CN212161962U - Lithium battery monomer and lithium battery pack comprising same - Google Patents

Abstract

The invention relates to a lithium battery monomer which is characterized by comprising a lithium battery, a bimetallic strip, a first insulating strip, a second insulating strip and an elastic strip, wherein the first insulating strip and the second insulating strip are respectively arranged at two ends of the lithium battery, the bimetallic strip and the elastic strip are respectively arranged at two ends of the lithium battery, the first insulating strip is arranged between the lithium battery and the bimetallic strip, a first through hole for the bimetallic strip to extend towards the lithium battery is formed in the first insulating strip, the second insulating strip is arranged between the lithium battery and the elastic strip, and a second through hole for the elastic strip to abut against the lithium battery is formed in the second insulating strip. By adopting the technical scheme, the invention provides the lithium battery monomer, the bimetallic strip is arranged on the lithium battery monomer, and when the lithium battery is in short circuit and the like, the bimetallic strip is automatically disconnected from the lithium battery, so that the protection effect is achieved, and the lithium battery is prevented from being exploded and the like.

Description

Lithium battery monomer and lithium battery pack comprising same

Technical Field

The invention relates to the field of lithium batteries, in particular to a lithium battery monomer and a lithium battery pack comprising the same.

Background

Lithium batteries are a type of battery using a nonaqueous electrolyte solution with lithium metal as a positive/negative electrode material. Because the chemical characteristics of lithium metal are very active, the processing, storage and use of lithium metal have very high requirements on the environment. With the development of science and technology, lithium batteries have become the mainstream nowadays.

Electric vehicles have become a very wide vehicle for people to use in daily transportation. The power source of the existing electric vehicle is a lithium battery, and a plurality of lithium batteries are connected in series or in parallel to form a lithium battery pack. The internal parts of the grouped batteries are easy to extrude, vibrate, have high temperature and even short circuit, so that the batteries can generate heat, smoke, catch fire and even explode, and if a certain lithium battery in the grouped lithium battery pack is damaged, the whole battery pack is damaged, so that property loss is caused; even if the lithium battery is used singly, the phenomena of short circuit and the like also exist, so that the battery is damaged and even explodes, and property loss and personal threat are brought to users.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the defects of the prior art, the invention provides a lithium battery monomer, wherein a bimetallic strip is arranged on the lithium battery monomer, and when the lithium battery is in short circuit and the like, the bimetallic strip is automatically disconnected with the lithium battery, so that the protection effect is achieved, and the lithium battery is prevented from being exploded and the like.

The technical scheme of the invention is as follows: the utility model provides a lithium battery cell, its characterized in that, lithium battery cell includes lithium cell, bimetallic strip, first insulation piece, second insulating piece and flexure strip, first insulation piece and second insulating piece set up the both ends at the lithium cell respectively, bimetallic strip and flexure strip set up the both ends at the lithium cell respectively, first insulation piece sets up between lithium cell and bimetallic strip, and is equipped with the first through-hole that supplies the bimetallic strip to extend to the lithium cell direction on the first insulation piece, the second insulating piece sets up between lithium cell and flexure strip, and is equipped with the second through-hole that supplies flexure strip and lithium cell inconsistent on the second insulating piece.

Adopt above-mentioned technical scheme, be equipped with the bimetallic strip on this lithium cell monomer, under the normal use state, the switch-on of bimetallic strip and lithium cell contact realization circuit, and take place short circuit or high temperature state at the circuit under, the bimetallic strip can be opened by automatic bullet, separately realize the disconnection of circuit with the lithium cell, make the lithium cell use safer like this, first insulation piece and second insulating piece set up the both ends at the lithium cell, each insulating piece can play insulating effect, first through-hole makes the bimetallic strip with the setting of second through-hole, the flexure strip passes corresponding through-hole and lithium cell contact, the flexure strip can play compressing tightly effect and electrically conductive effect to the lithium cell.

