CN210296427U

CN210296427U - Battery module shell and battery module

Info

Publication number: CN210296427U
Application number: CN201920557440.5U
Authority: CN
Inventors: 孙中伟; 黄德华; 胡超; 吴中林; 白炜
Original assignee: Shenzhen Hello Tech Energy Co Ltd
Current assignee: Shenzhen Hello Tech Energy Co Ltd
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2020-04-10
Anticipated expiration: 2029-04-23

Abstract

The utility model discloses a battery module shell and battery module, wherein, this battery module shell has relative first curb plate and the second curb plate that sets up in interval, and the interval is equipped with the chamber of acceping that a plurality of is used for holding electric core between first curb plate and the second curb plate, and the outside interval of first curb plate is equipped with a plurality of draw-in groove, and the outside of second curb plate is equipped with and counterpoints the setting with the draw-in groove and be used for with the draw-in groove screens complex fixture block of another battery module shell. The utility model provides a battery module shell through the screens cooperation of draw-in groove and fixture block, has realized dismantling between the battery module shell and has connected to can control the quantity of electric core in a flexible way, make the battery module shell more nimble in practical application, facilitate the use.

Description

Battery module shell and battery module

Technical Field

The utility model relates to a battery equipment technical field especially relates to a battery module shell and use battery module of this battery module shell.

Background

With the development of society and the increasing deterioration of environment, energy storage equipment is more and more widely applied in the life of people. The energy storage battery is a battery module formed by connecting the battery cell monomers in series or in series-parallel, and the battery module is widely applied due to the advantages of good expansibility, convenience in installation and the like. Battery module all has the shell that holds electric core usually, and in order to obtain bigger electric energy, people often need link together a plurality of shells to put into more electric cores, thereby obtain bigger electric energy, but prior art is usually with shell fixed connection together, people can not be according to the nimble quantity of increase and decrease electric core of actual conditions, inconvenient use.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, one of the objects of the present invention is to provide a battery module housing, which is used for solving the problem that the number of battery cells of the existing battery module cannot be flexibly increased or decreased according to the actual situation; a second object of the present invention is to provide a battery module, which uses the battery module housing as described above.

The utility model discloses an one of the purpose adopts following technical scheme to realize:

the utility model provides a battery module shell, has relative first curb plate and the second curb plate that sets up in interval, first curb plate with the interval is equipped with the chamber of acceping that a plurality of is used for holding electric core between the second curb plate, the outside interval of first curb plate is equipped with a plurality of draw-in groove, the outside of second curb plate be equipped with the draw-in groove counterpoint set up and be used for with another the battery module shell draw-in groove screens complex fixture block.

Furthermore, each clamping block comprises a connecting portion and a clamping portion, two opposite sides of the connecting portion are respectively connected with the second side plate and the clamping portion, an inclined surface inclined relative to the second side plate is arranged on one side, close to the second side plate, of the clamping portion, and the shape of the clamping groove is matched with that of the clamping block.

Further, the battery module shell includes the upper casing and through screwed connection in the lower casing of upper casing bottom, the upper casing first curb plate and/or the casing down first curb plate be equipped with a plurality of the draw-in groove, the upper casing second curb plate and/or the casing down the second curb plate counterpoint be equipped with a plurality of the fixture block.

Furthermore, the upper shell is provided with a plurality of first cavities at intervals, the lower shell is provided with second cavities which are consistent in number with the first cavities and are aligned with the first cavities one by one in an up-down alignment manner, the first cavities and the second cavities are arranged in a plurality of rows and a plurality of columns, and each first cavity and one second cavity which is positioned right below the first cavity are combined to form the accommodating cavity.

Further, the cross-sectional area of the top of the first cavity is smaller than the cross-sectional area of the bottom of the first cavity, the cross-sectional shape of the top of the first cavity is circular, the cross-sectional shape of the bottom of the first cavity is square, the cross-sectional area of the top of the second cavity is larger than the cross-sectional area of the bottom of the second cavity, the cross-sectional shape of the top of the second cavity is square, and the cross-sectional shape of the bottom of the second cavity is circular.

