CN211017280U

CN211017280U - Lithium ion battery convenient to weld and link to each other and supporting electrical pressure plate that connects

Info

Publication number: CN211017280U
Application number: CN201921972022.9U
Authority: CN
Inventors: 不公告发明人
Original assignee: Xingheng Power Supply Chuzhou Co ltd
Current assignee: Xingheng Power Supply Chuzhou Co ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-07-14
Anticipated expiration: 2029-11-15

Abstract

The utility model provides a lithium ion battery convenient for welding connection and a matched connecting pressing plate, which can facilitate welding connection and fixation, and the connection part of the welding connection is stable and firm and is not easy to fall off, the lithium ion battery comprises a battery post, a pole post, a fixing plate is fixedly arranged at the outer end of the pole post, inclined clamping plates are fixedly arranged at both sides of the outer end of the fixing plate to form a structure with an arrow-shaped section, the connecting pressing plate comprises a main plate body and connecting plates, the main plate body is provided with a plurality of fixing perforations I in a matrix mode, the fixing perforations I are in a slender shape, the connecting plates are metal sheets in a long strip shape, a plurality of fixing perforations II are arranged on the connecting plates, the fixing plates and the inclined clamping plates on the pole posts penetrate into the fixing perforations I of the main plate body on the corresponding side and the fixing perforations II on the corresponding connecting plates to carry, the two are not easy to separate, the contact performance is good, and the welding is convenient.

Description

Lithium ion battery convenient to weld and link to each other and supporting electrical pressure plate that connects

Technical Field

The utility model relates to a lithium ion battery technical field especially relates to a lithium ion battery and supporting electricity clamp plate that connects convenient to welding links to each other.

Background

Because the lithium ion battery has high energy density, high charging and discharging efficiency, excellent performance and good cost performance, the lithium ion battery rapidly occupies the market after spontaneous development, and is widely applied to the fields of automobiles, electronic products, medical facilities and the like.

But because need a plurality of batteries to connect the equipment, the easy emergence battery utmost point post and the poor phenomenon of contact of piece that connects, in case the utmost point post of one of them battery takes place the poor contact, then can cause whole group battery paralysis, influence normal use, it is more reliable mode to adopt the welding mode to link to each other utmost point post and piece that connects, but only with the simple attached welding on utmost point post of piece that connects, because the welding part is single, can not make and effectively fuse between the two, still take place to disconnect easily in the service environment that often takes place to vibrate, need further improvement.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a lithium ion battery and a matched electrical connection pressing plate which are convenient for welding connection, can be conveniently welded, connected and fixed, and the connection part of the welding connection is stable and firm and is not easy to fall off, the lithium ion battery comprises a battery post and a pole post, the battery post is in a columnar structure, most of the battery post adopts a cylindrical structure, electrolyte and a winding battery cell are arranged inside the battery post, the pole post is arranged at the upper end and the lower end of the battery post, the pole post is divided into an anode and a cathode and is respectively connected with the internal winding battery cell, which is the basic structure of the columnar battery, the outer end of the pole post is fixedly provided with a vertically arranged fixing plate, the two sides of the outer end of the fixing plate are fixedly provided with inclined clamping pieces, the inclined clamping pieces are obliquely arranged towards the direction of the battery post, the inclined clamping pieces and the, and after the stress is released, the material can restore to the original state, namely the material has elastic deformation capacity.

The electric connection pressing plate comprises a main plate body and electric connection pieces, wherein the main plate body is a plate-shaped body and is made of an insulating material, such as plastic resin, a plurality of fixing through holes I are arranged on the main plate body in a matrix mode, the fixing through holes I are elongated, the length of each fixing through hole I is larger than the width of each fixing plate, the inner width of each fixing through hole I is larger than the sum of the thicknesses of the fixing plate and inclined cards on two sides of the fixing plate, the inner width of each fixing through hole I is smaller than the distance between the tail ends of the inclined cards in the original state, the inclined cards on the two sides of the fixing plate and the outer side ends of the fixing plate can penetrate through the fixing through holes I in an extruding mode, the distance between the tail ends of the inclined cards after the inclined cards penetrate through the fixing through holes and restore the original state is larger than the inner width of the fixing through holes I, the, the pitch of the rows of the first fixed perforations is equal to 18mm, although the pitch calculation needs to be from the center to the center of the perforations.

The utility model discloses a battery pack, including the main plate body, connect the piece, its specific length is the sheetmetal of rectangular shape, and its specific length can concatenate quantity and cluster and mode according to the battery and select, actually need the piece that connects of the different length of multichannel when carrying out the battery piece equipment, and it is used for electrically conducting between the anodal or the negative pole of battery piece, it is provided with the fixed perforation two of multichannel to arrange on connecting the piece, the size of fixed perforation two is the same with the size of fixed perforation one, and its range interval also equals the range interval of fixed perforation one, and then the piece can be arranged on the main plate body and fixed perforation two on it can link up with fixed perforation one-.

