CN213459963U

CN213459963U - Single battery module

Info

Publication number: CN213459963U
Application number: CN202022248545.8U
Authority: CN
Inventors: 杨尚勇; 杨德财; 娄隆圣; 连抒翔; 汤林
Original assignee: Fujian Super Power New Energy Co ltd
Current assignee: Fujian Super Power New Energy Co ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-06-15
Anticipated expiration: 2030-10-10

Abstract

The utility model discloses a single battery module, including casing, battery main body, utmost point ear mount, two busbars and two connectors. The battery main body is fixedly arranged in the shell, the lug fixing frame is arranged at one side of the shell close to the lug of the battery main body, the bus bars are fixed on the lug fixing frame, and the two lugs of the battery main body are respectively and electrically connected with the two bus bars. The connector comprises a connector main body and a plurality of information acquisition wiring harnesses, the connector main body is fixed on the lug fixing frame, one end of each information acquisition wiring harness is fixed in the connector main body, and the other end of each information acquisition wiring harness is fixed on the busbar. According to the scheme, the connector for connecting the information acquisition wire harness and the BMS system is additionally arranged on the battery module, so that the external acquisition wire can be directly detached in a plug-in mode, and the installation and maintenance are convenient; the connector is fixed on utmost point ear mount, has increased fixed point location once, has strengthened joint strength, reduces the risk of droing, especially in portable application scenes such as electric automobile, electric ship, improves system operation stability.

Description

Single battery module

Technical Field

The utility model relates to a battery technology field, in particular to battery cell module.

Background

In the battery module, the information collecting harness is a harness for collecting and transmitting signals such as voltage, temperature, and balance of the battery, and in the conventional battery module, one end of the information collecting harness is directly welded or bolted to the bus bar, and the other end is connected to a BMS (battery management system). The above structure has the problems of inconvenience in mounting/dismounting and insufficient connection strength, and the stability and reliability are also poor.

Disclosure of Invention

To the technical problem who proposes in the background art, the utility model aims to provide a connect reliable and the good battery cell module of stability.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

a single battery module comprises a shell, a battery main body, a lug fixing frame, two busbars and two connectors. The battery body set firmly inside the casing, utmost point ear mount establish the utmost point ear one side that is close to battery body inside the casing, the busbar fix on the utmost point ear mount, battery body's two poles of the earth ear is connected with two busbar electricity respectively. The connector comprises a connector main body and a plurality of information acquisition wiring harnesses, the connector main body is fixed on the lug fixing frame, one end of each information acquisition wiring harness is fixed in the connector main body, and the other end of each information acquisition wiring harness is fixed on the busbar.

Furthermore, the information acquisition wiring harness comprises a voltage acquisition wiring harness, a temperature acquisition wiring harness and a balance acquisition wiring harness.

Preferably, the tab of the battery main body is fixed to the upper surface of the bus bar by means of laser welding or ultrasonic welding.

Preferably, the information acquisition wire harness is fixed on the bus bar in a laser welding mode, a hot melt adhesive bonding mode or an ultrasonic welding mode.

Furthermore, in order to better realize the fixation of the connector, the left side and the right side of the front wall surface of the tab fixing frame are respectively provided with a fixing buckle for fixing the connector.

Further, in order to further improve the mounting structure strength of the shell, the upper side and the lower side of the middle position of the lug fixing frame are respectively inwards recessed to form two grooves, the shell is bent at the corresponding position of the grooves to form convex hulls used for being clamped into the grooves, and U-shaped fixing lugs used for locking the lug fixing frame and the shell together are arranged on the outer side of the shell.

Furthermore, utmost point ear mount include the two poles of the earth ear supports that bilateral symmetry set up, the top and the bottom of utmost point ear support be equipped with respectively in the one end of keeping away from utmost point ear be used for with the spacing step of the edge looks butt of casing.

Furthermore, the left side and the right side of the front end of the shell are respectively provided with a fixing lug for fixing the battery module on the battery cabinet.

Further, the shell comprises an upper shell and a lower shell which are buckled with each other.

Wherein, in order to realize the reciprocal anchorage of casing about better, the edge of epitheca is provided with a plurality of first buckles and first card protrudingly, first buckle and first card protrudingly set up in turn in proper order, be equipped with a plurality of respectively on the edge relevant position of inferior valve be used for with first buckle, the protruding second card of looks joint of first card protrudingly, the second buckle.

Wherein, the inferior valve is in the first heavy groove of the one side bending type that keeps away from utmost point ear, be equipped with the first arch of a plurality of on the bottom surface in the first heavy groove, the epitheca is in downward bending type becomes the heavy groove of second on the relative position in first heavy groove, be equipped with on the bottom surface in the heavy groove of second a plurality of with the second of first protruding one-to-one is protruding, and the riveting hole has been seted up respectively on the protruding relative position of first arch and second to the laminating of the bellied lower surface of first bellied upper surface and second mutually.

