CN112421173A - Lithium battery module for forklift - Google Patents
Lithium battery module for forklift Download PDFInfo
- Publication number
- CN112421173A CN112421173A CN202011269182.4A CN202011269182A CN112421173A CN 112421173 A CN112421173 A CN 112421173A CN 202011269182 A CN202011269182 A CN 202011269182A CN 112421173 A CN112421173 A CN 112421173A
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- CN
- China
- Prior art keywords
- battery module
- lithium battery
- forklift
- metal connecting
- recited
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07513—Details concerning the chassis
- B66F9/07531—Battery compartments
Abstract
The invention relates to the technical field of battery modules, in particular to a lithium battery module for a forklift, which comprises an outer shell and a plurality of battery cells arranged in a row, wherein the plurality of battery cells are packaged together through the outer shell, the plurality of battery cells are connected with an acquisition terminal female head through a lead, the plurality of battery cells are connected in series through a metal connecting sheet, the outer shell comprises two end plates arranged symmetrically and two side plates arranged symmetrically, the width of a third bending edge is larger than that of a first bending edge and that of a second bending edge, the side plates are fixedly connected with the end plates through rivets, an insulating spacer is arranged between every two battery cells and between the battery cells at the end parts and the end plates, and the four corners of the spacer and the four corners of the battery cells are limited between the first bending edge and the third bending edge. The structure is simple and convenient to assemble, the battery core and the rectangular frame body are more firmly and stably assembled, the manufacturing is more convenient, the manufacturing cost is lower, and the assembled parts are more convenient to transport.
Description
Technical Field
The invention relates to the technical field of battery modules, in particular to a lithium battery module for a forklift.
Background
At present, lithium battery modules for industrial vehicles are generally arranged in a case shell directly assembled by a plurality of battery cores, the assembling process is complex, and the risks of ignition and short circuit are easy to occur.
Disclosure of Invention
The invention aims to solve the defect that a lithium battery module in the prior art is inconvenient to assemble, and provides a lithium battery module for a forklift.
In order to achieve the purpose, the invention adopts the following technical scheme:
a lithium battery module for a forklift comprises an outer shell and a plurality of electric cores arranged in a row, wherein the electric cores are packaged together through the outer shell, the electric cores are connected with a collection terminal female head through a lead, the electric cores are connected in series through a metal connecting sheet, the outer shell comprises two end plates arranged symmetrically and two side plates arranged symmetrically, the two end plates and the two side plates form a rectangular frame body, the electric cores are limited in the rectangular frame body, four corners of the side plates are respectively provided with a notch, the left and right sides of the side plates are integrally formed with a second bending edge towards the electric core direction, the upper ends of the side plates are integrally formed with a first bending edge towards the electric core direction, the lower ends of the side plates are integrally formed with a third bending edge towards the electric core direction, the width of the third bending edge is larger than that of the first bending edge and that of the second bending edge, the left and right sides of the side plates are positioned in the vertical, the both sides that the end plate is close to the side board are seted up with first rivet hole just right second rivet hole, the side board passes through rivet and end plate rigid coupling, all is equipped with an insulating spacer between per two electric cores and between the electric core of tip and the end plate, the spacer four corners and the four corners of electric core are all spacing between first bending edge and third bending edge.
The metal connecting sheet connects the positive electrode and the negative electrode of the adjacent electric core through laser welding, and the middle part of the metal connecting sheet is bent to form a U-shaped groove with an upward opening.
The spacer comprises a quadrilateral frame, a first lug boss is integrally formed in the middle of the top of the quadrilateral frame, second lug bosses are integrally formed on two sides of the top of the quadrilateral frame, the metal connecting sheet is located at two ends of the U-shaped groove and provided with openings, and the openings are clamped at the end portions of the first lug boss and the second lug boss.
And the metal connecting sheet is fixedly connected with an information acquisition column.
