CN210074000U

CN210074000U - Lithium battery pack

Info

Publication number: CN210074000U
Application number: CN201920957518.2U
Authority: CN
Inventors: 陶纪明; 杨亚男; 陆立孟
Original assignee: Ningbo Ngp Industry Co ltd
Current assignee: Ningbo Ruilin Machinery Technology Co.,Ltd.
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2020-02-14
Anticipated expiration: 2029-06-24

Abstract

The utility model discloses a lithium battery pack relates to the charging device field, has solved the problem that need change lithium battery pack for the same power consumption voltage of matching with consumer, and the technical scheme main points are: the lithium battery comprises a plurality of lithium battery bodies, wherein connecting ports are formed in one side of each lithium battery body, metal sheets are arranged at the connecting ports, mounting holes are formed in the centers of two ends of each metal sheet, through holes aligned with the mounting holes are formed in the lithium battery bodies, and copper plates used for connecting the lithium battery bodies in series are arranged on one side, away from the lithium battery bodies, of each metal sheet; the utility model discloses a lithium battery pack can select the lithium cell body quantity of establishing ties according to the power consumption voltage of current consumer, easy operation uses in a flexible way.

Description

Lithium battery pack

Technical Field

The utility model relates to a charging device field, in particular to lithium battery pack.

Background

A lithium ion battery is a secondary battery (rechargeable battery) that mainly operates by movement of lithium ions between a positive electrode and a negative electrode. During charging and discharging, Li + is inserted and extracted back and forth between two electrodes: during charging, Li + is extracted from the positive electrode and is inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge.

Lithium ion battery all is used for in the new forms of energy electric motor car with battery module (battery package), and power battery module is established ties by a plurality of monomer electric cores and connects in parallel the equipment and form, connects between the monomer electric core and consolidates, requires that the utmost point post contact resistance of connection piece and battery is little, anti-vibration, firm degree height.

When the kind, the model of consumer are different, need match the lithium cell package that accords with consumer's power consumption voltage. However, the output voltage of the lithium battery pack is fixed, and at the moment, only the lithium battery pack of which the output voltage is consistent with the power utilization voltage of the electric equipment can be replaced, so that the operation is troublesome, and an improved space is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lithium cell package can select the lithium cell body quantity of establishing ties according to the power consumption voltage of current consumer, easy operation uses in a flexible way.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a lithium battery pack, includes a plurality of lithium cell body, the connector has all been seted up to one side of lithium cell body, connector department all is equipped with the sheetmetal, the mounting hole has all been seted up to the both ends center department of sheetmetal, still set up the through-hole of aligning with the mounting hole on the lithium cell body, the sheetmetal is kept away from one side of lithium cell body is equipped with the copper that is used for establishing ties a plurality of lithium cell bodies.

Through adopting above-mentioned technical scheme, through the setting of sheetmetal, draw lithium cell body just, the negative pole, the rethread is connected in the copper of sheetmetal, realizes the series connection of a plurality of lithium cell body, like this alright select the lithium cell body quantity of series connection according to the consumer voltage of current consumer, easy operation uses in a flexible way.

The utility model discloses further set up to: the center department of sheetmetal all sets up the first connecting hole that supplies the bolt to wear to establish, set up a plurality of second connecting holes of aiming at with first connecting hole on the copper.

Through adopting above-mentioned technical scheme, realize through the bolt that the copper is connected with the sheetmetal on a plurality of lithium cell body, and then just realized the series connection of a plurality of lithium cell body through the copper, easy operation.

The utility model discloses further set up to: one side of the metal sheet, which is far away from the copper plate, is provided with a first electrode end and a second electrode end.

By adopting the technical scheme, the arrangement of the first electrode end and the second electrode end on the metal sheet facilitates leading out the anode and the cathode of the lithium battery body to the metal sheet.

The utility model discloses further set up to: the first electrode end and the second electrode end are mounted on the metal sheet through first screws.

