing mobile power supply is assembled, the problem that the conducting strips are not easy to align and install exists, and then the conducting strips and the battery core are easily connected in a staggered manner, so that the conducting strips and the battery core are not stable in connection, and the quality of the mobile power supply is influenced.

SUMMERY OF THE UTILITY MODEL

The application provides a battery module and portable power source to in the installation of counterpointing of realization connection piece subassembly and bracket component.

In order to solve the above problems, the present application provides:

a battery module comprises a battery pack, a bracket component and a plurality of groups of connecting piece components, wherein the battery pack is fixedly arranged in the bracket component;

the plurality of groups of connecting piece assemblies are arranged on two opposite outer side walls in the bracket assembly, and the plurality of groups of connecting piece assemblies are electrically connected with the battery pack;

and positioning grooves are formed in the two outer side walls of the support component and used for positioning the connecting piece components, and the positioning grooves and the connecting piece components are arranged in a one-to-one correspondence manner.

In some possible embodiments, the bracket assembly includes a first bracket and a second bracket which are separately arranged; the second support is detachably connected to the first support, and an accommodating cavity for accommodating the battery pack is formed between the first support and the second support.

In some possible embodiments, a plurality of first fixing grooves are formed in one side of the first bracket, which is close to the accommodating cavity, and a plurality of second fixing grooves are formed in one side of the second bracket, which is close to the accommodating cavity, and the second fixing grooves are arranged in one-to-one correspondence with the first fixing grooves;

the first fixing grooves are matched with the corresponding second fixing grooves to fix the single battery in the battery pack.

In some possible embodiments, a first connecting column is further disposed on one side of the first bracket close to the accommodating cavity, a second connecting column is disposed on one side of the second bracket close to the accommodating cavity, and the first connecting column is detachably connected with the second connecting column.

In some possible embodiments, the bracket assembly is provided with a heat dissipation hole for communicating the inside of the bracket assembly with the outside.

In some possible embodiments, the plurality of sets of connector piece assemblies includes at least a first connector piece assembly and a second connector piece assembly;

the first and second connecting tab assemblies are used to connect the battery pack.

In some possible embodiments, each of the first and second connection pad assemblies includes an insulation pad, a red copper pad, and a nickel pad sequentially stacked; the nickel sheet is electrically connected with the red copper sheet and the battery pack respectively.

In some possible embodiments, a plurality of elastic connecting parts are arranged on the nickel sheet in a protruding manner, and the elastic connecting parts are arranged in a protruding manner in a direction away from the red copper sheet, and the elastic connecting parts are electrically connected with the batteries in the battery pack; and the red copper sheet is provided with an avoiding hole corresponding to the elastic connecting part.

In some possible embodiments, the plurality of sets of tab assemblies further includes a third tab assembly, a fourth tab assembly, and a fifth tab assembly;

the third connecting plate assembly, the fourth connecting plate assembly and the fifth connecting plate assembly all comprise insulating sheets and nickel sheets which are stacked, and the nickel sheets are connected with the battery pack.

In addition, this application still provides a portable power source, includes the battery module.

The beneficial effect of this application is: the application provides a battery module and portable power source, portable power source includes this battery module. The battery module comprises a battery pack, a support assembly and a plurality of groups of connecting piece assemblies, wherein the battery pack is fixedly arranged in the support assembly. The plurality of groups of connecting sheet assemblies are arranged on two opposite outer side walls in the support assembly. The two outer side walls of the bracket component are respectively provided with a positioning groove, the positioning grooves and the connecting piece components are arranged in a one-to-one correspondence mode, and the positioning grooves can be used for positioning the connecting piece components.

Therefore, when the battery pack is installed, the connecting sheet assembly can be positioned and installed through the positioning groove, namely the positioning installation between the connecting sheet assembly and the support assembly is realized, and the battery pack is fixedly arranged inside the support assembly, so that the corresponding alignment installation between the connecting sheet assembly and the battery pack can also be realized. Therefore, the connecting piece assembly and the battery pack are not easy to misplace, the connection stability is improved, and the quality of the battery module is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 shows a perspective view of a battery module;

fig. 2 is a schematic view illustrating an exploded structure of a battery module;

FIG. 3 shows an exploded view of the bracket assembly;

FIG. 4 shows a cross-sectional structural view of the bracket assembly;

FIG. 5 is a partially enlarged schematic view of portion A of FIG. 4;

fig. 6 is a schematic view showing an internal structure of the first bracket;

FIG. 7 is a partially enlarged schematic view of a portion B of FIG. 6;

FIG. 8 shows a perspective view of a first bracket;

FIG. 9 shows a schematic view of a plurality of sets of connector piece assemblies;

FIG. 10 shows a schematic structural view of a first connector tab assembly;

fig. 11 is a partially enlarged schematic view of a portion C of fig. 10;

FIG. 12 is a schematic view showing the structure of the elastic connection part in a fitting relationship with the battery;

fig. 13 shows a schematic structural diagram of a red copper sheet.