The lithium battery module further comprises an insulating partition board, the partition board is laid above the battery core, a third protruding portion is integrally formed at the top of one side, away from the first protruding portion, of the second protruding portion, a bayonet with an opening facing the first protruding portion is arranged between the third protruding portion and the second protruding portion, and the partition board is supported at the top of the first protruding portion and the top of the second protruding portion and clamped in the bayonet.
The utility model discloses a battery lead collection terminal, including the baffle, the baffle is provided with through wires hole on, the through wires hole includes round hole and the rectangular hole that communicates with the round hole, the baffle outside is arranged in to the female head of collection terminal, the wire between female head of collection terminal and the electricity core runs through the through wires hole.
It is a plurality of electric core series connection forms the electric core group, and the through-hole has been seted up to the metallic interconnect piece that is located on the positive negative pole of electric core group, the fixing base is installed with the position that the metallic interconnect piece on the positive negative pole of electric core group corresponds to the end plate, the screw hole corresponding with the through-hole position is seted up at the fixing base top, the metallic interconnect piece on the positive negative pole of electric core group passes through screw and fixing base rigid coupling.
The joint has the safety cover on the fixing base, the safety cover includes horizontally roof portion, roof portion both ends integrated into one piece has vertical side plate, the draw-in groove has been seted up on the side plate, be equipped with on the fixing base with draw-in groove complex buckle.
The inner side of the side plate part is integrally formed with a rib, and the rib is tightly attached to the outer side face of the fixing seat.
The end plate extrusion molding, the end plate top is equipped with a plurality of passageways of extruding, fixing base bottom integrated into one piece has a plurality of plug portions, plug portion inserts and establishes in partial passageway of extruding, the hoisting hole has been seted up to the end plate lateral surface.
The lithium battery module for the forklift has the beneficial effects that: this device is spacing with electric core in the rectangle framework that forms through side board and end plate, and the rectangle framework is the through-hole form from top to bottom, adopts this kind of structure to assemble simple and convenient, and electric core and rectangle framework's assembly is also more firm stable, and it is more convenient, manufacturing cost is lower to make simultaneously to the spare part transportation of equipment is more convenient.
Drawings
FIG. 1 is a schematic overall perspective view of the present invention;
FIG. 2 is a schematic view of the position structure of the metal connecting sheet of the present invention;
FIG. 3 is a schematic view of a spacer mounting structure of the present invention;
fig. 4 is a schematic diagram of a cell structure according to the present invention;
FIG. 5 is a schematic view of a spacer structure according to the present invention;
FIG. 6 is a schematic view of an assembly structure of the fixing base and the protection cover according to the present invention;
FIG. 7 is a schematic view of the protective cover of the present invention;
FIG. 8 is a schematic view of a fixing base of the present invention;
FIG. 9 is a schematic view of a side panel structure according to the present invention;
FIG. 10 is a schematic view of the end plate construction of the present invention;
FIG. 11 is a schematic view of a metal connecting sheet according to the present invention.