Through adopting above-mentioned technical scheme, install first electrode end and second electrode end on the sheetmetal through the screw, easy operation, and the installation is firm.

The utility model discloses further set up to: the lithium battery body comprises an upper shell, a lower shell and a plurality of single battery cells, wherein the upper shell and the lower shell are both provided with cushion pads.

Through adopting above-mentioned technical scheme, the setting of blotter on last casing and the lower casing for monomer electricity core and last casing and lower casing not direct contact make lithium cell monomer have certain anti-vibration's ability at removal in-process or during operation.

The utility model discloses further set up to: the battery cell structure is characterized in that supports are arranged in cavities of the upper shell and the lower shell, a plurality of positioning holes are formed in the supports, and the battery cells are placed in the positioning holes.

Through adopting above-mentioned technical scheme, set up the support of a plurality of locating holes, play the positioning action to placing the monomer electricity core in the casing cavity for monomer electricity core anti-vibration, firm degree height.

The utility model discloses further set up to: the support is provided with at least two first thread cylinders, the upper shell and the lower shell are both provided with second thread cylinders aligned with the first thread cylinders, and second screws are installed in the second thread cylinders in a threaded mode.

Through adopting above-mentioned technical scheme, the cooperation of first screw thread section of thick bamboo and second screw thread section of thick bamboo realizes that the support mounting is simple in the casing cavity down.

The utility model discloses further set up to: a lower connecting cylinder with an internal thread is further formed in the inner cavity of the lower shell in a protruding mode, an upper connecting cylinder with an internal thread is further formed in the inner cavity of the upper shell in a protruding mode, and the upper connecting cylinder is aligned to the lower connecting cylinder.

Through adopting above-mentioned technical scheme, the cooperation of the lower connecting cylinder that has the internal thread and the last connecting cylinder that has the internal thread realizes under the installation condition of casing and lower casing, reduces the wearing and tearing of second screw to last casing and lower casing.

The utility model discloses further set up to: a first lead-out hole, a second lead-out hole and a third lead-out hole are formed in the other side of the lithium battery body, a first lead-out electrode is led out of the first lead-out hole, a second lead-out electrode is led out of the second lead-out hole, and a third lead-out electrode is led out of the third lead-out hole; the third extraction electrode and the second extraction electrode are connected with an external mains supply when the lithium battery body needs to be charged, and the second extraction electrode and the first extraction electrode are connected with external equipment when the lithium battery body discharges.

Through adopting above-mentioned technical scheme, the setting of first extraction pole, second extraction pole, third extraction pole is convenient for will give lithium cell body as required and charge or lithium cell body discharges.

To sum up, the utility model discloses following beneficial effect has:

through the setting of sheetmetal, draw out lithium cell body just, the negative pole, the rethread is connected in the copper of sheetmetal, realizes the series connection of a plurality of lithium cell body, like this alright select the lithium cell body quantity of series connection according to the consumer voltage of current consumer, easy operation uses in a flexible way.

Drawings

Fig. 1 is a schematic structural diagram of a lithium battery pack of the present invention;

fig. 2 is a schematic view of the installation of the copper plate in the lithium battery pack of the present invention;

fig. 3 is an explosion diagram of the upper shell and the lower shell in the lithium battery pack of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is an explosion diagram ii of the upper case and the lower case in the lithium battery pack of the present invention;

fig. 6 is an explosion diagram of the lithium battery body in the lithium battery pack of the present invention.

In the figure, 1, a lithium battery body; 111. an upper housing; 112. a lower housing; 113. a single cell; 2. a connecting port; 3. a metal sheet; 4. mounting holes; 5. a copper plate; 6. a first connection hole; 7. a second connection hole; 8. a first electrode terminal; 9. a second electrode terminal; 10. a cushion pad; 11. a support; 12. positioning holes; 13. a first threaded barrel; 14. a second threaded barrel; 15. a lower connecting cylinder; 16. an upper connecting cylinder; 17. a first extraction electrode; 18. a second extraction electrode; 19. and a third extraction electrode.