Description of the main element symbols:

10-a battery pack; 11-a battery; 20-a bracket assembly; 201-heat dissipation holes; 21-a first scaffold; 210-a first fixation slot; 211-positioning grooves; 212-a via; 213-first marker portion; 214-a first gap; 215-a support plate; 216-support column; 217-a guide groove; 218-a first connecting post; 2181-first support surface; 2182-flange; 2183-a slot for insertion; 2184-through groove; 219-a reinforcing column; 2191-a second support surface; 22-a second support; 220-a second fixation slot; 221-a second notch; 222-a third connecting column; 223-a second marker portion; 224-a second connecting column; 2241-a guide post; 2242-connecting hole;

30-a connector piece assembly; 31-a first connector tab assembly; 31 a-a locating hole; 311-nickel plate; 3111-an elastic connection; 3112-third notch; 3111 a-a solder bath; 3113-a second engaging lug; 312-red copper sheet; 3121-first connecting ear; 3122-avoidance holes; 313-an insulating sheet; 314-solder joint;

32-a second connector piece assembly; 33-a third connector piece assembly; 34-a fourth wafer assembly; 35-a fifth connector piece assembly;

40-connecting piece.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Embodiments provide a battery module, which may be used in a mobile power source to provide electric energy storage and supply.

As shown in fig. 1 and 2, the battery module includes a battery pack 10, a bracket assembly 20, and several sets of tab assemblies 30. The battery pack 10 may include a plurality of batteries 11 for storing electric energy. In this embodiment, the battery 11 is a cylindrical battery.

In other embodiments, the battery 11 may be a prismatic battery or the like.

In the embodiment, the inside of the bracket assembly 20 is provided with a receiving cavity for receiving the battery pack 10. Specifically, the battery pack 10 may be fixedly mounted in a receiving cavity in the bracket assembly 20. On one hand, the bracket assembly 20 can fix the battery pack 10, so that the plurality of batteries 11 in the battery pack 10 form a whole, the batteries 11 in the battery pack 10 are kept relatively fixed, the batteries 11 are prevented from shaking randomly to cause extrusion deformation, and the batteries 11 can be prevented from being damaged due to deformation. On the other hand, the bracket assembly 20 can also correspondingly protect the battery pack 10 from external objects directly touching the battery 11 and damaging the battery 11.

The plurality of sets of connecting tab assemblies 30 are respectively disposed on two opposite outer sidewalls of the bracket assembly 20, and the plurality of sets of connecting tab assemblies 30 are disposed corresponding to electrode posts of the cells 11 of the battery pack 10, so that the connecting tab assemblies 30 are electrically connected to the battery pack 10.

In an embodiment, the two outer sidewalls of the rack assembly 20 are provided with a plurality of positioning grooves 211 for positioning and connecting a plurality of sets of connecting plate assemblies 30, and the plurality of positioning grooves 211 are arranged in one-to-one correspondence with the plurality of sets of connecting plate assemblies 30. It is understood that a plurality of positioning slots 211 are disposed on the side of the rack assembly 20 away from the receiving cavity. It is understood that a plurality of positioning slots 211 can be separately disposed on the two outer sidewalls of the rack assembly 20, i.e., a certain number of positioning slots 211 are disposed on the two outer sidewalls.

When the installation, constant head tank 211 can fix a position connection piece subassembly 30 to can make things convenient for the operator to be connected connection piece subassembly 30 and group battery 10 counterpoint, can effectively avoid connection piece subassembly 30 to take place the dislocation for group battery 10, ensure the installation of the accurate counterpoint of connection piece subassembly 30 and group battery 10 promptly, improve battery module installation quality.

Further, as shown in fig. 1 to 4, in some specific embodiments, the bracket assembly 20 includes a first bracket 21 and a second bracket 22, and each of the first bracket 21 and the second bracket 22 may have a frame structure with one side opened. The second bracket 22 covers the first bracket 21, and simultaneously, the side wall end surface of the second bracket 22 abuts against the side wall end surface of the first bracket 21, and the second bracket 22 can be fixedly connected with the first bracket 21. Wherein, the opening of the first bracket 21 is opposite to the opening of the second bracket 22, so that a containing cavity is formed between the first bracket 21 and the second bracket 22. In an embodiment, after the second bracket 22 is covered on the first bracket 21, the bracket assembly 20 may have a rectangular parallelepiped shape, and correspondingly, the accommodating cavity in the bracket assembly 20 may also have a substantially rectangular parallelepiped shape.

Of course, in other embodiments, the bracket assembly 20 may also take on a cylindrical, cubic, or other shape.

In an embodiment, the receiving cavity may be used for installing the battery pack 10, and the size of the receiving cavity may be set according to needs. For example, the size of the accommodating cavity may be set according to the number of the batteries 11 provided in the battery pack 10 and the volume of the batteries 11. When the battery pack 10 is mounted in the receiving cavity, one electrode column of the battery 11 is disposed toward the first support 21, and correspondingly, the other electrode column of the battery 11 is disposed toward the second support 22.

In the embodiment, the first bracket 21 and the second bracket 22 are separate structures, which can facilitate the installation of the battery pack 10 on one hand, and can also avoid the accommodating cavity from being in a completely sealed state on the other hand, so as to facilitate the dissipation of heat of the battery pack 10.

