CN209016178U

CN209016178U - A kind of cupro-nickel piece lithium battery connection sheet

Info

Publication number: CN209016178U
Application number: CN201821903537.9U
Authority: CN
Inventors: 戚孟晨
Original assignee: SUZHOU JUTIANHE METAL TECHNOLOGY Co Ltd
Current assignee: Suzhou jutianhe Technology Co.,Ltd.
Priority date: 2018-11-19
Filing date: 2018-11-19
Publication date: 2019-06-21
Anticipated expiration: 2028-11-19

Abstract

The utility model discloses a kind of cupro-nickel piece lithium battery connection sheets of cell connector technical field, including shell, and the inner cavity of battery case is evenly arranged with battery, the adjacent surface of battery described in the two adjacent groups of left and right is provided with air distribution plate, and the bottom interior wall of battery case is evenly arranged with the lower connection sheet to match with battery, and the top of lower connection sheet is provided with spring, the top movable of the shell is provided with connection sheet, the fixation device to match with upper connection sheet is provided at the top of outer wall at left and right sides of the shell, the device is used for by nickel sheet and the battery core stainless steel casing resistance welding of cell top end, copper sheet is used for overcurrent, significantly reduce the internal resistance of pure nickel cell connector, enhance conveyance capacity, greatly improve electric conductivity, pull spring contraction, fixture block is pulled downward on, paste the top of connection sheet and battery tightly It closes, fixed function is played to upper connection sheet, facilitates welding, improves the working efficiency of welding.

Description

A kind of cupro-nickel piece lithium battery connection sheet

Technical field

The utility model relates to cell connector technical field, specially a kind of cupro-nickel piece lithium battery connection sheet.

Background technique

Lithium battery is widely used as new energy industry, such as automobile, logistic car, Large-scale Mobile energy storage, single lithium from Sub- battery core is assembled into battery modules or direct-assembling at battery pack, between battery core and battery core, between mould group and mould group first It is connected by conductor, realizes the series-parallel of battery, be known as lithium battery connection sheet for realizing series-parallel conductor part；Existing master The tab material of the battery core of stream generally has stainless steel and two kinds of aluminium；With 18650 for representative battery core, tab is generally stainless Steel material, therefore, we can select nickel sheet material to this kind of battery core connection sheet, rather than copper, this is because the crystal structure of copper and The difference of stainless steel is larger；With the increase of battery core capacity and discharge-rate, increasingly eaten by nickel confluence piece overload merely Strength, and when being welded to connect piece, connection sheet and battery are easy to appear offset, cause pad to malfunction, for this purpose, it is proposed that a kind of Cupro-nickel piece lithium battery connection sheet.

Utility model content

The purpose of this utility model is to provide a kind of cupro-nickel piece lithium battery connection sheets, to solve to mention in above-mentioned background technique Out the problem of.

To achieve the above object, the utility model provides the following technical solutions: a kind of cupro-nickel piece lithium battery connection sheet, including Shell offers battery case at the top of housing cavity, and the bottom of housing cavity offers vented cavity, the left and right sides wall of vented cavity Air inlet is offered, air-introduced machine is provided at left and right sides of vented cavity inner cavity, and the inner cavity of battery case is evenly arranged with electricity Pond, the adjacent surface of left and right two adjacent groups battery is provided with air distribution plate, and the bottom interior wall of battery case is run through in the bottom end of air distribution plate, and The bottom end of air distribution plate extends to the inner cavity of vented cavity, and the bottom of wall and the bottom of battery case inner sidewall are all provided at left and right sides of air distribution plate It is equipped with the tray to match with battery, and the bottom interior wall of battery case is evenly arranged with the lower connection sheet to match with battery, and The top of lower connection sheet is provided with spring, and the side wall of spring is bonded with the downside wall of battery, the top movable setting of shell There is upper connection sheet, and the top of the downside wall of upper connection sheet and battery connects, is provided at the top of outer wall at left and right sides of shell The fixation device to match with upper connection sheet.