The other technical scheme of the invention is as follows: the utility model provides a lithium cell group containing lithium cell monomer, lithium cell group includes a plurality of rows of lithium cell unit, and each lithium cell unit comprises the lithium cell monomer that a plurality of set up side by side, through connection structure interconnect between two adjacent rows of lithium cell units.

Adopt the aforesaid further setting, lithium battery unit is constituteed to a plurality of lithium battery monomer, constitute lithium cell group by a plurality of lithium battery unit again, can be used for under the condition that needs a plurality of lithium battery power supplies like this, same each lithium battery monomer all has bimetallic strip, under the normal use condition, bimetallic strip and lithium cell contact realize the switch-on of circuit, and take place short circuit or high temperature state at the circuit under, bimetallic strip can bounce automatically, separately realize the disconnection of circuit with the lithium cell, make the lithium cell use safer like this, and in the middle of the group's lithium cell group, if one of them lithium battery monomer damages, bimetallic strip rather than corresponding will separate with the lithium cell, just so can not cause the lithium cell of whole group to all damage because of the damage of one of them lithium cell, it is safer.

The invention further comprises the following steps: the connecting structure comprises a first conducting strip and a second conducting strip which are arranged at two ends of a lithium battery monomer, the first conducting strip comprises a first male plug and a first female plug, the second conducting strip comprises a second male plug and a second female plug, the first male plug is connected with the first female plug between two adjacent rows of lithium battery units, the second female plug is connected with the second male plug to achieve circuit communication, the first conducting strip is arranged on one side, away from the first insulating strip, of the bimetallic strip, the second conducting strip is arranged on one side, away from one side of the lithium battery, of the second insulating strip, and the elastic strip is arranged on the second conducting strip and is abutted to the lithium battery in direction.

Adopt the aforesaid to further set up again, realize the connection of two adjacent rows of lithium cell units through connection structure, all be equipped with a first conducting strip and second conducting strip on every lithium cell monomer, the upper end of lithium cell is connected with first female plug interconnect realization two adjacent rows of lithium cell units through the first public plug on each first conducting strip, the lower extreme of lithium cell realizes two adjacent rows of lithium cell unit's connection through the public plug of second on each second conducting strip and the female plug interconnect of second, through the connection of public plug and female plug, it is more convenient, simple structure simultaneously, simple to operate.

The invention further provides that: the lithium battery mounting structure comprises a lithium battery and is characterized by further comprising a mounting seat for mounting the lithium battery, wherein the mounting seat comprises a first mounting seat and a second mounting seat which are arranged at two ends of the lithium battery, the first mounting seat comprises a plurality of first mounting units which can be mutually assembled, each first mounting unit comprises a plurality of first mounting monomers, the second mounting seat comprises a plurality of second mounting units which can be mutually assembled, each second mounting unit comprises a plurality of second mounting monomers, the first mounting monomers and the second mounting monomers correspond to each other one to form a mounting space for the lithium battery monomers to be mounted, a first fixing piece is arranged between the adjacent first mounting monomers, a second fixing piece is arranged between the adjacent second mounting monomers, a mounting column is arranged between the first mounting seat and the second mounting seat, the first fixing pieces and the second fixing pieces are connected with the corresponding mounting columns, a first through groove is arranged on each first mounting monomer corresponding to the first position, first public plug and first female plug all extend to first logical inslot and interconnect, correspond the second conducting strip position on each second installation monomer and be equipped with the second and lead to the groove, and public plug of second and female plug of second all extend to the second and lead to inslot and interconnect.

By adopting the still further arrangement, the adjacent first installation single bodies and the adjacent second installation single bodies are respectively assembled and fixed through the first fixing part and the second fixing part, and are respectively connected with the first fixing part and the second fixing part through the installation columns arranged between the first installation seat and the second installation seat, so that the assembled first installation single bodies and the assembled second installation single bodies are fixed to form an assembly frame for installing the lithium battery, the structure is simple, the operation is convenient, the assembly connection among the installation single bodies is convenient, the assembly and disassembly of the lithium battery single bodies on one installation single body are convenient, the assembly and disassembly can be increased or reduced according to the use requirements of the lithium battery single bodies, the first male plug and the first female plug extend into the first through groove and are connected with each other, the second male plug and the second female plug extend into the second through groove and are connected with each other, so that the adjacent two installation single bodies can be connected, the male plug and the female plug can be protected from being exposed, and meanwhile, the integral mounting base can be smaller and more compact, and the space is saved.