Further, a first notch 214 is disposed on a circumferential side wall of the first bracket 21, and the first notch 214 is communicated with the opening of the first bracket 21. Similarly, a second notch 221 is also provided in the circumferential side wall of the second bracket 22, and the second notch 221 is provided to communicate with the opening of the second bracket 22. When the second bracket 22 covers the first bracket 21, the first notch 214 and the second notch 221 are correspondingly communicated, so as to form the heat dissipation hole 201 communicating the accommodating cavity with the external environment. Wherein, the setting of louvre 201 can accelerate the air flow in the holding chamber, accelerates the air flow of the environment that group battery 10 is located promptly to the outside air carries out the heat exchange with group battery 10 in the holding chamber, dispels the heat to group battery 10, and then avoids influencing battery module's normal use and life. Meanwhile, the occurrence of safety accidents such as fire caused by overhigh temperature of the battery module can be effectively avoided.

In an embodiment, the four circumferential side walls of the first bracket 21 may be provided with first notches 214, correspondingly, the four circumferential side walls of the second bracket 22 may also be provided with second notches 221, and the first notches 214 and the second notches 221 are arranged in a one-to-one correspondence manner, so that four heat dissipation holes 201 may be formed in the circumferential direction of the battery module, and are used for dissipating heat of the battery pack 10.

In other embodiments, the first notch 214 and the second notch 221 may be disposed in a staggered manner to form the heat dissipation hole 201 communicating the accommodating cavity with the outside, respectively, for heat dissipation of the battery pack 10. In an embodiment, the number of the heat dissipation holes 201 is not particularly limited herein, and for example, the heat dissipation holes 201 may be provided with one, two, three, five, seven, eight, and the like.

As shown in fig. 4, a first connecting column 218 is disposed on a side of the first bracket 21 near the inside of the accommodating cavity. Correspondingly, a second connecting column 224 is arranged on one side of the second bracket 22 close to the inner part of the accommodating cavity. The second connecting column 224 is fixedly connected to the first connecting column 218, thereby fixedly connecting the first bracket 21 and the second bracket 22.

In an embodiment, the number of the first connecting posts 218 and the second connecting posts 224 is equal, and both can be arranged according to the requirement, and is not limited in particular. Illustratively, the first connecting post 218 and the second connecting post 224 can each be provided in two, three, four, six, nine, etc. numbers. In this embodiment, six first connection columns 218 and six second connection columns 224 are provided, and six first connection columns 218 are uniformly disposed in the first bracket 21, six second connection columns 224 are uniformly disposed in the second bracket 22, and the second connection columns 224 and the first connection columns 218 correspond to each other one by one. Thereby making the connection of the parts of the rack assembly 20 stable and reliable and also ensuring that the battery pack 10 is stably mounted in the rack assembly 20. Meanwhile, the first connecting post 218 and the second connecting post 224 are both disposed inside the accommodating cavity.

In an embodiment, the first connecting post 218 and the second connecting post 224 are disposed inside the bracket assembly 20, so that the overall structure of the battery module is more compact, the appearance of the battery module is more concise, and the appearance effect is improved.

In some embodiments, the first connecting post 218 and the second connecting post 224 can be fixedly connected by the connecting member 40.

As shown in fig. 4 and 5, a through slot 2184 is disposed inside the first connecting post 218 to communicate the accommodating cavity with the outside. The inner wall of the through slot 2184 near one end of the second connecting column 224 is provided with a flange 2182, and the flange 2182 is protruded from the inner wall of the through slot 2184 to a direction near the axis of the through slot 2184. Meanwhile, the flange 2182 is provided with a slot 2183 cut at one end of the through slot 2184 close to the second connecting post 224, that is, the slot 2183 is located at one side of the flange 2182 close to the second connecting post 224.

The inside of the second connecting column 224 may also be provided with a through groove structure for communicating the accommodating cavity with the outside. A connecting hole 2242 is formed at one end of the second connecting column 224 close to the first connecting column 218, and the connecting hole 2242 is communicated with the inside of the accommodating cavity. Meanwhile, one end of the second connecting column 224 close to the first connecting column 218 is also provided with a guide column 2241, and the connecting hole 2242 passes through the guide column 2241. The outer diameter of the guide post 2241 is smaller than the outer diameter of the second coupling post 224 itself so that a step surface may be formed between the guide post 2241 and the outer sidewall of the second coupling post 224. The outer diameter of the guide post 2241 may be equal to or slightly smaller than the inner diameter of the insertion slot 2183, while the outer diameter of the guide post 2241 is larger than the inner diameter of the flange 2182.

When the first bracket 21 and the second bracket 22 are assembled, the guide column 2241 is inserted into the insertion groove 2183 and abuts on the flange 2182. Thus, a preliminary positioning installation between the first connecting column 218 and the second connecting column 224 can be realized, and then the connecting member 40 can be connected to the first connecting column 218 and the second connecting column 224 to realize a fixed installation of the first bracket 21 and the second bracket 22. When the connector 40 is installed, the connector can be inserted from the end of the through slot 2184 far away from the accommodating cavity.