Furthermore, a plurality of positioning columns extending upwards are arranged at intervals on the top of the upper shell, a nut used for installing a battery management system is arranged in each positioning column, and a positioning hole which is aligned with the positioning column and is used for being matched with the positioning column of the other upper shell is arranged at the bottom of the lower shell; and/or the presence of a gas in the atmosphere,

the top of the upper shell and the bottom of the lower shell are provided with a plurality of protrusions at intervals, and the protrusions are used for being matched with the connecting holes in the nickel strap in a clamping mode.

Furthermore, still be equipped with the mounting hole that is used for installing the inverter board on the battery module shell.

Further, the battery module shell further comprises a sleeve and a screw rod, the sleeve is detachably mounted in the mounting hole, and the screw rod penetrates through the inverter board and then is connected with the sleeve to fix the inverter board on the sleeve.

Further, be equipped with on the first curb plate and/or the second curb plate and be used for with battery module shell installs to external equipment's mounting panel, it is equipped with the through-hole that is used for supplying the fastener to wear to establish to run through on the mounting panel.

The second purpose of the utility model is realized by adopting the following technical scheme:

the utility model provides a battery module, includes battery module, nickel strap subassembly and at least one as above battery module shell, the battery module subassembly includes a plurality of electric core, electric core accept in battery module shell accept the intracavity, the nickel strap subassembly be fixed in battery module shell's top and bottom and with electric core electric connection.

Compared with the prior art, the beneficial effects of the utility model reside in that: through set up the draw-in groove on first curb plate, set up the fixture block on the second curb plate, the fixture block can cooperate with the draw-in groove screens of another battery module shell, has realized dismantling between the battery module shell and has connected, consequently, can be according to actual need, the corresponding increase or reduce the quantity of battery module shell to reach the effect of nimble control electric core quantity, make the battery module that adopts this battery module shell use more in a flexible way, make things convenient for people to use.

Drawings

Fig. 1 is a schematic structural diagram of a battery module housing according to an embodiment of the present invention;

fig. 2 is an assembly schematic diagram of three battery module housings according to an embodiment of the present invention;

fig. 3 is an exploded view of the battery module housing shown in fig. 1;

FIG. 4 is a schematic view of the structure of FIG. 1 from another angle;

fig. 5 is a partially enlarged view of a portion a in fig. 4.

In the figure: 100. a battery module housing; 10. a first side plate; 20. a second side plate; 11. a card slot; 21. a clamping block; 211. a connecting portion; 212. a clamping part; 213. a bevel; 30. an upper housing; 40. a lower housing; 31. a first cavity; 41. a second cavity; 32. a positioning column; 42. positioning holes; 33. mounting holes; 43. a protrusion; 50. mounting a plate; 51. a through hole; 60. a sleeve; 70. a screw.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, back, inner, outer, top, bottom … …) in the embodiments of the present invention are only used to explain the relative position between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

As shown in fig. 1-5, an embodiment of the present invention provides a battery module case 100, which has a first side plate 10 and a second side plate 20, which are disposed at opposite intervals, wherein a plurality of accommodating cavities are disposed at intervals between the first side plate 10 and the second side plate 20, the plurality of accommodating cavities are used for accommodating battery cells, a plurality of clamping grooves 11 are disposed at intervals outside the first side plate 10, and a clamping block 21 is disposed at the outside of the second side plate 20 and is aligned with the clamping grooves 11 and used for clamping and matching with the clamping grooves 11 of another battery module case 100. With this design, through set up draw-in groove 11 on first curb plate 10, set up fixture block 21 on second curb plate 20, this fixture block 21 can cooperate with the 11 screens of draw-in groove of another battery module shell 100, has realized dismantling between the battery module shell 100 and has connected, consequently, people can be according to actual need, corresponding increase or reduce the quantity of battery module shell 100 to reach the effect of nimble control electric core quantity, made things convenient for people's use. Still accept the chamber through the interval setting on battery module shell 100 simultaneously, when certain electric core breaks down, can not influence the normal work of other electric cores, improved the reliability of the battery module who uses this battery module shell 100. Specifically, in the present embodiment, the battery module housing 100 is made of plastic material.