Preferably, fixed device includes fixed shell, is connected at the top of the bottom of fixed housing left side wall and hull outside wall It connects, the top movable of fixed housing cavity is plugged with piston block, between the downside wall of piston block and the bottom side inner wall of fixed shell It is provided with pulling spring, fixture block is provided on the left of piston block inner cavity, and the left side wall of fixed shell, card are run through in the left end of fixture block The left side of block downside wall is bonded with the side wall of upper connection sheet, is provided with and is pushed away between inner wall on the right side of the right side wall and piston block of fixture block It moves spring.

Preferably, upper connection sheet includes nickel sheet, and the downside wall of nickel sheet is connect with battery, and the junction of nickel sheet and battery Offer holding tank, and the front inner wall of holding tank is evenly arranged with two groups of connection sheets, and the downside wall of connection sheet and battery Side wall connection, and the front side wall of nickel sheet is provided with copper sheet.

Preferably, air distribution plate includes hollow plate body, and the downside wall of battery case, and hollow plate are run through in the bottom end of hollow plate body Ventilation hole is uniformly provided on this, and the left and right sides outer wall of hollow plate body is evenly arranged with semicircle convex grain.

Preferably, the side that air inlet inner cavity in the left and right sides is located remotely from each other is provided with filter screen, left and right sides air inlet Inner cavity adjacent surface is evenly arranged with baffle, and baffle successively linear arrangement, and side of the baffle far from air-introduced machine from top to bottom It tilts down.

Preferably, fixture block includes fixture block ontology, and the left side wall of fixture block ontology is provided with guide pad, and the height of guide pad It is gradually reduced from right to left.

Compared with prior art, the utility model has the beneficial effects that

1. the device is used for by nickel sheet and the battery core stainless steel casing resistance welding of cell top end, copper sheet is used for overcurrent, The internal resistance of pure nickel cell connector is significantly reduced, conveyance capacity is enhanced, significantly reduces pure nickel cell connector Contact resistance greatly improves electric conductivity；

2. push the spring expansion pushes fixture block outward, fixture block is avoided to separate with upper connection sheet, pulls spring contraction, it will Fixture block pulls downward on, and is bonded connection sheet tightly with the top of battery, avoids connection sheet mobile, plays to upper connection sheet solid It is set for using, facilitates welding, improve the working efficiency of welding.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model fixture structure schematic diagram；

Fig. 3 is connection sheet structural schematic diagram on the utility model.

In figure: 1, shell；2, vented cavity；3, air inlet；4, air-introduced machine；5, battery；6, air distribution plate；7, tray；8, lower company Contact pin；9, fixed device；91, fixed shell；92, piston block；93, spring is pulled；94, push the spring；95, fixture block；10, upper company Contact pin；101, nickel sheet；102, holding tank；103, connection sheet；104, copper sheet.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of cupro-nickel piece lithium battery connection sheet, including shell Body 1 offers battery case at the top of 1 inner cavity of shell, and the bottom of 1 inner cavity of shell offers vented cavity 2, the left and right two of vented cavity 2 Side wall offers air inlet 3, air-introduced machine 4 is provided at left and right sides of 2 inner cavity of vented cavity, and the inner cavity of battery case is uniformly set It is equipped with battery 5, the adjacent surface of left and right two adjacent groups battery 5 is provided with air distribution plate 6, and the bottom end of air distribution plate 6 is through battery case Bottom interior wall, and the bottom end of air distribution plate 6 extends to the inner cavity of vented cavity 2, in the bottom and battery case of 6 left and right sides wall of air distribution plate The bottom of side wall is provided with the tray 7 to match with battery 5, and the bottom interior wall of battery case is evenly arranged with and 5 phase of battery Matched lower connection sheet 8, and the top of lower connection sheet 8 is provided with spring, and the downside wall of the side wall of spring and battery 5 pastes It closes, the top movable of shell 1 is provided with connection sheet 10, and the downside wall of upper connection sheet 10 is connect with the top of battery 5, shell The fixation device 9 to match with upper connection sheet 10 is provided at the top of 1 left and right sides outer wall, air-introduced machine 4 is powered on, will be outer The air on boundary passes through the inside of 3 suction ventilation chamber 2 of air inlet, then blows to battery 5 and upper company by the ventilation hole on air distribution plate 6 Contact pin 10, air-introduced machine 4 are electrically connected by conducting wire and external power supply switch, and fixed device 9, shell 1 and tray 7 are insulation material Material is made.