Preferably, in order to further improve the structural strength and the shock resistance of the module, the upper surface and the lower surface of the housing are respectively provided with reinforcing ribs.

Preferably, the connector is an IL-AG9-3P-S3C1 direct-insert connector.

The utility model discloses following beneficial effect has:

1. the connector used for connecting the information acquisition wiring harness and the BMS system is additionally arranged on the battery module, so that the external acquisition wire can be directly removed in a plug-in mode, and the installation and maintenance are convenient; the connector is fixed on the lug fixing frame, so that one fixing point position is added, the connection strength is enhanced, the falling risk is reduced, and the system operation stability is improved particularly in mobile application scenes such as electric automobiles, electric ships and the like;

2. the information acquisition wiring harness is fixed on the busbar through laser welding, hot melt adhesive bonding or ultrasonic welding, so that the fixed connection strength between the information acquisition wiring harness and the battery busbar can be remarkably enhanced, and the battery information acquisition wiring harness can be effectively prevented from falling off from the busbar;

3. the upper shell and the lower shell are fixedly connected with each other through the buckle structure, so that the displacement of the internal battery main body in the vertical direction can be effectively limited, the risk of dislocation and falling of the upper shell and the lower shell is reduced, and the product stability is improved;

4. the upper surface and the lower surface of the shell are respectively provided with a reinforcing rib, the top of the lower shell is provided with a first bulge, the bottom of the upper shell is provided with a second bulge, and the first bulge and the second bulge are mutually attached, so that the overall structural strength of the module is increased, the deformation of the module in the vertical direction is reduced, the anti-seismic and anti-impact capacity is improved, and the system operation stability is improved;

drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is an exploded view of the part of fig. 1.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 4 is a schematic perspective view of another angle of the present invention.

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

Fig. 6 is a schematic perspective view of a tab holder.

Description of the main component symbols: 1. a housing; 10. reinforcing ribs; 101. a convex hull; 102. a first sink tank; 103. a first protrusion; 104. a second sink tank; 105. a second protrusion; 106. riveting holes; 11. an upper shell; 111. a first buckle; 112. a first snap projection; 12. a lower case; 121. a second snap projection; 122. a second buckle; 2. a battery main body; 20. a tab; 3. a tab fixing frame; 30. a fixing buckle; 301. a groove; 31. a tab support; 310. a limiting step; 4. a bus bar; 5. a connector; 51. a connector body; 52. collecting the wire harness; 6. a U-shaped fixing lug; 7. and fixing the ears.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in fig. 1 to 6, a battery cell module includes a case 1, a battery main body 2, a tab fixing frame 3, two bus bars 4, and two connectors 5. The battery body 2 is fixedly arranged in the shell 1, the lug fixing frame 3 is arranged on one side of the lug 20 close to the battery body 2 in the shell 1, the bus bars 4 are fixed on the lug fixing frame 3, and the two lugs 20 of the battery body 2 are respectively electrically connected with the two bus bars 4. Preferably, the tab 20 is fixed to the upper surface of the busbar 4 by means of laser welding or ultrasonic welding. The connector 5 includes a connector body 51 and a number of information collecting harnesses 52. Preferably, the connector 5 is an IL-AG9-3P-S3C1 in-line connector. The information collection harness 52 includes a voltage collection harness, a temperature collection harness, and a balanced collection harness, among others. The connector main body 51 is fixed on the tab fixing frame 3, one end of the information collecting wire harness 52 is fixed in the connector main body 51, and the other end is fixed on the bus bar 4. Preferably, the information collection harness 52 is secured to the bus bar 4 by laser welding, hot melt adhesive bonding, or ultrasonic welding.

The left side and the right side of the front wall surface of the lug fixing frame 3 are respectively provided with a fixing buckle 30 for fixing the connector 5. The upper side and the lower side of the middle position of the pole lug fixing frame 3 are respectively inwards sunken to form two grooves 301, the shell 1 is bent at the corresponding position of the grooves 301 to form a convex hull 101 which is clamped in the grooves 301, and the outer side of the shell 1 is provided with a U-shaped fixing lug 6 which is used for locking the pole lug fixing frame 3 and the shell 1 together. The tab fixing frame 3 includes two tab supports 31 symmetrically disposed at left and right sides, and the top and bottom of the tab support 31 are respectively provided with a limiting step 310 for abutting against the edge of the housing 1 at one end far away from the tab 20.

The left and right sides of the front end of the shell 1 are respectively provided with a fixing lug 7 for fixing the battery module on the battery cabinet. Preferably, the upper and lower surfaces of the case 1 are provided with reinforcing ribs 10, respectively.

