CN215815983U

CN215815983U - Ultralow-temperature square polymer lithium ion battery

Info

Publication number: CN215815983U
Application number: CN202121917797.3U
Authority: CN
Inventors: 刘远见; 刘素国; 李文博; 苏瑞财; 张定卫
Original assignee: Xi'an Yahongtai New Energy Technology Co ltd
Current assignee: Xi'an Yahongtai New Energy Technology Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-02-11
Anticipated expiration: 2031-08-16

Abstract

The utility model discloses an ultralow-temperature square polymer lithium ion battery, and belongs to the technical field of lithium batteries. The utility model provides a square polymer lithium ion battery of ultra-low temperature, includes the inner shell, install electric core in the inner shell, the top of electric core is provided with the wiring board, the upper surface of wiring board is provided with leads electrical pillar, the top of leading electrical pillar is provided with the lead plate, the upper surface of lead plate is provided with the terminal, the outside of inner shell is provided with the shell. The utility model has the advantages that the circuit of the wiring board is independently arranged, the connection operation is convenient and efficient, the wiring board and the lead plate are separately designed, the use is further convenient, and the protection and cold-proof effects are enhanced.

Description

Ultralow-temperature square polymer lithium ion battery

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to an ultralow-temperature square polymer lithium ion battery.

Background

The polymer lithium ion battery has the characteristics of high energy, miniaturization, light weight and the like. The battery with different shapes and capacities can be manufactured by utilizing the ultra-thin characteristic of the battery and matching with the requirements of some products. The square structure is small in installation clearance, stable in placement state and extremely wide in application range.

Currently, special lithium batteries are used in ultra-low temperature environments. The specially designed lithium battery has certain cold resistance, but the installation structure of the lithium battery does not have corresponding effect, so that the cold-proof effect of the lithium battery is influenced. Meanwhile, the connection of the lithium battery pack is in a fixed form, such as lead welding, a connecting seat and the like, and the connection replacement is extremely complicated; the protection effect that possesses is also more general, and the protection effect directly influences the normal life of equipment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that in the prior art, a lithium ion battery lacks cold-resistant protection, the connection mode of a battery pack is fixed, and the change is complicated, and provides an ultralow-temperature square polymer lithium ion battery.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a square polymer lithium ion battery of ultra-low temperature, includes the inner shell, install electric core in the inner shell, the top of electric core is provided with the wiring board, the upper surface of wiring board is provided with leads electrical pillar, the top of leading electrical pillar is provided with the lead plate, the upper surface of lead plate is provided with the terminal, the outside of inner shell is provided with the shell.

In some embodiments, the outer surface of the inner shell defines a first through-hole.

In some embodiments, the four corners of the inner side wall of the outer shell are provided with L-shaped blocks, and the L-shaped blocks are matched with the four corners of the outer side wall of the inner shell.

In some embodiments, a second through hole is formed in a lower surface of the wiring board, a position of the second through hole corresponds to a position of the cell electrode contact, and the conductive pillar is inserted into the second through hole.

In some embodiments, an inclined groove is formed in the upper surface of the wiring board, and two ends of the inclined groove are respectively communicated to the second through holes corresponding to the different-pole contacts of the two adjacent battery cells.

In some embodiments, a straight groove is formed in the upper surface of the wiring board, and the straight groove is communicated with second through holes corresponding to the contacts at the same level of the battery cells.

In some embodiments, a strip groove is formed in the lower surface of the lead plate, and the position of the strip groove corresponds to the position of the conductive post;

and the strip-shaped groove is internally provided with a conductive strip which is connected with the binding post.

In some embodiments, the upper side of the inner shell is provided with a notch, and the lower side of the wiring board is provided with a clamping block.