Detailed Description

The present invention will be described in further detail with reference to the accompanying fig. 1 to 6.

Referring to fig. 1 and 2, the utility model discloses a lithium battery pack, including a plurality of lithium battery body 1, lithium battery body 1 includes casing 111, casing 112, the monomer electricity core 113 of a plurality of series-parallel, and lithium battery body 1's output voltage size depends on the number of monomer electricity core 113.

Referring to fig. 3 and 4, a rectangular connecting port 2 is formed on one side of the lower housing 112, a rectangular metal sheet 3 is disposed at each connecting port 2, a long side of the metal sheet 3 is larger than a long side of the connecting port 2, and a short side of the metal sheet 3 is larger than a short side of the connecting port 2. Mounting hole 4 has all been seted up in the both ends center department of sheetmetal 3, still sets up the through-hole of aiming at with mounting hole 4 on the lower casing 112, realizes that sheetmetal 3 installs in casing 112 department down through the bolt of wearing to locate mounting hole 4 and through-hole.

Referring to fig. 2 and 4, a copper plate 5 for connecting a plurality of lithium battery bodies 1 in series is arranged on one side of the metal sheet 3 away from the lithium battery bodies 1. The center department of sheetmetal 3 all offers the first connecting hole 6 that supplies the bolt to wear to establish, offers a plurality of second connecting holes 7 that align with first connecting hole 6 on the copper 5. The copper plate 5 is arranged at the metal sheet 3 of the lithium battery body 1 through bolts, so that the series connection of a plurality of lithium battery bodies 1 is realized; the series connection quantity of the lithium battery bodies 1 depends on the quantity of the lithium battery bodies 1 of the connected copper plate 5, so that the quantity of the lithium battery bodies 1 connected in series can be selected according to the power voltage of the current electric equipment, the operation is simple, and the use is flexible.

Referring to fig. 2, a first electrode end 8 and a second electrode end 9 are arranged on one side of the metal sheet 3 away from the copper plate 5. The first electrode terminal 8 and the second electrode terminal 9 are mounted on the metal sheet 3 by a first screw, wherein it is defined that the first electrode terminal 8 may be a positive terminal and the second electrode terminal 9 may be a negative terminal. The other side of the lithium battery body 1 is provided with a first lead-out hole, a second lead-out hole and a third lead-out hole, wherein a first lead-out electrode 17 is led out from the first lead-out hole, a second lead-out electrode 18 is led out from the second lead-out hole, and a third lead-out electrode 19 is led out from the third lead-out hole. The second extraction electrode 18 is defined as a common electrode, when the lithium battery body 1 needs to be charged, the third extraction electrode 19 and the second extraction electrode 18 are connected with an external commercial power, and when the lithium battery body 1 discharges, the second extraction electrode 18 and the first extraction electrode 17 are connected with an external device.

Referring to fig. 5, the upper casing 111 and the lower casing 112 are both provided with the buffer pads 10, so that the single battery cells 113 are not in direct contact with the upper casing 111 and the lower casing 112, and the single lithium battery cells have certain vibration resistance during movement or operation; wherein, the cushion pad 10 can be adhered to the upper case 111 and the lower case 112 by epoxy resin.

Referring to fig. 5 and 6, a support 11 is further disposed in the cavity of the lower casing 112 and the upper casing 111, a plurality of positioning holes 12 are formed in the support 11, and the individual battery cells 113 are placed in the positioning holes 12. The edge of the bracket 11 is provided with at least two first threaded cylinders 13 at equal intervals, the lower shell 112 and the upper shell 111 are provided with second threaded cylinders 14 aligned with the first threaded cylinders 13 in a penetrating manner, the second threaded cylinders 14 are provided with second screws in a threaded manner, and the bracket 11 in the cavity of the upper shell 111 is mounted on the lower shell 112 by the bracket 11 in the cavities of the upper shell 111 and the lower shell 112. Due to the existence of the first threaded cylinder 13 and the second threaded cylinder 14, a gap is formed between the bracket 11 and the cushion pad 10, so that heat dissipation is facilitated; and secondly, the bracket 11 is also provided in the upper case 111. Here, the second screw has a length greater than the first screw.