In the figure: the baffle 1, through wires hole 2, gather terminal female head 3, lifting hole 4, fixing base 5, end plate 6, safety cover 7, rivet 8, side board 9, spacer 10, information acquisition post 11, lug 12, first bellying 13, second bellying 14, electric core 15, roof portion 16, rib 17, through-hole 18, side board 19, buckle 20, draw-in groove 21, first flange 22, second flange 23, first rivet hole 24, third flange 25, second rivet hole 26, extrude passageway 27, screw hole 28, plug portion 29, third bellying 30, quadrilateral frame 31, U-shaped groove 32, opening 33.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-11, a lithium battery module for a forklift, comprising an outer casing and a plurality of cells 15 arranged in a row, wherein the plurality of cells 15 are packaged together through the outer casing, the plurality of cells 15 are connected with a collection terminal female head 3 through a lead, the plurality of cells 15 are connected in series through a metal connecting sheet 12, an information collection column 11 is fixedly connected on the metal connecting sheet 12, external components collect battery voltage and temperature information through the information collection column 11, the outer casing comprises two symmetrically arranged end plates 6 and two symmetrically arranged side plates 9, the two end plates 6 and the two side plates 9 form a rectangular frame body, the cells 15 are limited in the rectangular frame body, four corners of the side plates 9 are respectively provided with a notch, the left end and the right end of the side plates 9 are integrally formed with a second bending edge 23 towards the cell 15, the upper end of the side plates 9 is integrally formed with a first bending edge 22, side board 9 lower extreme has third bend 25 to electric core 15 direction integrated into one piece, third bend 25 width is greater than first bend 22, second bend 23 width, both ends are located notched vertical direction and have seted up a plurality of first rivet holes 24 about side board 9, end plate 6 is close to the both sides of side board 9 and has seted up second rivet hole 26 just right with first rivet hole 24, side board 9 passes through rivet 8 and end plate 6 rigid coupling, all be equipped with an insulating spacer 10 between per two electric cores 15 and between the electric core 15 of tip and the end plate 6, spacer 10 four corners and electric core 15's four corners are all spacing between first bend 22 and third bend 25.
Referring to fig. 1-3, single large capacity electric core of this battery module is directly established ties, reduce parallelly connected module whole capacity attenuation risk that brings because single electric core became invalid, more accord with fork truck driving system's operating mode demand, this device is spacing electric core 15 in the rectangle framework that forms through side board 9 and end plate 6, the rectangle framework is the through-hole form from top to bottom, adopt this kind of structure assembly simple and convenient, electric core 15 is also more firm stable with the assembly of rectangle framework, it is more convenient to make simultaneously, manufacturing cost is lower, and the spare part transportation of equipment is more convenient.
The curb plate is plain carbon steel, and two curb plates parcel five electric cores on the whole to pass through rivet connection with the end plate, the curb plate is pasted with fire-retardant PC with electric core contact one side, better plays insulating effect.
Referring to fig. 11, the metal connecting sheet 12 is made of pure aluminum, the metal connecting sheet 12 connects the positive electrode and the negative electrode of the adjacent battery cell 15 by laser welding, a U-shaped groove 32 with an upward opening is bent at the middle of the metal connecting sheet 12, and the U-shaped groove 32 is designed to reduce welding defects caused by dimensional tolerances.
Lithium battery module still includes insulating baffle 1, and baffle 1 is laid in electric core 15 top, and second bellying 14 keeps away from one side top integrated into one piece of first bellying 13 has third bellying 30, is equipped with the bayonet socket of opening towards first bellying 13 between third bellying 30 and the second bellying 14, and baffle 1 supports at first bellying 13, 14 tops of second bellying, and baffle 1 card is established in the bayonet socket. Seted up through wires hole 2 on baffle 1, through wires hole 2 include the round hole and with the rectangular hole of round hole intercommunication, gather the female head 3 of terminal and arrange the baffle 1 outside in, gather the wire between the female head 3 of terminal and electric core 15 and run through wires hole 2.
A plurality of electric cores 15 establish ties and form the electric core group, and the metallic interconnect 12 that is located on the positive negative pole of electric core group has seted up through-hole 18, and fixing base 5 is installed with the position that metallic interconnect 12 on the positive negative pole of electric core group corresponds to end plate 6, and threaded hole 28 corresponding with through-hole 18 position is seted up at the 5 tops of fixing base, and metallic interconnect 12 on the positive negative pole of electric core group passes through screw and fixing base 5 rigid coupling. The fixing base 5 is connected with the protection cover 7 in a clamped mode, the protection cover 7 comprises a horizontal top plate portion 16, vertical side plate portions 19 are integrally formed at two ends of the top plate portion 16, clamping grooves 21 are formed in the side plate portions 19, and clamping buckles 20 matched with the clamping grooves 21 are arranged on the fixing base 5. The rib 17 is integrally formed on the inner side of the side plate part 19, and the rib 17 is tightly attached to the outer side face of the fixing seat 5, so that clamping is more stable, and the protection cover 7 is prevented from overturning. End plate 6 extrusion moulding, end plate 6 top are equipped with a plurality of passageways 27 of extruding, and fixing base 5 bottom integrated into one piece has a plurality of plug portion 29, and plug portion 29 inserts and establishes in the passageway 27 of extruding of part, and hole for hoist 4 has been seted up to end plate 6 lateral surface, adopts this kind of connected mode can be quick with fixing base 5 fixed mounting on end plate 6.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any technical solutions, concepts and designs obtained by equivalent substitutions or changes of the technical solutions and the inventive concepts of the present invention by those skilled in the art within the technical scope of the present invention shall be covered by the scope of the present invention.