Still further arrangements of the invention are: the first hole monomer on each first installation monomer all is equipped with first hole monomer, and the first hole monomer on the adjacent first installation monomer can make up into a first mounting hole, and the free periphery of each second installation all is equipped with second hole monomer, and the second hole monomer on the adjacent second installation monomer can make up into a second mounting hole, first mounting install in the first mounting hole that corresponds, the second mounting is installed in the second mounting hole that corresponds, erection column one end insert in the first mounting hole that corresponds be connected with first mounting, the erection column other end inserts in the second mounting hole that corresponds and is connected with the second mounting.

Adopt above-mentioned further setting again, first hole monomer and the free machine-shaping in second hole convenient, two first hole monomer combinations of being convenient for form and supply first mounting hole, two second hole monomer combinations of first mounting and erection column male second mounting hole that supply second mounting and erection column male.

Still further arrangements of the invention are: each first installation monomer is provided with a first insertion block and a first notch for the first insertion block to insert, the first insertion block and the first notch are respectively positioned on the side edge of the first installation monomer, the second installation monomer is provided with a second insertion block and a second notch for the second insertion block to insert, and the second insertion block and the second notch are respectively positioned on the side edge of the second installation monomer.

Adopt above-mentioned still further setting, through the cooperation of inserted block and notch, can be to the direction of two adjacent installation monomers when assembling to avoid the hole monomer on two adjacent installation monomers to misplace when assembling, can't form the mounting hole, and can restrict two adjacent installation monomers and assemble the ascending fixed of direction perpendicularly.

Still further arrangements of the invention are: all be equipped with first mounting groove on each first installation monomer, all be equipped with the second mounting groove on each second installation monomer, each first mounting groove sets up with second mounting groove one-to-one, and the free both ends of lithium cell are inserted and are established in first mounting groove and second mounting groove, are equipped with first trip between the two adjacent first mounting grooves, it is equipped with first draw-in groove to correspond on the first insulation piece, and first trip card is established and is realized first insulation piece and first installation free fixed connection in the first draw-in groove that corresponds, is equipped with the second trip between the two adjacent second mounting grooves, correspond on the second insulation piece and be equipped with the second draw-in groove, the second trip card is established and is realized second insulation piece and second installation free fixed connection in the second draw-in groove that corresponds.

Adopt the aforesaid to set up still further, fix first insulating piece on first mount pad through the mode that the buckle is connected, the second insulating piece is fixed to be set up on the second mount pad, sets up like this when installing the mounting, can guarantee that bimetallic strip and conducting strip in the lithium cell monomer can not drop, and is more stable.

Drawings

FIG. 1 is a schematic structural diagram of a lithium battery cell according to an embodiment of the present invention;

FIG. 2 is another side view of a lithium battery cell in an embodiment of the invention;

FIG. 3 is a schematic view of a mounting base in an embodiment of the invention;

FIG. 4 is a block diagram of a first mounting unit and a second mounting unit in an embodiment of the invention;

FIG. 5 is a schematic diagram of a lithium battery pack according to an embodiment of the present invention;

FIG. 6 is a schematic view of a connection structure in an embodiment of the present invention;

FIG. 7 is a schematic view of the installation of the first insulating sheet in the embodiment of the present invention;

FIG. 8 is a schematic view of a second insulating sheet installed in accordance with an embodiment of the present invention;

FIG. 9 is an enlarged view of portion A of FIG. 5;

FIG. 10 is an enlarged view of portion B of FIG. 6;

FIG. 11 is an enlarged view of portion C of FIG. 7;

FIG. 12 is an enlarged view of portion D of FIG. 8;

FIG. 13 is a schematic view of a first mounting unit in an embodiment of the invention;

fig. 14 is a schematic view of a second mounting unit in an embodiment of the invention.