In some embodiments, the attachment member 40 may be self-tapping. The connecting member 40 can be respectively connected with the inner wall of the flange 2182 and the inner wall of the connecting hole 2242 in a screw-fit manner, and the nut of the connecting member 40 can be abutted against one side of the flange 2182 far away from the second connecting column 224, thereby realizing the fixed connection between the first connecting column 218 and the second connecting column 224.

In other embodiments, the connecting member 40 may be a bolt or the like with an external thread. Correspondingly, the inner wall of the flange 2182 and the inner wall of the connecting hole 2242 are provided with inner threads which are matched with the connecting piece 40. The connector 40 may be directly threaded between the first connector post 218 and the second connector post 224.

In other embodiments, the flange 2182 can be smoothly contacted with the connecting member 40, i.e., the connecting member 40 is directly connected to the second connecting post 224 after passing through the flange 2182. It will be appreciated that the end of the connector 40 remote from the second connecting post 224 is provided with a corresponding nut or the like to captively abut the flange 2182, thereby captively connecting the end of the connector 40 in the first connecting post 218.

Further, as shown in fig. 6 and 7, a plurality of first fixing grooves 210 are arranged inside one side of the first bracket 21 close to the accommodating cavity, and the first fixing grooves 210 can be used for fixedly mounting one end of the battery 11, so that the battery 11 is prevented from randomly shaking in the accommodating cavity, and the battery 11 can be prevented from being deformed and damaged due to collision or extrusion. In an embodiment, the plurality of first fixing grooves 210 may be divided in the first frame 21 by a plurality of partition plates, and the plurality of partition plates may be fixedly disposed inside the first frame 21. The number of the first fixing grooves 210 may correspond to the number of the batteries 11 in the battery pack 10, and the first fixing grooves 210 are provided in one-to-one correspondence with the batteries 11.

In some embodiments, the cross-section of the first fixing groove 210 may be substantially in a positive direction, and the diameter of the inscribed circle of the first fixing groove 210 is equal to the diameter of the battery 11. Thus, when the battery 11 is mounted, one end of the battery 11 is fixedly mounted in the first fixing groove 210 without pressing the battery 11.

In other embodiments, the cross-section of the first fixing groove 210 may be further provided in a polygonal shape such as a rectangle, a pentagon, a hexagon, etc.

Further, in some embodiments, the plurality of first fixing grooves 210 may be disposed in an orthogonal array in the first frame 21, and adjacent to each other, thereby presenting an ordered arrangement. Accordingly, the plurality of cells 11 in the battery pack 10 may also be arranged in an orderly manner.

In other embodiments, the arrangement of the first fixing slots 210 may also be adjusted as needed, and for example, the plurality of first fixing slots 210 may also be distributed at intervals, in a disordered manner, and the like.

Correspondingly, a plurality of second fixing grooves 220 are formed in the inner portion of one side of the second bracket 22 close to the accommodating cavity, and the second fixing grooves 220 and the first fixing grooves 210 are arranged in a one-to-one correspondence manner. The second fixing groove 220 may be used to fixedly mount an end of the battery 11 away from the first fixing groove 210. Therefore, under the matching action of the first fixing groove 210 and the second fixing groove 220, two ends of the battery 11 can be fixed, and the battery 11 is prevented from shaking randomly relative to the bracket assembly 20, so that the battery 11 is effectively protected. In the embodiment, the second fixing groove 220 is configured in the same manner and structure as the first fixing groove 210, and is not described herein again.

Further, in the first bracket 21, a reinforcing column 219 is disposed at an intersection of four adjacent first fixing grooves 210, which may be used to reinforce the structural strength of the partition at the corresponding position, and accordingly, the structural strength of the first bracket 21 may also be reinforced.

In an embodiment, the first connecting column 218 may also be disposed at the intersection of the adjacent four first fixing slots 210, and may be used as the reinforcing column 219 at this position. Accordingly, the coupling strength of the separators at the corresponding positions can be enhanced. It will be appreciated that the stiffening columns 219 are disposed to avoid the first connecting columns 218.

As shown in fig. 7, an arc-shaped first supporting surface 2181 is disposed on a side wall of the first connecting post 218 at a position where the first connecting post 218 is close to an inner side of the first fixing groove 210. The first supporting surface 2181 can be attached to the sidewall of the battery 11 at the corresponding position, so that the battery 11 at the corresponding position can be further supported and limited by the first supporting surface 2181.

An arc-shaped second support surface 2191 is provided on the sidewall of the reinforcing column 219 at a position where the reinforcing column 219 is adjacent to the inside of the first fixing groove 210. The second support surface 2191 may be attached to the side wall of the battery 11 at the corresponding position, so that the battery 11 at the corresponding position may be further supported and limited by the second support surface 2191.

Therefore, in the circumferential direction of the same battery 11, the battery can be supported and limited by a plurality of supporting surfaces, so that the mounting stability of the battery 11 is enhanced, and the battery 11 is prevented from shaking.

Similarly, a plurality of reinforcing columns 219 are disposed in the second bracket 22 and distributed at the intersection of four adjacent second fixing slots 220, so as to enhance the structural strength of the second bracket 22. The second connecting column 224 may also be correspondingly disposed at the intersection of the adjacent four second fixing slots 220. Meanwhile, the other end of the battery 11 can be supported and fixed by the second connecting column 224 and the reinforcing column 219, so that the mounting stability of the battery 11 is enhanced. It will be appreciated that the side wall of the second connecting post 224 is also provided with an arcuate support surface for supporting the battery 11.