The equipment flow is, at first, according to putting order and the series-parallel mode of battery post, the piece that connects that will correspond is arranged at the lateral surface of the mainboard body (can arrange simultaneously at the installation battery), penetrate fixed plate and the slope cardboard on the utmost point post on the battery post on the mainboard body of one side that corresponds on the fixed perforation one and correspond the fixed perforation two on the piece that connects, then fixed plate and slope cardboard can temporarily block in this department, treat that the battery post is arranged the equipment and is accomplished, expose the position that connects outside the piece to fixed plate and slope cardboard and weld in unison.

The beneficial effects of the utility model are that, the welding of the lithium ion battery piece of being convenient for links to each other, and the junction that the welding links to each other is stable firm, be difficult for droing, because the contact is gone into to slope cardboard card own on the connection piece, both are difficult for breaking away from, the contact is good, and the contact site metal covering is big, slope cardboard has simultaneously left a large amount of spaces between the electric piece, it can make the slope cardboard and connect the electric piece direct combination to be full of with fixed perforation one and two positions of fixed perforation to melt metal after the welding, then the fixed plate hardly drops.

Preferably, the fixed plate, the inclined clamping plate and the power connection piece are made of nickel-plated steel, are suitable for being used for spot welding connection and fixation, and are high in tensile strength, low in internal resistance and resistant to oxidation.

As an improved embodiment, double-faced adhesive tapes are arranged on two sides of the second fixing through hole on the inner side face of the electric connecting piece and used for preliminarily fixing the electric connecting piece on the main board body, so that the first fixing through hole and the second fixing through hole can be conveniently penetrated by the fixing plate and the inclined clamping plate together, and in addition, the vibration of the electric connecting piece can be reduced.

As an improved embodiment, the upper end part and the lower end part of the battery post are fixedly provided with the rubber gaskets at the peripheral positions of the poles, so that after the battery is assembled, the rubber gaskets are directly contacted with the main board body, the vibration relieving effect is achieved, and the battery pack is favorable for working stability.

Drawings

Fig. 1 is a perspective view of the present invention in an assembled state.

Fig. 2 is a perspective view of the present invention showing a separated state of parts.

Fig. 3 is a schematic cross-sectional view of the assembled state of the single cell post part of the present invention.

Fig. 4 is a schematic cross-sectional view of a single cell column of the present invention in a separated state.

Fig. 5 is a schematic cross-sectional view of the assembled and welded state of a single battery post unit according to the present invention.

Detailed Description

The following detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.

A lithium ion battery convenient to weld and link to each other and supporting connect the clamp plate, as shown in figure 4, the said lithium ion battery includes the battery post 1, the post 2, the said battery post 1 is a column structure, the majority adopts the cylindrical structure, the inside sets up electrolyte and coiling electric core, the said post 2 is set up in the upper and lower both ends of the battery post 1, the post 2 is divided into positive pole and negative pole, link to each other with the coiling electric core inside respectively, this is the basic structure of the column battery, the outer end of the said post 2 is fixed with the vertical set plate 21, the both sides of outer end of the said plate 21 are fixed with the slope card 22, the said slope card 22 is inclined towards the battery post 1 direction, the slope card 22 forms the structure that the cross-section is the arrowhead shape with the plate 21, the slope card 22 can be drawn close to the plate 21 under the external pressure, and it can resume the original, i.e. it has an elastic deformation capacity.

As shown in fig. 2, the electrical connection pressing plate includes a main plate body 3 and an electrical connection piece 4, the main plate body 3 is a plate-shaped body made of an insulating material, such as plastic resin, on which a plurality of fixing through holes 31 are arranged in a matrix manner, the fixing through holes 31 are in a slender shape, the length of the fixing through holes is greater than the width of the fixing plate 21, the inner width of the fixing through holes is greater than the sum of the thicknesses of the fixing plate 21 and the inclined cards 22 on both sides of the fixing plate 21, but the inner width of the fixing through holes is less than the distance between the tail ends of the inclined cards 22 in the original state, as shown in fig. 3, the fixing plate 21 and the inclined cards 22 on both sides of the outer end of the fixing plate 21 can be extruded through the fixing through holes 31, and the inclined cards 22 can be clamped in the fixing through holes 31 after being extruded through and restored to the original state, the arrangement distance of the fixing through holes 31 is equal to, if the 18650 type lithium ion battery is most commonly used, the arrangement pitch of the first fixed through holes 31 is equal to 18mm, and the calculation of the pitch needs to be from the center to the center of the through holes.

The sheetmetal of receiving electric piece 4 for rectangular shape, as shown in fig. 2, its specific length can concatenate quantity and cluster and the mode according to the battery and select, actually need the electric piece of receiving of the different length of multichannel when carrying out the battery piece equipment, it is used for conducting between the anodal or the negative pole of battery piece, it is provided with two 41 of the fixed perforation of multichannel to arrange on the electric piece 4, the size of two 41 of the fixed perforation is the same with the size of a fixed perforation 31, and its range interval also equals the range interval of a fixed perforation 31, then the electric piece 4 can be arranged on the main plate body 3 and two 41 of the fixed perforation on it can correspond with a fixed perforation 31 and link up.