Preferably, each latch 21 includes a connecting portion 211 and a latching portion 212, two opposite sides of the connecting portion 211 are respectively connected to the second side plate 20 and the latching portion 212, a side of the latching portion 212 close to the second side plate 20 is provided with an inclined surface 213 inclined with respect to the second side plate 20, and the shape of the slot 11 is matched with the shape of the latch 21. With this design, through establishing fixture block 21 into connecting portion 211 and screens portion 212, one side that screens portion 212 is close to second curb plate 20 sets up inclined plane 213, the shape of draw-in groove 11 and the shape looks adaptation of fixture block 21, like this, inclined plane 213 can play the effect of direction, makes things convenient for fixture block 21 to insert in the draw-in groove 11 to make things convenient for battery module shell 100's dismantlement and equipment.

Preferably, the battery module housing 100 includes an upper case 30 and a lower case 40 screwed to the bottom of the upper case 30, the first side plate 10 of the upper case 30 and/or the first side plate 10 of the lower case 40 are provided with a plurality of locking slots 11, and the second side plate 20 of the upper case 30 and/or the second side plate 20 of the lower case 40 are provided with a plurality of locking blocks 21 in alignment. Specifically, in the present embodiment, the first side plate 10 of the upper case 30 and the first side plate 10 of the lower case 40 are both provided with the locking groove 11, and the second side plate 20 of the upper case 30 and the second side plate 20 of the lower case 40 are both provided with the locking block 21, so that the stability between the battery module housings 100 is enhanced. It is understood that the card slot 11 is only provided on the first side plate 10 of the upper casing 30 or the first side plate 10 of the lower casing 40, and the card block 21 is only provided on the second side plate 20 of the upper casing 30 or the second side plate 20 of the lower casing 40.

Preferably, in the present embodiment, the upper housing 30 and the lower housing 40 are connected by self-tapping screws. Thus, the upper shell 30 and the lower shell 40 are convenient to connect without matching with nuts, and meanwhile, the production cost is saved. Of course, in practical applications, the upper housing 30 and the lower housing 40 may be connected by other mechanical means, or may be fixed by direct gluing.

Preferably, in the present embodiment, four locking slots 11 are provided on the first side plate 10 of the upper casing 30 and the first side plate 10 of the lower casing 40, and four locking blocks 21 are provided on the second side plate 20 of the upper casing 30 and the second side plate 20 of the lower casing 40. This design further enhances the stability between the battery module housings 100. Of course, in practical applications, the number of the card slots 11 on the first side plate 10 of the upper casing 30 and the first side plate 10 of the lower casing 40 is not limited to four, and the number of the card slots 21 on the second side plate 20 of the upper casing 30 and the second side plate 20 of the lower casing 40 is not limited to four, for example, one, two or other numbers may also be possible.

Preferably, the upper housing 30 is provided with a plurality of first cavities 31 at intervals, the lower housing 40 is provided with a plurality of second cavities 41 which are the same as the first cavities 31 in number and are aligned with the first cavities 31 one by one in a vertical alignment manner, the first cavities 31 and the second cavities 41 are arranged in a plurality of rows and a plurality of columns, and each first cavity 31 and one second cavity 41 located right below the first cavity are combined to form an accommodating cavity. In this design, the first cavity 31 is disposed on the upper casing 30, the second cavity 41 is disposed on the lower casing 40, and the first cavity 31 and the second cavity 41 are combined to form an accommodating cavity, so that the battery cell can be conveniently placed in the accommodating cavity, and meanwhile, since each first cavity 31 and each second cavity 41 are disposed at intervals, the accommodating cavities formed by combining the first cavity 31 and the second cavity 41 are also independent from each other.

Preferably, the cross-sectional area of the top of the first cavity 31 is smaller than the cross-sectional area of the bottom of the first cavity 31, the cross-sectional shape of the top of the first cavity 31 is circular, the cross-sectional shape of the bottom is square, the cross-sectional area of the top of the second cavity 41 is larger than the cross-sectional area of the bottom of the second cavity 41, the cross-sectional shape of the top of the second cavity 41 is square, and the cross-sectional shape of the bottom is circular. With this design, establish the circular port through the top with first cavity 31 and the bottom of second cavity 41, the quad slit is established into to the bottom of first cavity 31 and the top of second cavity 41, like this, the circular port can play the fixed action to electric core, can prevent that electric core from rocking accommodating the intracavity, and the area of quad slit is greater than the area of circular port, consequently, electric core is accommodated when accommodating the intracavity, can form the space with the lateral wall of accommodating the chamber middle part position, be favorable to the heat dissipation of electric core, thereby the life of electric core has been improved.