As shown in fig. 6 and 8, a plurality of through holes 212 are disposed on a side wall of the first bracket 21 away from the second bracket 22, and the through holes 212 communicate the accommodating cavity with the external environment. In an embodiment, the number of the through holes 212 is equal to the number of the first fixing slots 210, and the through holes 212 are disposed in one-to-one correspondence with the first fixing slots 210. The through-holes 212 are disposed to correspond to electrode posts of the battery 11 when mounted. The connecting tab assembly 30 located outside the receiving cavity may be connected to the battery 11 inside the receiving cavity through the through hole 212.

Similarly, a plurality of through holes 212 may be formed on a side wall of the second bracket 22 away from the first bracket 21. The plurality of through holes 212 are arranged on the second bracket 22 in the same way as the first bracket 21, so that the connecting sheet assembly 30 located outside the accommodating cavity can be connected with the corresponding battery 11 through the through hole 212 at the corresponding position.

Further, as shown in fig. 8, a side wall of the first bracket 21 away from the second bracket 22 is provided with a number of positioning slots 211 for positioning the connecting piece assembly 30. It can be understood that a positioning groove 211 can be used to position a connecting plate assembly 30, and the shape of the positioning groove 211 can be consistent with the shape of the corresponding connecting plate assembly 30, i.e. the side wall of the connecting plate assembly 30 can be attached to the side wall of the corresponding positioning groove 211, so that the positioning groove 211 can position the connecting plate assembly 30.

In an embodiment, the first bracket 21 may be provided with one, two, three, five, six, and the like positioning slots 211, which may be specifically provided according to needs, and is not limited herein. In this embodiment, the side of the first bracket 21 away from the second bracket 22 is provided with three positioning grooves 211, and accordingly, three sets of connecting plate assemblies 30 can be positioned and installed.

Similarly, a side wall of the second bracket 22 away from the first bracket 21 is also provided with a number of positioning slots 211 for positioning the corresponding connecting piece assembly 30. The second bracket 22 may be provided with one, two, three, five, six, etc. positioning grooves 211, which may be specifically provided as required, and is not limited herein. In this embodiment, two positioning grooves 211 are formed on a side of the second bracket 22 away from the first bracket 21, and accordingly, three sets of connecting plate assemblies 30 can be positioned and installed. In an embodiment, the depth of the positioning groove 211 may be equal to or greater than the thickness of the connecting piece assembly 30. Preferably, the depth of the positioning groove 211 is equal to the thickness of the tab assembly 30.

It is understood that the through hole 212 for communicating the accommodating cavity with the external environment may be disposed in communication with the positioning groove 211 at a corresponding position.

As shown in fig. 1 and 9, the battery module may include several groups of the tab members 30, and the tab members 30 may be provided in numbers of two, three, four, five, six, eight, etc., by way of example. It is understood that the web assembly 30 is provided in at least two sets. The tab assembly 30 may be used to electrically connect the battery pack 10 and peripheral devices, and may realize input or output of electric energy of the battery module. In an embodiment, several sets of tab assemblies 30 can be used to connect the cells of the battery pack 10 in series or in parallel.

In this embodiment, the battery module includes five sets of the tab assembly 30, i.e., a first tab assembly 31, a second tab assembly 32, a third tab assembly 33, a fourth tab assembly 34, and a fifth tab assembly 35. The first connecting sheet assembly 31, the second connecting sheet assembly 32 and the third connecting sheet assembly 33 are located on the same side of the bracket assembly 20, and are laid flat. In some embodiments, the first connecting piece assembly 31, the second connecting piece assembly 32 and the third connecting piece assembly 33 are correspondingly disposed in the positioning groove 211 of the first frame 21. The third tab assembly 33 is disposed between the first tab assembly 31 and the second tab assembly 32.

The fourth and fifth connector member 34, 35 are located on the other side of the bracket assembly 20 and are arranged in a flat arrangement. In some embodiments, the fourth tab assembly 34 and the fifth tab assembly 35 are disposed in one-to-one correspondence in the positioning slot 211 of the second frame 22.

In an embodiment, the ends of the first connecting column 218 and the second connecting column 224, which are far away from the accommodating cavity, are both protruded from the outer sidewall of the bracket assembly 20, and correspondingly, the connecting sheet assembly 30 at the corresponding position is provided with a positioning hole 31a, which can be connected with the first connecting column 218 or the second connecting column 224 in a positioning manner, so as to further realize positioning and installation between the connecting sheet assembly 30 and the bracket assembly 20.

The first, second, third, fourth and fifth connecting tab assemblies 31, 32, 33, 34 and 35 may be used to electrically connect the cells 11 at corresponding positions in the battery pack 10 to achieve series/parallel connection between the cells 11 in the battery pack 10. Meanwhile, the first connecting piece assembly 31, the second connecting piece assembly 32, the third connecting piece assembly 33, the fourth connecting piece assembly 34 and the fifth connecting piece assembly 35 may also be used to electrically connect peripheral devices, for example, to electrically connect corresponding current/voltage detecting devices, a main board of the mobile power supply, and the like.