Wherein, fixed device 9 includes fixed shell 91, the bottom of fixed 91 left side wall of shell and the top of 1 lateral wall of shell Portion's connection, the top movable of fixed 91 inner cavity of shell are plugged with piston block 92, the downside wall of piston block 92 and fixed shell 91 It is provided between the inner wall of bottom side and pulls spring 93, be provided with fixture block 95 on the left of 92 inner cavity of piston block, and the left end of fixture block 95 is passed through The left side wall of fixed shell 91 is fastened, the left side of 95 downside wall of fixture block is bonded with the side wall of upper connection sheet 10, the right side of fixture block 95 It is provided with push the spring 94 between 92 right side inner wall of wall and piston block, by stirring fixture block 95 to two sides, facilitates connection sheet 10 placement, push the spring 94 push fixture block 95 outward, and fixture block 95 is avoided to separate with upper connection sheet 10, and spring 93 is pulled to receive Contracting, fixture block 95 is pulled downward on, is bonded connection sheet 10 tightly with the top of battery 5, avoids connection sheet 10 mobile, convenient Welding；

Upper connection sheet 10 includes nickel sheet 101, and the downside wall of nickel sheet 101 is connect with battery 5, and nickel sheet 101 and battery 5 Junction offers holding tank 102, and the front inner wall of holding tank 102 is evenly arranged with two groups of connection sheets 103, and connection sheet 103 downside wall is connect with the side wall of battery 5, and the front side wall of nickel sheet 101 is provided with copper sheet 104, which passes through laser Copper sheet 104 and nickel sheet 101 connecting welding one are realized higher current overload ability, nickel sheet 101 is used for and battery 5 by welding The battery core stainless steel casing resistance welding on top, copper sheet 104 are used for overcurrent, significantly reduce the interior of pure nickel cell connector Resistance, enhances conveyance capacity, significantly reduces the contact resistance of pure nickel cell connector, greatly improve electric conductivity；

Air distribution plate 6 includes hollow plate body, and the downside wall of battery case is run through in the bottom end of hollow plate body, and in hollow plate sheet Even to offer ventilation hole, the gas of 2 inner cavity of vented cavity blows to battery 5 and upper connection sheet 10 by ventilation hole, plays cooling and heat dissipation Effect, improve working efficiency, and the left and right sides outer wall of hollow plate body is evenly arranged with semicircle convex grain, semicircle convex grain rises To the effect of isolation battery 5 and hollow plate body, the circulation of gas is facilitated；

The side that air inlet 3 inner cavity in the left and right sides is located remotely from each other is provided with filter screen, and filter screen plays impurity screening Effect, 3 inner cavity adjacent surface of left and right sides air inlet are evenly arranged with baffle, and baffle successively linear arrangement from top to bottom, and Baffle one being sloped downwardly far from air-introduced machine 4, inclined baffle plays the role of guiding to water, and water is avoided to accidentally enter ventilation The inner cavity of chamber 2；

Fixture block 95 includes fixture block ontology, and the left side wall of fixture block ontology is provided with guide pad, and the height of guide pad is from the right side Be gradually reduced to a left side, keep the vertical section of guide pad triangular in shape, when installing connection sheet 10, the lateral wall of upper connection sheet 10 with lead It is bonded to the inclined-plane of block, fixture block 95 is pushed to two sides, facilitates the bottom that upper connection sheet 10 is placed on to fixture block 95.