Detailed Description

As shown in fig. 1 to 14, a lithium battery cell 1, as shown in fig. 1 and 2, the lithium battery cell 1 includes a lithium battery 11, a bi-metal strip 12, a first insulating strip 13, a second insulating strip 14 and an elastic strip 15, the first insulating strip 13 and the second insulating strip 14 are respectively disposed at two ends of the lithium battery 11, the bi-metal strip 12 and the elastic strip 15 are respectively disposed at two ends of the lithium battery 11, the first insulating strip 13 is disposed between the lithium battery 11 and the bi-metal strip 12, a first through hole 131 is disposed on the first insulating strip 13 for the bi-metal strip 12 to extend toward the lithium battery 11, the second insulating strip 14 is disposed between the lithium battery 11 and the elastic strip 15, a second through hole is disposed on the second insulating strip 14 for the elastic strip 15 to be in contact with the lithium battery 11, and the bi-metal strip 12, the first insulating strip 13 and the second insulating strip 14 are all disposed in a hollow circular shape, the bimetallic strip 12 is provided with a spring plate, the circular part of the bimetallic strip 12 is attached to the first insulating strip 13, the spring plate passes through the first through hole to be contacted with the lithium battery 11, the bimetallic strip 12 is arranged on the lithium battery monomer 1, the bimetallic strip 12 is contacted with the lithium battery 11 to realize the connection of a circuit in a normal use state, the bimetallic strip 12 can automatically bounce open to separate from the lithium battery 11 to realize the disconnection of the circuit in a short circuit or high temperature state, so that the lithium battery is safer to use, the first insulating strip 13 and the second insulating strip 14 are arranged at two ends of the lithium battery 11, each insulating strip can play an insulating role, the arrangement of the first through hole 131 and the second through hole 141 enables the bimetallic strip 12 and the elastic strip 15 to pass through corresponding through holes to be contacted with the lithium battery 11, the elastic strip 15 can play a pressing role and a conductive role for the lithium battery 11, so that, is not easy to loosen.

A lithium battery pack containing lithium battery cells is disclosed, as shown in FIG. 5, the lithium battery pack 2 comprises a plurality of rows of lithium battery cells 21, each lithium battery cell 21 is composed of a plurality of lithium battery cells 1 arranged side by side, two adjacent rows of lithium battery cells 21 are connected with each other through a connecting structure 3, the plurality of lithium battery cells 1 form the lithium battery cells 21, and then the plurality of lithium battery cells 21 form the lithium battery pack 2, so that under the condition that power supply of a plurality of lithium batteries 11 is needed, the same each lithium battery cell 1 is provided with a bimetallic strip 12, under the normal use condition, the bimetallic strip 12 is contacted with the lithium batteries 11 to realize the connection of a circuit, and under the condition that the circuit is short-circuited or in a high temperature condition, the bimetallic strip 12 can automatically bounce to separate from the lithium batteries 11 to realize the disconnection of the circuit, so that the lithium batteries 11 are safer to use, if one of the lithium battery cells 1 is damaged, the bimetallic strip 12 corresponding to the damaged lithium battery cell is separated from the lithium battery cell 11, so that the damage of the whole group of lithium battery cells 11 caused by the damage of one of the lithium battery cells 11 is avoided, and the safety is improved.