The assembly process is, at first, according to the order of putting of battery post 1, arrange corresponding electric connection 4 at the lateral surface of mainboard body 3 (can arrange at the installation battery simultaneously), penetrate fixed plate 21 and the slope cardboard 22 on the utmost point post 2 of battery post 1 to the fixed perforation one 31 of mainboard body 3 of one side that corresponds and correspond on the fixed perforation two 41 on electric connection 4, then fixed plate 21 and slope cardboard 22 can block in this department temporarily, wait that the battery post 1 is arranged the equipment and is accomplished, as shown in fig. 1, weld the position that fixed plate 21 and slope cardboard 22 expose outside electric connection 4 in unison.

The beneficial effects of the utility model are that, the welding of the lithium ion battery piece of being convenient for links to each other, and the junction that the welding links to each other is stable firm, be difficult for droing, because the contact is gone into to slope cardboard 22 card of own on connecting electric piece 4, both are difficult for breaking away from, the contact is good, and the contact site metal covering is big, slope cardboard 22 has simultaneously left a large amount of spaces between electric piece 4, the metal melts and to have can make slope cardboard 22 and connect electric piece 4 direct bond will fix and perforate one 31 and fix and perforate two 41 positions and be full of after the welding, as shown in fig. 5, then fixed plate 21 hardly drops.

Preferably, the fixing plate 21, the inclined clamping plate 22 and the electric connecting piece 4 are made of nickel-plated steel, are suitable for being used for spot welding connection and fixation, and have high tensile strength, low internal resistance and oxidation resistance.

As a modified embodiment, the inner side surface of the electric connecting piece 4 is provided with double-sided tapes 42 on two sides of the fixing through hole two 41, as shown in fig. 4, for preliminarily fixing the electric connecting piece 4 on the main board body 3, so that the fixing plate 21 and the inclined clamping plate 22 can conveniently penetrate into the fixing through hole one 31 and the fixing through hole two 41 together, and in addition, the vibration of the electric connecting piece 4 can be reduced.

As an improved embodiment, the upper and lower end portions of the battery post 1 are fixedly provided with rubber gaskets 5 at the outer peripheral positions of the poles 2, as shown in fig. 2 and 4, so that after the battery is assembled, the rubber gaskets 5 directly contact with the main plate body 3 to play a role in alleviating vibration, thereby facilitating the work stability of the battery pack.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes and modifications can be made, which shall all fall within the protection scope of the present invention.

Claims

1. The utility model provides a lithium ion battery convenient to welding links to each other which characterized in that: including battery post (1), utmost point post (2), battery post (1) is the columnar structure, utmost point post (2) set up the upper and lower both ends in battery post (1), the fixed plate (21) that are provided with vertical setting in the outer end of utmost point post (2), the fixed slope card (22) that are provided with in outer end both sides of fixed plate (21), slope card (22) set up towards battery post (1) direction slope, and slope card (22) and fixed plate (21) form the structure that the cross-section is the arrow point shape, and slope card (22) can be drawn close to fixed plate (21) under the pressure effect in the outside, and it can resume original state after the release atress.

2. The lithium ion battery for facilitating solder connections of claim 1, wherein: the fixing plate (21) and the inclined clamping piece (22) are made of nickel-plated steel.

3. The lithium ion battery for facilitating solder connections of claim 1, wherein: the upper end part and the lower end part of the battery post (1) are fixedly provided with rubber gaskets (5) at the peripheral positions of the poles (2).

4. The mating electrical connection platen for lithium ion batteries that facilitates welding connection of claim 1, wherein: comprises a main board body (3) and an electric connecting piece (4), wherein the main board body (3) is a plate-shaped body, which is made of insulating materials, a plurality of first fixing through holes (31) are arranged on the insulating materials in a matrix mode, the first fixing through holes (31) are in a slender shape, the length of the fixing plate is larger than the width of the fixing plate (21), the inner width of the fixing plate is larger than the sum of the thicknesses of the fixing plate (21) and the inclined clamping pieces (22) at the two sides of the fixing plate, but the inner width is smaller than the distance between the tail ends of the inclined clamping pieces (22) in the original state, the fixing plate (21) and the inclined clamping pieces (22) at the two sides of the outer end thereof can be extruded to pass through the fixing through hole I (31), the electric connecting piece (4) is a strip-shaped metal sheet, a plurality of second fixing through holes (41) are arranged on the electric connecting piece (4), the size of the second fixed through hole (41) is the same as that of the first fixed through hole (31), and the arrangement interval of the second fixed through hole is equal to that of the first fixed through hole (31).

5. The mating electrical platen of claim 4, wherein: the electric connecting piece (4) is made of nickel-plated steel.

6. The mating electrical platen of claim 5, wherein: and double-sided adhesive tapes (42) are arranged on the two sides of the second fixing through hole (41) on the inner side surface of the electric connecting piece (4).