As shown in fig. 10 and 11, in some specific embodiments, the first connection tab assembly 31 includes a nickel-formable tab 311, a red copper tab 312, and an insulation tab 313.

Among them, the nickel tab 311 is used to connect some of the cells 11 in the battery pack 10, thereby achieving the electrical connection between the first connection tab assembly 31 and the battery pack 10. In use, the nickel tab 311 may be connected to the corresponding battery 11 by welding, so as to stably electrically connect the nickel tab 311 to the battery 11 and prevent the nickel tab 311 from being disconnected from the battery 11. In an embodiment, the nickel plate 311 may be attached to the bottom of the groove corresponding to the positioning groove 211.

As shown in fig. 10 and 12, in some specific embodiments, a plurality of elastic connection portions 3111 are provided on the nickel plate 311 for electrically connecting the corresponding battery 11. It is understood that a plurality of elastic connection portions 3111 may be disposed in one-to-one correspondence with the through holes 212 at the positions of the positioning grooves 211, and accordingly, the elastic connection portions 3111 may be disposed in one-to-one correspondence with the batteries 11 in the region. Thereby, the electrical connection between the first connection tab assembly 31 and the partial cells 11 of the battery pack 10 can be achieved.

The elastic connection portion 3111 is disposed to protrude from the plane where the nickel plate 311 is located, and the elastic connection portion 3111 is disposed to protrude toward the inside of the bracket assembly 20 relative to the nickel plate 311. The elastic connection portion 3111 can enter the receiving cavity inside the bracket assembly 20 through the through hole 212 at the corresponding position, and contact the battery 11 at the corresponding position. In one embodiment, the elastic connection portion 3111 may have a planar structure to be attached to the electrode posts of the battery 11, so as to achieve a larger area of contact.

Further, the elastic connection portion 3111 is further provided with a welding groove 3111a, and the welding groove 3111a communicates with both sides of the elastic connection portion 3111. The connection between the elastic connection portion 3111 and the electrode posts of the battery 11 may be achieved by welding. Specifically, welding may be performed between the elastic connection portion 3111 and the battery 11 at the position of the welding groove 3111 a. In the embodiment, the welding groove 3111a may be a long-strip through groove, or may be a through hole structure having a shape of a circle, an ellipse, a square, a rectangle, a pentagon, an irregular polygon, or the like.

In some embodiments, the elastic connection portion 3111 may be cut and bent directly from the nickel sheet 311. In combination with the ductility of the metal itself, the elastic connection portion 3111 has a certain elasticity at the bending position. In use, the elastic connection portion 3111 can be tightly abutted against the electrode posts of the corresponding position battery 11 by elastic force. Meanwhile, after the elastic connection portion 3111 is cut, a third notch 3112 corresponding to the elastic connection portion 3111 may be formed in the nickel plate 311. The third notch 3112 is formed to facilitate welding between the elastic connection portion 3111 and the battery 11.

Of course, in other embodiments, the elastic connection portion 3111 may also be fixedly connected to the nickel plate 311 by welding, screwing, or the like. Accordingly, at least at a position corresponding to the welding groove 3111a, a corresponding third notch 3112 is provided on the nickel plate 311 to facilitate welding of the elastic connection portion 3111 and the battery 11 by an operator.

As shown in fig. 10, 11 and 13, in the embodiment, the copper sheets 312 are disposed on one side of the nickel sheet 311 away from the bracket assembly 20, and the copper sheets 312 and the nickel sheet 311 are attached to each other, so as to electrically connect the copper sheets 312 and the nickel sheet 311, and the current in the nickel sheet 311 can flow into the copper sheets 312. In an embodiment, the red copper sheet 312 and the nickel sheet 311 may be fixedly connected by welding, specifically, the red copper sheet 312 may be welded from one side of the nickel sheet 311. For example, the red copper sheet 312 and the nickel sheet 311 may be connected by welding, such as laser welding, ultrasonic welding, or the like.

The red copper sheet 312 is further provided with a plurality of avoiding holes 3122, and the plurality of avoiding holes 3122 are in one-to-one correspondence with the plurality of elastic connection portions 3111 on the nickel sheet 311, so that an operator can weld the elastic connection portions 3111 and the battery 11. When the red copper sheets 312 and the nickel sheets 311 are welded, a plurality of welding points 314 may be disposed in a circumferential direction of each avoiding hole 3122 to ensure connection stability between the red copper sheets 312 and the nickel sheets 311.

In other embodiments, a continuous welding may be performed in the circumferential direction of each avoiding hole 3122 to form a weld line.

In the embodiment, a first connecting lug 3121 is further extended from one side of the red copper sheet 312 for electrically connecting a peripheral device, so that the external connection of the battery module can be realized. For example, the first connection ear 3121 may be used to electrically connect adjacent battery packs or a main board of a mobile power supply. In an embodiment, the first connecting ears 3121 are convexly disposed with respect to the nickel plate 311.

As shown in fig. 10, in some specific embodiments, the edge of the nickel plate 311 and the copper plate 312 may also be fixedly connected by welding at a position close to the first connecting lug 3121, so as to enhance the connection stability of the nickel plate 311 and the copper plate 312. Accordingly, the welds 314 may be distributed in a racetrack pattern at this location.