Wherein, the connection structure 3 includes a first conductive sheet 31 and a second conductive sheet 32 disposed at two ends of the lithium battery cell 1, the first conductive sheet 31 and the second conductive sheet 32 are disposed in a hollow circular shape, the first conductive sheet 31 includes a first male plug 311 and a first female plug 312, the first male plug 311 and the first female plug 312 are symmetrically disposed at two sides of the first conductive sheet 31, the elastic sheet 15 is disposed on the first conductive sheet 31 and penetrates through the hollow portion and the first through hole 131 on the first insulating sheet 13 to contact the lithium battery 11, and compresses the lithium battery 11, the second conductive sheet 32 includes a second male plug 321 and a second female plug 322, the second male plug 321 and the second female plug 322 are also symmetrically disposed at two sides of the second conductive sheet 32, the connection between the first male plug 311 and the first female plug 312 and the connection between two adjacent rows of lithium battery cells 21 realize the circuit communication, first conducting strip 31 sets up the one side of keeping away from first insulating strip 13 at bimetallic strip 12, second conducting strip 32 sets up the one side of keeping away from lithium cell 11 at second insulating strip 14, realize the connection of two adjacent rows of lithium cell 21 through connection structure 3, all be equipped with a first conducting strip 31 and second conducting strip 32 on every lithium cell 1, the connection of two adjacent rows of lithium cell 21 is realized through first public plug 311 and first female plug 312 interconnect on each first conducting strip 31 in the upper end of lithium cell 11, the connection of two adjacent rows of lithium cell 21 is realized through the public plug 321 of second on each second conducting strip 32 and the female plug 322 interconnect of second to the lower extreme of lithium cell 11, through the connection of public plug and female plug, it is more convenient, simple structure simultaneously, and convenient installation.

In the embodiment of the present invention, the lithium battery pack further includes a mounting seat for mounting the lithium battery 11, the mounting seat includes a first mounting seat 4 and a second mounting seat 5 disposed at two ends of the lithium battery 11, the first mounting seat 4 includes a plurality of first mounting units 41 capable of being assembled with each other, each first mounting unit 41 includes a plurality of first mounting units 410, the second mounting seat 5 includes a plurality of second mounting units 51 capable of being assembled with each other, each second mounting unit 51 includes a plurality of second mounting units 510, the first mounting units 410 and the second mounting units 510 correspond to each other to form a mounting space for mounting the lithium battery unit 1, a first fixing member is disposed between adjacent first mounting units 410, a second fixing member is disposed between adjacent second mounting units 510, the first fixing member and the second fixing member are disposed by using screws, a mounting post 6 is disposed between the first mounting seat 41 and the second mounting seat 51, the first fixing member and the second fixing member are connected with the corresponding mounting posts 6, a first through groove 411 is arranged on each first mounting unit 410 corresponding to the position of the first conducting strip 31, the first male plug 311 and the first female plug 312 extend into the first through groove 411 and are connected with each other, a second through groove 511 is arranged on each second mounting unit 510 corresponding to the position of the second conducting strip 32, the second male plug 321 and the second female plug 322 extend into the second through groove 511 and are connected with each other, the adjacent first mounting unit 410 and the adjacent second mounting unit 510 are respectively assembled and fixed through the first fixing member and the second fixing member, and the mounting posts 6 arranged between the first mounting seat 41 and the second mounting seat 51 are respectively connected with the first fixing member and the second fixing member, so that the assembled first mounting unit 410 and the assembled second mounting unit 510 are fixed to form an assembled frame for the lithium battery 11, simple structure, and convenient for operation, assemble the connection between each installation unit, be convenient for one of them installation monomer go up lithium battery cell 1's dismouting, and can increase or reduce according to lithium battery cell 1 user demand, first public plug 311 and first female plug 312 extend to first logical groove 411 in, and interconnect, second public plug 321 extends to second logical groove 511 with second female plug 322 in, and interconnect, it both can connect two adjacent installation monomers to set up like this, can protect again publicly, female plug, make it not expose, can also make holistic mount pad smaller and more exquisite simultaneously, save space.

Wherein, each first installation monomer 410 periphery all is equipped with first hole monomer 412, and first hole monomer 412 on the adjacent first installation monomer 410 can make up into a first mounting hole 42, and each second installation monomer 510 periphery all is equipped with second hole monomer 512, and second hole monomer 512 on the adjacent second installation monomer 510 can make up into a second mounting hole 52, first mounting install in corresponding first mounting hole 42, the second mounting is installed in corresponding second mounting hole 52, erection column 6 one end insert corresponding first mounting hole 42 in be connected with first mounting, the erection column 6 other end inserts corresponding second mounting hole 52 in be connected with the second mounting, first hole monomer 412 with second hole monomer 512's processing shaping mounting convenient, be convenient for two first hole monomers 412 make up and form and supply first mounting hole 42 that first and erection column 6 inserted, The two second hole monomers 512 combine to form a second mounting hole 52 for the second fixing member and the mounting post 6 to be inserted into.