Compared with the prior art, the utility model provides an ultralow-temperature square polymer lithium ion battery, which has the following beneficial effects:

1. according to the utility model, the independently arranged wiring board is connected with the circuit, so that the operation is convenient and efficient when connecting and changing the connecting wires; the wiring board and the lead plate are designed separately, so that the use is further facilitated; the shell is arranged to enhance the protection and cold-proof effects.

2. According to the utility model, the first through hole is formed, so that the weight of the device is reduced, and the heat dissipation is facilitated; and can be provided with a filling heat insulation component, so as to further ensure the normal use of the composite material in a low-temperature environment and ensure the protection and cold resistance effects; the inner shell is not in direct contact with the outer shell, so that the influence of external environmental factors on the inner shell is reduced, and the protection effect is further ensured; meanwhile, a heat insulating material can be arranged between the outer side surface of the inner shell and the inner wall surface of the outer shell, so that the cold resistance of the heat insulating material is further improved.

3. According to the utility model, the conductive columns are arranged in a plug-in type, and can be freely arranged and matched with different connection forms by matching with the inclined grooves and the straight grooves; the lead plate is designed in a matched mode, and operation convenience is further improved.

The utility model, set up the circuit of the terminal board independently, connect, change the convenient, high-efficient of operation; the wiring board and the lead plate are designed separately, so that the use is further facilitated; the shell is arranged to enhance the protection and cold-proof effects; the first through hole is formed, so that the weight of the device is reduced, and heat dissipation is facilitated; and can be provided with a filling heat insulation component, so as to further ensure the normal use of the composite material in a low-temperature environment and ensure the protection and cold resistance effects; the inner shell is not in direct contact with the outer shell, so that the influence of external environmental factors on the inner shell is reduced, and the protection effect is further ensured; meanwhile, a heat insulation material can be arranged between the outer side surface of the inner shell and the inner wall surface of the outer shell, so that the cold resistance of the heat insulation material is further improved; the conductive columns are arranged in a plug-in type, and can be freely arranged and matched with different connection forms by matching with the inclined grooves and the straight grooves; the lead plate is designed in a matched mode, and operation convenience is further improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the inner case;

FIG. 3 is a schematic structural view of the housing;

FIG. 4 is a schematic top view of the housing;

FIG. 5 is a schematic diagram of a patch panel configuration;

FIG. 6 is a schematic top view of a patch panel;

FIG. 7 is a bottom view schematic of the patch panel;

FIG. 8 is a schematic structural view of a lead plate;

FIG. 9 is a bottom view of the lead plate;

fig. 10 is a schematic structural diagram of the conductive pillar.

In the figure: 1. an inner shell; 2. an electric core; 3. a wiring board; 4. a conductive post; 5. a lead plate; 6. a binding post; 7. a housing; 8. a first through hole; 9. an L-shaped block; 10. a second through hole; 11. a chute; 12. a straight groove; 13. a strip-shaped groove; 14. a conductive strip; 15. a notch; 16. and (7) clamping blocks.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 to 10, an ultra-low temperature square polymer lithium ion battery includes an inner casing 1, the inner casing 1 is a box structure with an opening at the upper part; the battery cell 2 is arranged in the inner shell 1, the battery cells 2 are provided with a plurality of battery cells, and the plurality of battery cells 2 are matched with the inner shell 1 for installation; a wiring board 3 is arranged above the electric core 2, and a conductive column 4 is arranged on the upper surface of the wiring board 3; the wiring board 3 is covered and arranged above the electric cores 2, and is connected to the conductive columns 4 after a plurality of electric cores 2 are electrically connected into a whole; a lead plate 5 is arranged above the conductive column 4, and a binding post 6 is arranged on the upper surface of the lead plate 5; after the conductive column 4 contacts the lead plate 5, the conductive column is electrically connected to the wiring terminal 6 and is externally connected with output through the wiring terminal 6; the outer shell 7 is arranged outside the inner shell 1, and the outer shell 7 is sleeved outside for protection.