In other embodiments, the welding spots 314 near the first connecting ears 3121 can be distributed in an array and arranged in multiple rows. Of course, continuous welding may also be performed to form a weld line.

The insulation sheet 313 can be attached to one side of the red copper sheet 312 away from the nickel sheet 311 by gluing or the like, and the insulation sheet 313 is used for realizing insulation between the first connection sheet assembly 31 and the outside. For example, the insulation sheet 313 may be used to insulate the two tab assemblies 30 in adjacent battery modules, insulate the tab assemblies 30 from the mobile power supply box, and the like. It can be understood that the insulation sheet 313 is disposed avoiding the first connection ears 3121 on the red copper sheet 312.

In use, the first connection tab assembly 31 may be connected between the battery pack 10 of the battery module and an external device. Specifically, the nickel plate 311 may be electrically connected to the battery pack 10, and the copper plate 312 may be electrically connected to the peripheral devices. Therefore, in the charging and discharging processes of the battery module, the current passing through the nickel plate 311 is converged into the copper sheet 312 and flows out, or the current passes through the copper sheet 312 and then flows to each corresponding part of the nickel plate 311.

The overload current per square millimeter of the red copper sheet 312 can reach 8A, which is much higher than that of pure nickel. Therefore, the overload current of the whole first connecting piece component 31 can be effectively increased, and the transmission requirement of larger current can be met. When the first connection tab assembly 31 outputs or inputs the current, the problem of fire of the battery module caused by the excessive transmission current can be avoided, thereby ensuring the use safety and avoiding unnecessary loss to the user.

In the embodiment, the structure of the second connecting piece assembly 32 is the same as that of the first connecting piece assembly 31, and the description thereof is omitted.

Since the first and second tab members 31 and 32 pass a larger current with respect to other positions in the battery module. In this application, copper sheets 312 have all been increased in first connecting piece subassembly 31 and second connecting piece subassembly 32 to can increase the overcurrent of first connecting piece subassembly 31 and second connecting piece subassembly 32, can bear bigger electric current and pass through, avoid arousing the problem that the battery module fires because of the overcurrent through transmission current is too big to correspond connecting piece subassembly 30.

In an embodiment, the current passing through the third, fourth and fifth tab assemblies 33, 34 and 35 may be relatively small with respect to the first and second tab assemblies 31 and 32. In the embodiment, the third, fourth and fifth land assemblies 33, 34 and 35 may be provided with only the nickel plate 311 and the insulation plate 313. It is understood that the insulation sheet 313 is attached to the side of the nickel sheet 311 away from the bracket assembly 20 to achieve insulation protection of the corresponding connection sheet assembly 30. In the embodiment, the nickel plate 311 in the third, fourth and fifth connection plate assemblies 33, 34 and 35 is provided with a second connection lug 3113, so as to facilitate external connection of a main board of a mobile power supply and other structures. It is understood that the nickel plate 311 of the third, fourth and fifth tab assemblies 33, 34 and 35 is also provided with corresponding elastic connection portions 3111 for electrically connecting the battery 11.

In the embodiment, the total number of the elastic connection portions 3111 provided in the first, second, and third connecting piece assemblies 31, 32, and 33 is equal to the total number of the elastic connection portions 3111 provided in the fourth and fifth connecting piece assemblies 34 and 35. And the total number of the elastic connection parts 3111 provided in the first, second, and third connecting blade assemblies 31, 32, and 33 is equal to the number of the batteries 11 provided in the battery pack 10.

Further, as shown in fig. 1 and 8, the bracket assembly 20 is further provided with a supporting plate 215, and the supporting plate 215 can be used to support the first engaging lug 3121 or the second engaging lug 3113 of the connecting plate assembly 30.

Specifically, the supporting plate 215 may be protruded from one side of the positioning slot 211, and the supporting plate 215 may be located on a plane where the bottom of the positioning slot 211 is located. It will be appreciated that the support plate 215 is disposed to correspond to the side of the connecting plate assembly 30 on which the connecting lugs are disposed. Thus, when the connecting piece assembly 30 is mounted in the positioning slot 211, the corresponding connecting lug can be fit on the supporting plate 215, and the supporting plate 215 provides corresponding supporting function.

In one embodiment, a corresponding supporting plate 215 may be disposed on a side of each positioning groove 211. Wherein, the plurality of support plates 215 located on the first support 21 can be located at the same side position of the first support 21. The plurality of support plates 215 located on the second support 22 may be located at the same lateral position of the second support 22. And the supporting plate 215 of the first bracket 21 is disposed opposite to the supporting plate 215 of the second bracket 22, it is understood that the two groups of supporting plates 215 are disposed on the same side of the bracket assembly 20 in a protruding manner. Correspondingly, the connecting lugs of the five sets of connecting plate assemblies 30 are all disposed corresponding to the same side of the bracket assembly 20. Thus, in use, the main board of the portable power source can be disposed on a side of the bracket assembly 20 adjacent to the engaging lugs, so that each engaging lug can be connected to the main board.