Wherein, first installation monomer 410 on be equipped with first inserted block 413 and supply first inserted block 413 to insert the first notch 414 of establishing, first inserted block 413 and first notch 414 be located the side of first installation monomer 410 respectively second installation monomer 510 on be equipped with second inserted block 513 and supply second inserted block 513 to insert the second notch 514 of establishing, second inserted block 513 and second notch 514 branch be located the side of second installation monomer 510, through the cooperation of inserted block and notch, can be to the direction of two adjacent installation monomers when assembling to avoid the hole monomer on two adjacent installation monomers to misplace when assembling, can't form the mounting hole, and can restrict two adjacent installation monomers and assemble the ascending fixed of orientation perpendicularly. When the first installation seat 4 is assembled, the first insertion block 413 of the first installation single body 410 is inserted into the first notch 414 of the adjacent first installation single body 410 to prevent the adjacent two first installation single bodies 410 from being separated in the vertical assembling direction, the two first hole single bodies 412 are combined to form a first installation hole 42, the second insertion block 513 of the second installation single body 510 is inserted into the second notch 514 of the adjacent second installation single body 510 to prevent the adjacent two second installation single bodies 510 from being separated in the horizontal direction, the two second hole single bodies 512 are combined to form a second installation hole 52, the installation post 6 is inserted into the corresponding first installation hole 42 and the corresponding second installation hole 52, the first fixing piece is inserted into the first installation hole 42, the head of the first fixing piece abuts against the first installation unit 41, the second fixing piece is inserted into the second installation hole 52, and the second head abuts against the second installation single body 510, thereby it is fixed with second installation monomer 510 to assemble first installation monomer 410 after will assembling, forms the frame of assembling that supplies the lithium cell to install, simple structure, convenient operation assembles the connection between each installation monomer, and the dismouting of lithium cell monomer 1 on one of them installation monomer of being convenient for to can increase or reduce according to lithium cell monomer 1 user demand.

In the embodiment of the present invention, each first mounting unit 410 is provided with a first mounting groove 415, each second mounting unit 510 is provided with a second mounting groove 515, each first mounting groove 415 and each second mounting groove 515 are arranged in a one-to-one correspondence, two ends of the lithium battery unit 1 are inserted into the first mounting groove 415 and the second mounting groove 515, a first hook 7 is arranged between two adjacent first mounting grooves 415, the first insulating sheet 13 is correspondingly provided with a first clamping groove 132, the first hook 7 is clamped in the corresponding first clamping groove 132 to fixedly connect the first insulating sheet 12 and the first mounting unit 410, a second hook 8 is arranged between two adjacent second mounting grooves 515, the second insulating sheet 14 is correspondingly provided with a second clamping groove 142, the second hook 8 is clamped in the corresponding second clamping groove 142 to fixedly connect the second insulating sheet 14 and the second mounting unit 510, the first insulating sheet 13 is fixed on the first mounting seat 4 by means of fastening connection, the second insulating sheet 14 is fixedly arranged on the second mounting seat 5, so that when the mounting seat is fixedly arranged, the bimetallic strip 12 and the conducting strips in the lithium battery cell 1 can be prevented from falling off and separated from the lithium battery 11, and the lithium battery pack 2 is more stable in use.

Claims (7)

1. The utility model provides a lithium battery cell, its characterized in that, lithium battery cell includes lithium cell, bimetallic strip, first insulation piece, second insulating piece and flexure strip, first insulation piece and second insulating piece set up the both ends at the lithium cell respectively, bimetallic strip and flexure strip set up the both ends at the lithium cell respectively, first insulation piece sets up between lithium cell and bimetallic strip, and is equipped with the first through-hole that supplies the bimetallic strip to extend to the lithium cell direction on the first insulation piece, the second insulating piece sets up between lithium cell and flexure strip, and is equipped with the second through-hole that supplies flexure strip and lithium cell inconsistent on the second insulating piece.