The independently arranged wiring board 3 is used for arranging a connecting circuit, so that the convenience and the high efficiency are realized when connecting and changing the connecting wire; the lead plate 5 is electrically communicated through the conductive column 4, and the wiring board 3 and the lead plate 5 are designed separately, so that the form of a connecting wire is further convenient to change; and a shell 7 is additionally arranged to enhance the protection and cold-proof effects.

In some embodiments, the outer surface of the inner shell 1 is provided with a first through hole 8.

Specifically, the first through holes 8 are provided with a plurality of first through holes 8, and the plurality of first through holes 8 are uniformly distributed on each surface of the inner shell 1.

The whole weight of the device can be reduced through the arranged first through hole 8; meanwhile, heat dissipation is convenient during working; and, can set up thermal-insulated part according to the environmental requirement in the through-hole, further guarantee its normal use under low temperature environment, guarantee protection, cold-resistant effect.

In some embodiments, the four corners of the inner side wall of the outer shell 7 are provided with L-shaped blocks 9, and the L-shaped blocks 9 are matched with the four corners of the outer side wall of the inner shell 1.

Through the arranged L-shaped block 9, the side wall of the inner shell 1 is only contacted with the inner side wall of the L-shaped block 9 and is not contacted with the outer shell 7, so that the contact area is reduced, the influence of environmental factors such as external vibration on the inner shell 1 can be reduced, and the protection effect is further ensured; meanwhile, a gap exists between the outer side surface of the inner shell 1 and the inner wall surface of the outer shell 7, and a heat insulating material can be arranged, so that the cold resistance of the heat insulating material is further improved.

In some embodiments, the lower surface of the wiring board 3 is provided with a second through hole 10.

Specifically, the position of the second through hole 10 corresponds to the position of the electrode contact of the battery cell 2, and the conductive column 4 is inserted into the second through hole 10. The shape of the lower part of the second through hole 10 is matched with the shape of the electrode contact of the battery cell 2; the upper portion of the second through-hole 10 is circular in shape; the second through hole 10 penetrates the wiring board 3 from the bottom up.

The upper part shape of the conductive column 4 matched with the second through hole 10 is arranged, and the installation positions and the installation quantity can be freely set in plug-in installation to match different connection forms.

Further, in some embodiments, the upper surface of the patch panel 3 is provided with a chute 11.

Specifically, a plurality of chutes 11 are provided; two ends of each inclined groove 11 are respectively communicated with the second through holes 10 corresponding to different pole contacts of two adjacent battery cores 2.

A connecting lead strip is arranged in the chute 11 to be communicated with the battery cell 2 by utilizing the chute 11; and the number of the electric cores connected in series is freely combined by matching with the conductive columns 4.

If only two batteries need to be connected in series for use, the connecting lines are installed in the corresponding one of the inclined grooves 11, and the conductive columns 4 are arranged at the corresponding positive and negative electrodes and connected to the lead plate 5 for outputting outwards.

Further, in some embodiments, the upper surface of the wiring board 3 is provided with a straight groove 12.

Specifically, two straight grooves 12 are provided, and each straight groove 12 communicates with the second through holes 10 corresponding to the same-level contacts of the plurality of battery cells 2.

When the battery is set to be in a full-load parallel connection mode, a connecting lead bar is arranged in the straight slot 12 to be connected with all the battery cores 2; meanwhile, one conductive post 4 may be mounted at each of two straight grooves 12. When the battery is not required to be fully loaded, installing a corresponding number of battery cores 2; or, the connecting lead bars are arranged not to connect all the electric cores 2, and the connection is carried out as required.

In some embodiments, the lower surface of the lead plate 5 is provided with a strip-shaped groove 13, the position of the strip-shaped groove 13 corresponds to the position of the conductive post 4, and any conductive post 4 can be placed in the strip-shaped groove 13; inside the strip groove 13, a conductive strip 14 is provided, and the conductive strip 14 is connected to the post 6.