Claims (10)
1. A lithium battery module for a forklift comprises a shell and a plurality of electric cores (15) arranged in a row, wherein the electric cores (15) are packaged together through the shell, the electric cores (15) are connected with a female collection terminal (3) through a lead, and the lithium battery module is characterized in that the electric cores (15) are connected in series through metal connecting sheets (12), the shell comprises two symmetrically arranged end plates (6) and two symmetrically arranged side plates (9), the two end plates (6) and the two side plates (9) form a rectangular frame body, the electric cores (15) are limited in the rectangular frame body, four corners of each side plate (9) are respectively provided with a notch, the left end and the right end of each side plate (9) are integrally formed with second bending edges (23) in the direction of the electric cores (15), the upper ends of the side plates (9) are integrally formed with first bending edges (22) in the direction of the electric cores (15), side board (9) lower extreme has third folding flange (25) to electric core (15) direction integrated into one piece, third folding flange (25) width is greater than first folding flange (22), second folding flange (23) width, a plurality of first rivet holes (24) have been seted up to the vertical direction that both ends are located the notched about side board (9), end plate (6) are close to the both sides of side board (9) and seted up second rivet hole (26) just right with first rivet hole (24), side board (9) are through rivet (8) and end plate (6) rigid coupling, all are equipped with an insulating spacer (10) between per two electric cores (15) and between electric core (15) of tip and end plate (6), spacer (10) four corners and the four corners of electric core (15) are spacing all between first folding flange (22) and third folding flange (25).
2. The lithium battery module for the forklift as recited in claim 1, wherein the metal connecting sheet (12) connects the positive electrode and the negative electrode of the adjacent battery cells (15) by laser welding, and a U-shaped groove (32) with an upward opening is bent at the middle part of the metal connecting sheet (12).
3. The lithium battery module for the forklift as recited in claim 2, wherein the spacer (10) comprises a quadrilateral frame (31), a first protruding part (13) is integrally formed in the middle of the top of the quadrilateral frame (31), second protruding parts (14) are integrally formed on two sides of the top of the quadrilateral frame (31), the metal connecting sheet (12) is located at two ends of the U-shaped groove (32) and provided with a notch (33), and the notch (33) is clamped at the end parts of the first protruding part (13) and the second protruding part (14).
4. The lithium battery module for the forklift as recited in claim 1, 2 or 3, wherein the information collecting column (11) is fixed on the metal connecting sheet (12).
5. The lithium battery module for the forklift as recited in claim 3, further comprising an insulating separator (1), wherein the separator (1) is laid above the battery core (15), a third protrusion (30) is integrally formed on the top of one side of the second protrusion (14) away from the first protrusion (13), a bayonet with an opening facing the first protrusion (13) is arranged between the third protrusion (30) and the second protrusion (14), the separator (1) is supported on the tops of the first protrusion (13) and the second protrusion (14), and the separator (1) is arranged in the bayonet in a clamping manner.