2. A lithium battery pack comprising the lithium battery cells according to claim 1, wherein the lithium battery pack comprises a plurality of rows of lithium battery cells, each lithium battery cell comprises a plurality of lithium battery cells arranged side by side, and two adjacent rows of lithium battery cells are connected with each other through a connecting structure.

3. The lithium battery pack of the lithium battery cell as claimed in claim 2, wherein the connection structure comprises a first conductive plate and a second conductive plate disposed at two ends of the lithium battery cell, the first conductive plate comprises a first male plug and a first female plug, the second conductive plate comprises a second male plug and a second female plug, the first male plug is connected with the first female plug between two adjacent rows of lithium battery cells, the second female plug is connected with the second male plug to achieve the circuit connection, the first conductive plate is disposed on the side of the bimetallic strip away from the first insulating plate, the second conductive plate is disposed on the side of the second insulating plate away from the lithium battery, and the elastic plate is disposed on the second conductive plate and presses against the lithium battery.

4. The lithium battery pack of lithium battery cells as claimed in claim 3, further comprising a mounting seat for mounting the lithium battery, wherein the mounting seat comprises a first mounting seat and a second mounting seat disposed at two ends of the lithium battery, the first mounting seat comprises a plurality of first mounting units assembled with each other, each first mounting unit comprises a plurality of first mounting cells, the second mounting seat comprises a plurality of second mounting units assembled with each other, each second mounting unit comprises a plurality of second mounting cells, the first mounting cells and the second mounting cells correspond to each other one by one to form a mounting space for the lithium battery cells, a first fixing member is disposed between adjacent first mounting cells, a second fixing member is disposed between adjacent second mounting cells, a mounting post is disposed between the first mounting seat and the second mounting seat, first mounting, second mounting and the erection column that corresponds be connected, correspond first conducting strip position on each first installation monomer and be equipped with first logical groove, first public plug and first female plug all extend to first logical inslot and interconnect, correspond second conducting strip position on each second installation monomer and be equipped with the second and lead to the groove, public plug of second and the female plug of second all extend to the second and lead to inslot and interconnect.

5. The lithium battery pack of lithium battery cells as claimed in claim 4, wherein each first mounting cell has a first hole cell at its periphery, the first hole cells of adjacent first mounting cells can be combined into a first mounting hole, each second mounting cell has a second hole cell at its periphery, the second hole cells of adjacent second mounting cells can be combined into a second mounting hole, the first fixing members are mounted in the corresponding first mounting holes, the second fixing members are mounted in the corresponding second mounting holes, one end of each mounting post is inserted into the corresponding first mounting holes and connected to the first fixing members, and the other end of each mounting post is inserted into the corresponding second mounting holes and connected to the second fixing members.

6. The lithium battery pack of lithium battery cells as claimed in claim 5, wherein each first mounting cell is provided with a first insertion block and a first notch for the insertion of the first insertion block, the first insertion block and the first notch are respectively located at the side of the first mounting cell, the second mounting cell is provided with a second insertion block and a second notch for the insertion of the second insertion block, and the second insertion block and the second notch are respectively located at the side of the second mounting cell.

7. The lithium battery pack of claim 6, wherein each first mounting unit has a first mounting groove, each second mounting unit has a second mounting groove, each first mounting groove and the second mounting groove are disposed in a one-to-one correspondence, two ends of each lithium battery unit are inserted into the first mounting groove and the second mounting groove, a first hook is disposed between two adjacent first mounting grooves, a first slot is correspondingly disposed on each first insulating sheet, the first hook is clamped in the corresponding first slot to fixedly connect the first insulating sheet and the first mounting unit, a second hook is disposed between two adjacent second mounting grooves, a second slot is correspondingly disposed on the second insulating sheet, and the second hook is clamped in the corresponding second slot to fixedly connect the second insulating sheet and the second mounting unit.

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