After the lead plate 5 is installed, the conductive column 4 is placed in the strip-shaped groove 13; the upper side of the conductive post 4 contacts the lower side of the conductive strip 14 for electrical connection.

The lead plate 5 is matched, so that the convenience of operation is further improved.

In some embodiments, the upper side of the inner casing 1 is provided with a notch 15, and the lower side of the wiring board 3 is provided with a latch 16.

The shape of the fixture block 16 corresponds to that of the notch 15, and the fixture block is clamped together after being installed; is convenient for positioning, connecting and installing.

In the utility model, the wiring board 3 which is independently arranged is connected with a circuit, so that the connection and the change operations are convenient and efficient; the wiring board 3 and the lead plate 5 are designed separately, so that the use is further convenient; the shell 7 is arranged to enhance the protection and cold-proof effects; the first through hole 8 is formed, so that the weight of the device is reduced, and heat dissipation is facilitated; and can be provided with a filling heat insulation component, so as to further ensure the normal use of the composite material in a low-temperature environment and ensure the protection and cold resistance effects; the inner shell 1 is not in direct contact with the outer shell 7, so that the influence of external environmental factors on the inner shell 1 is reduced, and the protection effect is further ensured; meanwhile, a heat insulating material can be arranged between the outer side surface of the inner shell 1 and the inner wall surface of the outer shell 7, so that the cold resistance of the heat insulating material is further improved; the conductive columns 4 are arranged in a plug-in type, and can be freely arranged and matched with different connection forms by matching with the inclined grooves 11 and the straight grooves 12; the lead plate 5 is designed in a matching way, so that the convenience of operation is further improved.

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 person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a square polymer lithium ion battery of ultra-low temperature, includes inner shell (1), install electric core (2) in inner shell (1), its characterized in that, the top of electric core (2) is provided with wiring board (3), the upper surface of wiring board (3) is provided with leads electrical pillar (4), the top of leading electrical pillar (4) is provided with lead plate (5), the upper surface of lead plate (5) is provided with terminal (6), the outside of inner shell (1) is provided with shell (7).

2. The ultra-low temperature square polymer lithium ion battery according to claim 1, wherein the outer surface of the inner casing (1) is provided with a first through hole (8).

3. The ultra-low temperature square polymer lithium ion battery according to claim 1, characterized in that L-shaped blocks (9) are arranged at four corners of the inner side wall of the outer casing (7), and the L-shaped blocks (9) are matched with the four corners of the outer side wall of the inner casing (1).

4. The ultra-low temperature square polymer lithium ion battery according to claim 1, wherein a second through hole (10) is formed in the lower surface of the wiring board (3), the position of the second through hole (10) corresponds to the position of the electrode contact of the battery cell (2), and the conductive column (4) is inserted into the second through hole (10).

5. The ultra-low temperature square polymer lithium ion battery according to claim 4, wherein the upper surface of the wiring board (3) is provided with an inclined groove (11), and two ends of the inclined groove (11) are respectively communicated to the second through holes (10) corresponding to different pole contacts of two adjacent battery cells (2).

6. The ultra-low temperature square polymer lithium ion battery according to claim 4, characterized in that a straight groove (12) is formed on the upper surface of the wiring board (3), and the straight groove (12) is communicated with a plurality of second through holes (10) corresponding to the same-level contacts of the battery cells (2).

7. The ultra-low temperature square polymer lithium ion battery according to claim 1, wherein a strip-shaped groove (13) is formed in the lower surface of the lead plate (5), and the position of the strip-shaped groove (13) corresponds to the position of the conductive column (4);

and a conductive strip (14) is arranged in the strip-shaped groove (13), and the conductive strip (14) is connected with the binding post (6).

8. An ultra-low temperature square polymer lithium ion battery as claimed in claim 1, characterized in that the upper side of the inner casing (1) is provided with a notch (15), and the lower side of the wiring board (3) is provided with a fixture block (16).