6. The lithium battery module for the forklift as recited in claim 5, wherein the partition (1) is provided with a threading hole (2), the threading hole (2) comprises a round hole and a strip hole communicated with the round hole, the collection terminal female head (3) is arranged outside the partition (1), and a wire between the collection terminal female head (3) and the battery core (15) penetrates through the threading hole (2).
7. The lithium battery module for the forklift as recited in claim 1, wherein the plurality of cells (15) are connected in series to form a cell group, the metal connecting sheets (12) on the positive and negative electrodes of the cell group are provided with through holes (18), the fixing seats (5) are installed at positions of the end plates (6) corresponding to the metal connecting sheets (12) on the positive and negative electrodes of the cell group, the top of each fixing seat (5) is provided with threaded holes (28) corresponding to the positions of the through holes (18), and the metal connecting sheets (12) on the positive and negative electrodes of the cell group are fixedly connected with the fixing seats (5) through screws.
8. The lithium battery module for the forklift as recited in claim 7, wherein the fixing base (5) is fastened with a protective cover (7), the protective cover (7) comprises a horizontal top plate portion (16), vertical side plate portions (19) are integrally formed at two ends of the top plate portion (16), a clamping groove (21) is formed in each side plate portion (19), and a buckle (20) matched with the clamping groove (21) is arranged on the fixing base (5).
9. The lithium battery module for the forklift as recited in claim 8, wherein the ribs (17) are integrally formed on the inner side of the side plate portion (19), and the ribs (17) are tightly attached to the outer side surface of the fixing base (5).
10. The lithium battery module for the forklift as recited in claim 8, wherein the end plate (6) is extruded, a plurality of extrusion channels (27) are formed in the top of the end plate (6), a plurality of plug parts (29) are integrally formed in the bottom of the fixing base (5), the plug parts (29) are inserted into part of the extrusion channels (27), and hoisting holes (4) are formed in the outer side surface of the end plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011269182.4A CN112421173A (en) | 2020-11-13 | 2020-11-13 | Lithium battery module for forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011269182.4A CN112421173A (en) | 2020-11-13 | 2020-11-13 | Lithium battery module for forklift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112421173A true CN112421173A (en) | 2021-02-26 |
Family
ID=74831760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011269182.4A Pending CN112421173A (en) | 2020-11-13 | 2020-11-13 | Lithium battery module for forklift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112421173A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016031901A (en) * | 2014-07-30 | 2016-03-07 | 株式会社Ｇｓユアサ | Power storage device |
| CN209087956U (en) * | 2018-12-28 | 2019-07-09 | 贵安新区新特电动汽车工业有限公司 | Battery core protective device and rectangular cell mould group |
| CN209447895U (en) * | 2019-03-22 | 2019-09-27 | 骆驼集团新能源电池有限公司 | A kind of no mould group class aluminum-shell battery mould group |
| CN209607870U (en) * | 2019-05-05 | 2019-11-08 | 江西赣锋电池科技有限公司 | A kind of square power battery mould group |
| CN209626289U (en) * | 2019-04-25 | 2019-11-12 | 江西赣锋电池科技有限公司 | A kind of battery modules |
-
2020
- 2020-11-13 CN CN202011269182.4A patent/CN112421173A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016031901A (en) * | 2014-07-30 | 2016-03-07 | 株式会社Ｇｓユアサ | Power storage device |
| CN209087956U (en) * | 2018-12-28 | 2019-07-09 | 贵安新区新特电动汽车工业有限公司 | Battery core protective device and rectangular cell mould group |
| CN209447895U (en) * | 2019-03-22 | 2019-09-27 | 骆驼集团新能源电池有限公司 | A kind of no mould group class aluminum-shell battery mould group |
| CN209626289U (en) * | 2019-04-25 | 2019-11-12 | 江西赣锋电池科技有限公司 | A kind of battery modules |
| CN209607870U (en) * | 2019-05-05 | 2019-11-08 | 江西赣锋电池科技有限公司 | A kind of square power battery mould group |
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Application publication date: 20210226 |