Working principle: the inner cavity by the way that battery 5 to be inserted into battery case, by stirring fixture block 95, the company of facilitating to two sides The placement of contact pin 10, the expansion of push the spring 94 push fixture block 95 outward, avoid fixture block 95 from separating with upper connection sheet 10, pull Spring 93 is shunk, and fixture block 95 is pulled downward on, is bonded connection sheet 10 tightly with the top of battery 5, avoids connection sheet 10 It is mobile, welding is facilitated, air-introduced machine 4 is powered on, and extraneous air is passed through to the inside of 3 suction ventilation chamber 2 of air inlet, then Battery 5 and upper connection sheet 10 are blowed to by the ventilation hole on air distribution plate 6, which passes through laser welding for copper sheet 104 and nickel sheet 101 connecting weldings one realizes higher current overload ability, and nickel sheet 101 is used for and the battery core stainless steel casing on 5 top of battery Resistance welding, copper sheet 104 are used for overcurrent, significantly reduce the internal resistance of pure nickel cell connector, enhance conveyance capacity, effectively Ground reduces the contact resistance of pure nickel cell connector, greatly improves electric conductivity.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of cupro-nickel piece lithium battery connection sheet, including shell (1), it is characterised in that: opened up at the top of shell (1) inner cavity There is battery case, the bottom of shell (1) inner cavity offers vented cavity (2), and the left and right sides wall of the vented cavity (2) opens up Have air inlet (3), is provided with air-introduced machine (4) at left and right sides of vented cavity (2) inner cavity, and the inner cavity of battery case is uniformly set It is equipped with battery (5), the adjacent surface of battery (5) described in the two adjacent groups of left and right is provided with air distribution plate (6), and the bottom end of air distribution plate (6) The inner cavity of vented cavity (2), air distribution plate (6) left and right are extended to through the bottom end of the bottom interior wall of battery case, and air distribution plate (6) The bottom of two sidewalls and the bottom of battery case inner sidewall are provided with the tray (7) to match with battery (5), and the bottom of battery case Portion's inner wall is evenly arranged with the lower connection sheet (8) to match with battery (5), and the top of lower connection sheet (8) is provided with spring, and The side wall of spring is bonded with the downside wall of battery (5), and the top movable of the shell (1) is provided with connection sheet (10), and The downside wall of upper connection sheet (10) is connect with the top of battery (5), is provided at the top of outer wall at left and right sides of the shell (1) The fixation device (9) to match with upper connection sheet (10).

2. a kind of cupro-nickel piece lithium battery connection sheet according to claim 1, it is characterised in that: fixed device (9) packet It includes fixed shell (91), the bottom of fixed shell (91) left side wall is connect with the top of shell (1) lateral wall, the fixation The top movable of shell (91) inner cavity is plugged with piston block (92), the downside wall of the piston block (92) and fixed shell (91) It is provided between the inner wall of bottom side and pulls spring (93), be provided with fixture block (95) on the left of piston block (92) inner cavity, and fixture block (95) left side wall of fixed shell (91), the left side of fixture block (95) downside wall and the top of upper connection sheet (10) are run through in left end Side wall is bonded, and is provided with push the spring (94) between inner wall on the right side of the right side wall and piston block (92) of the fixture block (95).

3. a kind of cupro-nickel piece lithium battery connection sheet according to claim 1, it is characterised in that: upper connection sheet (10) packet It includes nickel sheet (101), and the downside wall of nickel sheet (101) is connect with battery (5), and nickel sheet (101) and the junction of battery (5) open up Have holding tank (102), and the front inner wall of holding tank (102) is evenly arranged with two groups of connection sheets (103), and connection sheet (103) Downside wall connect with the side wall of battery (5), and the front side wall of nickel sheet (101) is provided with copper sheet (104).

4. a kind of cupro-nickel piece lithium battery connection sheet according to claim 1, it is characterised in that: the air distribution plate (6) includes Hollow plate body, and the downside wall of battery case is run through in the bottom end of hollow plate body, and ventilation hole is uniformly provided in hollow plate sheet, and in The left and right sides outer wall of hollow plate body is evenly arranged with semicircle convex grain.

5. a kind of cupro-nickel piece lithium battery connection sheet according to claim 1, it is characterised in that: the left and right sides air inlet (3) side that inner cavity is located remotely from each other is provided with filter screen, and the left and right sides air inlet (3) inner cavity adjacent surface is evenly arranged with Baffle, and baffle successively linear arrangement from top to bottom, and baffle one being sloped downwardly far from air-introduced machine (4).

6. a kind of cupro-nickel piece lithium battery connection sheet according to claim 2, it is characterised in that: the fixture block (95) includes card Block body, and the left side wall of fixture block ontology is provided with guide pad, and the height of guide pad is gradually reduced from right to left.