The housing 1 includes an upper case 11 and a lower case 12 which are fastened to each other. The edge of the upper shell 11 is provided with a plurality of first buckles 111 and first clamping protrusions 112, and the first buckles 111 and the first clamping protrusions 112 are sequentially and alternately arranged. A plurality of second locking protrusions 121 and second locking protrusions 122, which are respectively used for being locked with the first locking protrusions 111 and the first locking protrusions 112, are arranged at corresponding positions at the edge of the lower shell 12. Inferior valve 12 is in the one side upwards bending type that keeps away from utmost point ear 20 and is formed first heavy groove 102, be equipped with the first arch 103 of a plurality of on the bottom surface of first heavy groove 102, epitheca 11 is bent down on the relative position in first heavy groove 102 and is formed the heavy groove 104 of second, be equipped with the protruding 105 of second of a plurality of and first protruding 103 one-to-one on the bottom surface of the heavy groove 104 of second, the upper surface of first protruding 103 and the lower surface of the protruding 105 of second are laminated mutually, riveting hole 106 has been seted up respectively on the relative position of the protruding 105 of first protruding 103 and second.

In the above structure of the present invention, by adding the connector 5 for connecting the information acquisition harness 52 and the BMS system to the battery module, the external acquisition line can be directly removed by pulling and inserting, which is convenient for installation and maintenance; the connector 5 is fixed on the lug fixing frame 3, one more fixing point position is provided, the connection strength is enhanced, the falling risk is reduced, and especially in mobile application scenes such as electric automobiles, electric ships and the like, the system operation stability is improved. Information acquisition pencil 52 is fixed on busbar 4 through laser welding or hot melt adhesive bonding or ultrasonic bonding's mode, can show the fixed connection intensity between reinforcing information acquisition pencil 52 and battery busbar 4, can prevent effectively that battery information acquisition pencil 52 from droing from busbar 4.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A battery cell module, comprising: including casing, battery main part, utmost point ear mount, two busbars and two connectors, battery main part set firmly inside the casing, utmost point ear mount establish in the inside utmost point ear one side that is close to battery main part of casing, the busbar fix on the utmost point ear mount, battery main part's two pole ears are connected with two busbar electricity respectively, the connector include connector main part and a plurality of information acquisition pencil, the connector main part fix on the utmost point ear mount, the one end of information acquisition pencil is fixed in the connector main part, the other end is fixed on the busbar.

2. The battery cell module of claim 1, wherein: the information acquisition wiring harness comprises a voltage acquisition wiring harness, a temperature acquisition wiring harness and a balanced acquisition wiring harness.

3. The battery cell module of claim 1, wherein: and the electrode lugs of the battery main body are fixed on the upper surface of the bus bar in a laser welding or ultrasonic welding mode.

4. The battery cell module of claim 1, wherein: the information acquisition wire harness is fixed on the bus bar in a laser welding mode, a hot melt adhesive bonding mode or an ultrasonic welding mode.

5. The battery cell module of claim 1, wherein: and the left side and the right side of the front wall surface of the lug fixing frame are respectively provided with a fixing buckle for fixing the connector.

6. The battery cell module of claim 1, wherein: the upper side and the lower side of the middle position of the lug fixing frame are respectively inwards sunken to form two grooves, the shell is bent to form convex hulls used for being clamped into the grooves in the corresponding positions of the grooves, and U-shaped fixing lugs used for locking the lug fixing frame and the shell together are arranged on the outer side of the shell.

7. The battery cell module of claim 1, wherein: the lug fixing frame comprises two polar lug supports which are arranged in bilateral symmetry, and the top and the bottom of each lug support are respectively provided with a limiting step which is used for abutting against the edge of the shell at one end far away from the lug.

8. The battery cell module of claim 1, wherein: the left side and the right side of the front end of the shell are respectively provided with a fixing lug for fixing the battery module on the battery cabinet.

9. The battery cell module of claim 1, wherein: the shell comprises an upper shell and a lower shell which are mutually buckled together.

10. The battery cell module of claim 9, wherein: the edge of epitheca is provided with a plurality of first buckles and first card protrudingly, first buckle and first card protrudingly set up in turn in proper order, be equipped with a plurality of on the corresponding position of edge of inferior valve respectively be used for with first buckle, the protruding second card of looks joint of first card protrudingly, the second buckle.

11. The battery cell module of claim 9, wherein: the inferior valve is in the first heavy groove of the one side bending type formation of keeping away from utmost point ear, be equipped with the first arch of a plurality of on the bottom surface in the first heavy groove, the epitheca is in downward bending type formation second heavy groove on the relative position in first heavy groove, be equipped with on the bottom surface in the heavy groove of second a plurality of with the second of first protruding one-to-one is protruding, and the bellied lower surface of first bellied upper surface and second is laminated mutually, has seted up the riveting hole on the bellied relative position of first arch and second respectively.

12. A cell module according to any one of claims 1-11, wherein: and the upper surface and the lower surface of the shell are respectively provided with a reinforcing rib.

13. A cell module according to any one of claims 1-11, wherein: the connector is an IL-AG9-3P-S3C1 direct-insertion connector.