As shown in fig. 1, 3 and 8, in the embodiment, the support stand assembly 20 is further provided with a support pillar 216, and in use, the support pillar 216 can be used to support a main board of the mobile power supply. A plurality of support posts 216 may be disposed on the frame assembly 20 and are positioned on a side of the frame assembly 20 adjacent to the attachment ears. In one embodiment, a plurality of support posts 216 may be disposed on corresponding sidewalls of the first and second brackets 21 and 22.

In the embodiment, the bracket assembly 20 is further provided with corresponding marks for identifying the positive/negative electrodes of the batteries 11 at corresponding positions of the battery pack 10. Specifically, the first marking portion 213 is disposed on the first bracket 21, and the second marking portion 223 is disposed on the second bracket 22, which are both used for marking the positive/negative poles of the battery 11 at the corresponding position, so as to facilitate connection by an operator.

In the embodiment, still provide a portable power source, including casing, mainboard and the battery module that this application provided, battery module and mainboard are all fixed to be set up in the casing, and battery module accessible first engaging lug 3121 and second engaging lug 3113 are connected with the mainboard electricity.

In some embodiments, two sets of battery modules may be disposed, and both sets of battery modules are electrically connected to the motherboard. The two battery components can be fixedly connected through screws.

Specifically, the outer sidewall of the bracket assembly 20 is provided with a third connecting column 222, and the third connecting column 222 is disposed near the edge of the bracket assembly 20. So that the third connection posts 222 of the two battery modules are aligned and connected by screws when the two battery modules are connected. In an embodiment, the outer sidewall of the bracket assembly 20 is further provided with a guide groove 217 corresponding to the third connection column 222, and the guide groove 217 can extend from a side of the bracket assembly 20 away from the third connection column 222 to the position of the third connection column 222. When connecting two battery modules, the guide groove 217 may guide a screw so that the screw is inserted into the third connecting post 222.

In one embodiment, the motherboard can be fixedly mounted on the supporting posts 216 of the two battery modules.

Furthermore, the shell can be provided with a corresponding power line plug, a Universal Serial Bus (USB) interface and a switch button. The switch key can be used for controlling the switch of the mobile power supply. The power line connector can be connected with the mains supply through a wire so as to charge the mobile power supply. The USB interface can be connected with electronic products such as a mobile phone and a tablet personal computer through a data line so as to supply power to the electronic products.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (10)

1. A battery module is characterized by comprising a battery pack, a bracket assembly and a plurality of groups of connecting piece assemblies, wherein the battery pack is fixedly arranged in the bracket assembly;

the plurality of groups of connecting piece assemblies are arranged on two opposite outer side walls in the bracket assembly, and the plurality of groups of connecting piece assemblies are electrically connected with the battery pack;

and positioning grooves are formed in the two outer side walls of the support component and used for positioning the connecting piece components, and the positioning grooves and the connecting piece components are arranged in a one-to-one correspondence manner.

2. The battery module according to claim 1, wherein the bracket assembly comprises a first bracket and a second bracket which are separately arranged; the second support is detachably connected to the first support, and an accommodating cavity for accommodating the battery pack is formed between the first support and the second support.

3. The battery module as set forth in claim 2, wherein a plurality of first fixing grooves are formed on one side of the first bracket close to the accommodating cavity, a plurality of second fixing grooves are formed on one side of the second bracket close to the accommodating cavity, and the second fixing grooves are in one-to-one correspondence with the first fixing grooves;

the first fixing grooves are matched with the corresponding second fixing grooves to fix the single battery in the battery pack.

4. The battery module according to claim 2, wherein a first connecting column is further arranged on one side of the first bracket close to the accommodating cavity, a second connecting column is arranged on one side of the second bracket close to the accommodating cavity, and the first connecting column is detachably connected with the second connecting column.

5. The battery module according to any one of claims 1 to 4, wherein the bracket assembly is provided with heat dissipation holes for communicating the inside of the bracket assembly with the outside.

6. The battery module of claim 1, wherein the plurality of sets of tab assemblies includes at least a first tab assembly and a second tab assembly;

the first and second connecting tab assemblies are used to connect the battery pack.

7. The battery module according to claim 6, wherein the first connection tab assembly and the second connection tab assembly each comprise an insulation sheet, a red copper sheet and a nickel sheet which are sequentially stacked; the nickel sheet is electrically connected with the red copper sheet and the battery pack respectively.

8. The battery module according to claim 7, wherein a plurality of elastic connecting parts are arranged on the nickel sheet in a protruding manner, and the elastic connecting parts are arranged in a protruding manner in a direction away from the copper sheet, and the elastic connecting parts are electrically connected with the batteries in the battery pack; and the red copper sheet is provided with an avoiding hole corresponding to the elastic connecting part.

9. The battery module according to any one of claims 6 to 8, wherein the plurality of sets of tab assemblies further comprises a third tab assembly, a fourth tab assembly, and a fifth tab assembly;

the third connecting plate assembly, the fourth connecting plate assembly and the fifth connecting plate assembly all comprise insulating sheets and nickel sheets which are stacked, and the nickel sheets are connected with the battery pack.

10. A mobile power supply characterized by comprising the battery module according to any one of claims 1 to 9.

Images