Referring to fig. 6, a lower connector barrel 15 with internal threads is further formed in the inner cavity of the lower shell 112 in a protruding manner, an upper connector barrel 16 with internal threads is further formed in the inner cavity of the upper shell 111 in a protruding manner, and the upper connector barrel 16 is aligned with the lower connector barrel 15 to realize the installation of the upper shell 111 and the lower shell 112 through bolts.

The above embodiments are only used to describe the technical solutions of the present application in detail, but the above description of the embodiments is only used to help understanding the method and the core idea of the present invention, and should not be construed as limiting the present invention. Those skilled in the art should also appreciate that other modifications and substitutions can be made without departing from the scope of the present disclosure.

Claims

1. The utility model provides a lithium battery pack, includes a plurality of lithium cell body (1), its characterized in that: connector (2) have all been seted up to one side of lithium cell body (1), connector (2) department all is equipped with sheetmetal (3), mounting hole (4) have all been seted up at the both ends center department of sheetmetal (3), still set up the through-hole of aiming at with mounting hole (4) on lithium cell body (1), sheetmetal (3) are kept away from one side of lithium cell body (1) is equipped with copper (5) that are used for establishing ties a plurality of lithium cell bodies (1).

2. A lithium battery pack as claimed in claim 1, characterized in that: the center department of sheetmetal (3) all sets up first connecting hole (6) that supply the bolt to wear to establish, set up a plurality of second connecting holes (7) of aiming at with first connecting hole (6) on copper (5).

3. A lithium battery pack as claimed in claim 1, characterized in that: one side of the metal sheet (3) far away from the copper plate (5) is provided with a first electrode end (8) and a second electrode end (9).

4. A lithium battery pack as claimed in claim 3, characterized in that: the first electrode end (8) and the second electrode end (9) are mounted on the metal sheet (3) through first screws.

5. A lithium battery pack as claimed in claim 1, characterized in that: the lithium battery body (1) comprises an upper shell (111), a lower shell (112) and a plurality of single battery cells (113), wherein the upper shell (111) and the lower shell (112) are both provided with buffer pads (10).

6. A lithium battery pack as claimed in claim 5, characterized in that: the battery cell structure is characterized in that supports (11) are arranged in cavities of the upper shell (111) and the lower shell (112), a plurality of positioning holes (12) are formed in the supports (11), and the single battery cells (113) are placed in the positioning holes (12).

7. A lithium battery pack as claimed in claim 6, characterized in that: the support (11) is provided with at least two first threaded cylinders (13), the upper shell (111) and the lower shell (112) are both provided with second threaded cylinders (14) aligned with the first threaded cylinders (13), and second screws are installed in the second threaded cylinders (14) in a threaded mode.

8. A lithium battery pack as claimed in claim 5, characterized in that: a lower connecting cylinder (15) with an internal thread is further formed in the inner cavity of the lower shell (112) in a protruding mode, an upper connecting cylinder (16) with an internal thread is further formed in the inner cavity of the upper shell (111) in a protruding mode, and the upper connecting cylinder (16) is aligned with the lower connecting cylinder (15).

9. A lithium battery pack as claimed in claim 1, characterized in that: a first lead-out hole, a second lead-out hole and a third lead-out hole are formed in the other side of the lithium battery body (1), a first lead-out electrode (17) is led out of the first lead-out hole, a second lead-out electrode (18) is led out of the second lead-out hole, and a third lead-out electrode (19) is led out of the third lead-out hole; the third extraction electrode (19) and the second extraction electrode (18) are connected with an external commercial power when the lithium battery body (1) needs to be charged, and the second extraction electrode (18) and the first extraction electrode (17) are connected with external equipment when the lithium battery body (1) discharges.