Preferably, a plurality of positioning posts 32 extending upward are spaced apart from the top of the upper housing 30, and a positioning hole 42 is formed at the bottom of the lower housing 40 and aligned with the positioning posts 32 for matching with the positioning posts 32 of another upper housing 30. In this design, the positioning posts 32 are disposed on the top of the upper housing 30, the positioning holes 42 are disposed on the bottom of the lower housing 40, and the positioning holes 42 can be inserted by the positioning posts 32 of another upper housing 30, so that the battery module housing 100 can be stacked in the longitudinal direction, and the use process is more flexible. Specifically, in the present embodiment, two positioning posts 32 are provided, which enhances the stability between the battery module housings 100. Of course, the number of positioning posts 32 is not limited to two in a particular application, and one or more may be possible, for example.

Preferably, in this embodiment, each positioning column 32 is provided with a nut for mounting the battery management system, and the battery management system can be mounted on the positioning column 32 through the cooperation of the bolt and the nut. This design through setting up battery management system, can prevent the overcharge or the overdischarge of battery module, has promoted the reliability of product.

Preferably, the battery module case 100 is further provided with a mounting hole 33 for mounting the inverter board. In this design, the battery module converts low-voltage dc power into 220V ac power by providing the mounting hole 33 for mounting the inverter board in the upper case 30.

Preferably, the battery module housing 100 further includes a sleeve 60 and a screw 70, the sleeve 60 is detachably mounted in the mounting hole 33, and the screw 70 is connected to the sleeve 60 after passing through the inverter board to fix the inverter board to the sleeve 60. In the design mode, the connection mode of the screw rod 70 and the sleeve 60 is simple, and the installation of the inverter board is facilitated. Also, since the sleeve 60 is detachably mounted in the mounting hole 33, when a plurality of battery module housings 100 are longitudinally assembled, the surplus sleeve 60 can be detached.

Preferably, the top of the upper shell 30 and the bottom of the lower shell 40 are spaced apart by a plurality of protrusions 43 for engaging with the engagement holes on the nickel strap. With this design, set up protruding 43 through the top at last casing 30 and the bottom of casing 40 down, the nickel strap can be in the same place a plurality of electric core electric connection to obtain bigger electric energy, set up the connecting hole with protruding 43 structure looks adaptations on the nickel strap, through the cooperation of protruding 43 with the connecting hole, conveniently fix the nickel strap on battery module shell 100. Specifically, in the present embodiment, the projection 43 has a square shape. It will be appreciated that the shape of the projection 43 is not limited to a square shape, and for example, a circular or oval shape is also possible.

Preferably, in the present embodiment, the positioning column 32 is disposed on the protrusion 43, and a corner of the square protrusion 43 extends to above or below the accommodating cavity, so as to prevent the battery cell from falling out of the accommodating cavity.

Preferably, the first side plate 10 and/or the second side plate 20 are provided with mounting plates 50 for mounting the battery module housing 100 to an external device, and the mounting plates 50 are provided with through holes 51 for fasteners to pass through. Specifically, in the present embodiment, the mounting plates 50 are disposed on the first side plates 10 of the upper and

lower cases

30 and 40 and the second side plates 20 of the upper and

lower cases

30 and 40, so that the stability between the battery module housings 100 and the external device is enhanced, and at the same time, the mounting plates 50 are detachably connected to the first and

second side plates

10 and 20, and when a plurality of battery module housings 100 are transversely spliced, the mounting plates 50 are only required to be disposed on the first and

second side plates

10 and 20 located on the outermost side, and the surplus ones can be detached.

The embodiment of the utility model provides a pair of battery module, including battery module, nickel strap subassembly and at least one as above battery module shell 100, the battery module includes a plurality of electricity core, and the intracavity is acceptd in accommodating of battery module shell 100 to the electricity core, the nickel strap subassembly be fixed in battery module shell 100 the top and the bottom and with electric core electric connection. Because this battery module has used foretell battery module shell 100, consequently, this battery module has the characteristics that can nimble control electric core's quantity to control battery module's electric capacity. Specifically, in the present embodiment, the battery cell is preferably a lithium battery cell having high capacitance, long service life and environmental protection.

The beneficial effects of the utility model reside in that: through the cooperation of draw-in groove 11 and fixture block 21 on another battery module shell 100, can realize battery module shell 100 in horizontal concatenation, and through the cooperation of locating hole 42 on reference column 32 and another battery module shell 100, can realize the concatenation of battery module shell 100 on vertical, can be in order to control the quantity of electric core in a flexible way to can be according to actual need, control the electric capacity of battery module in a flexible way.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. A battery module casing, characterized in that it has a first side plate and a second side plate that are arranged opposite to each other at intervals, and several A accommodating cavity for accommodating batteries, the outer side of the first side plate is provided with a number of card slots at intervals, and the outer side of the second side plate is provided with a position aligned with the card slots and used for connecting with another battery A card block matched with the card slot of the module housing.

2 . The battery module casing according to claim 1 , wherein each of the latching blocks comprises a connecting portion and a latching portion, and opposite sides of the connecting portion are respectively connected to the second side plate and the second side plate. 3 . The clamping part is connected, the side of the clamping part close to the second side plate is provided with a slope inclined relative to the second side plate, and the shape of the clamping slot is suitable for the shape of the clamping block match.

3 . The battery module casing according to claim 1 , wherein the battery module casing comprises an upper casing and a lower casing connected to the bottom of the upper casing by screws, and the upper casing has a lower casing. 4 . The first side plate and/or the first side plate of the lower casing is provided with a plurality of the snap grooves, and the second side plate of the upper casing and/or the lower casing The second side plate of the second side plate is provided with a plurality of the clamping blocks.

4 . The battery module casing of claim 3 , wherein the upper casing is provided with a plurality of first cavities at intervals, and the number of the lower casing is the same as the number of the first cavities. 5 . and are respectively aligned with the first cavities up and down, the first cavities and the second cavities are arranged in several rows and several columns, each of the first The cavity and one of the second cavities directly below the cavity are combined to form the accommodating cavity.

5 . The battery module case according to claim 4 , wherein the cross-sectional area of the top of the first cavity is smaller than the cross-sectional area of the bottom of the first cavity, and the top of the first cavity is smaller than the cross-sectional area of the bottom of the first cavity. The cross-sectional shape is circular, the cross-sectional shape of the bottom is square, the cross-sectional area of the top of the second cavity is larger than the cross-sectional area of the bottom of the second cavity, and the cross-sectional area of the top of the second cavity is larger than the cross-sectional area of the bottom of the second cavity. The cross-sectional shape is square, and the cross-sectional shape of the bottom is circular.

6 . The battery module casing according to claim 3 , wherein a plurality of positioning posts extending upward are provided at intervals on the top of the upper casing, and each of the positioning posts is provided with a battery management module for installing battery management. 7 . The nut of the system, the bottom of the lower shell is provided with positioning holes aligned with the positioning columns and used for matching with the positioning columns of the other upper shell; and/or,

The top of the upper casing and the bottom of the lower casing are both provided with a plurality of protrusions at intervals for engaging with the connecting holes on the nickel tape.

7 . The battery module casing according to claim 1 , wherein the battery module casing is further provided with a mounting hole for mounting an inverter board. 8 .

8 . The battery module casing according to claim 7 , wherein the battery module casing further comprises a sleeve and a screw rod, the sleeve is detachably installed in the installation hole, and the screw rod passes through the installation hole. 9 . The inverter board is then connected with the sleeve to fix the inverter board on the sleeve.

9 . The battery module casing according to claim 1 , wherein the first side plate and/or the second side plate is provided with a mounting for mounting the battery module casing to an external device. 10 . The mounting plate is provided with through holes for passing through the fasteners.

10. A battery module, characterized in that it comprises a cell assembly, a nickel strip assembly and at least one battery module casing according to any one of claims 1-9, the cell assembly comprising several cells and the battery core is accommodated in the accommodating cavity of the battery module casing, and the nickel strip assembly is fixed on the top and bottom of the battery module casing and is electrically connected with the battery core.