CN205069690U

CN205069690U - Battery mold core

Info

Publication number: CN205069690U
Application number: CN201520788829.2U
Authority: CN
Inventors: 孙晓奇; 杨国平; 郑洪荣
Original assignee: HANGZHOU FUTURE POWER TECHNOLOGY Co Ltd
Current assignee: HANGZHOU FUTURE POWER TECHNOLOGY Co Ltd
Priority date: 2015-10-12
Filing date: 2015-10-12
Publication date: 2016-03-02
Anticipated expiration: 2025-10-12

Abstract

The application discloses battery mold core, including fundamental mode core and paratype core, the fundamental mode core with be provided with the muscle between the paratype core, the bottom thickness of paratype core compares a little first default of head thickness of paratype core, the bottom thickness of fundamental mode core compares a little second default of head thickness of fundamental mode core to make after the membrane shell fifty percent discount of preparation the bottom of membrane shell is the same with head thickness. The utility model provides an above -mentioned battery mold core, can ensure that the membrane shell is put into to a roll core after, membrane bottom portion tends to full, messenger's battery height does not exceed standard to can promote energy density.

Description

A kind of battery core rod

Technical field

The utility model relates to cell manufacturing techniques field, more particularly, relates to a kind of battery core rod.

Background technology

In prior art, utilize the formed in mould putamina in two hole, because its stamp degree of depth is large, for ensureing putamina drawing effect, gap (muscle) between major-minor hole increases with the increase of form depth, and muscle width become conference cause major-minor cheat before and after alignment after, superpose the degree of depth bottom it to strengthen, the bottom coordinated with core is excessively loose at thickness direction, cause finished product through thickness direction pressing and after vacuumizing, there is the larger flat phenomenon of sky in battery bottom, its outward appearance is not good, the more important thing is that its empty flat position takies certain height space, cause highly underproof large percentage, this is just unfavorable for the lifting of energy density.

Utility model content

For solving the problems of the technologies described above, the utility model provides a kind of battery core rod, after can guaranteeing that core puts into putamina, is tending towards full bottom putamina, cell height is not exceeded standard, thus can promote energy density.

The battery core rod that the utility model provides, comprise main core rod and secondary core rod, muscle is provided with between described main core rod and described secondary core rod, bottom thickness first preset value less of the head thickness of described secondary core rod of described secondary core rod, bottom thickness second preset value less of the head thickness of described main core rod of described main core rod, to make the bottom of described putamina after the putamina doubling of making identical with head thickness.

Preferably, in above-mentioned battery core rod, described first preset value is 1/1 to two/3rd of the width of described muscle, and described second preset value is 2/1 to three/2nds of the width of described muscle.

Preferably, in above-mentioned battery core rod, height little 3rd preset value of main core rod described in the aspect ratio of described secondary core rod, does not subside with bottom after making the putamina doubling of described making.

Preferably, in above-mentioned battery core rod, the scope of described 3rd preset value is 0.2 millimeter to 0.3 millimeter.

Preferably, in above-mentioned battery core rod, also comprise the air bag core be disposed adjacent with described main core rod.

Preferably, in above-mentioned battery core rod, also comprise holding pad, and described main core rod, described secondary core rod, described muscle and described air bag core are all arranged on described holding pad.

As can be seen from technique scheme, battery core rod provided by the utility model, bottom thickness due to described secondary core rod first preset value less of the head thickness of described secondary core rod, bottom thickness second preset value less of the head thickness of described main core rod of described main core rod, to make the bottom of described putamina after the putamina doubling of making identical with head thickness, therefore, after can guaranteeing that core puts into putamina, be tending towards full bottom putamina, cell height is not exceeded standard, thus can energy density be promoted.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.

The overall schematic of the battery core rod that Fig. 1 provides for the embodiment of the present application;

The vertical view of the shaping putamina that Fig. 2 makes for the battery core rod utilizing the embodiment of the present application to provide;

The front view of the shaping putamina that Fig. 3 makes for the battery core rod utilizing the embodiment of the present application to provide.

Embodiment

Core concept of the present utility model is to provide a kind of battery core rod, after can guaranteeing that core puts into putamina, is tending towards full bottom putamina, cell height is not exceeded standard, thus can promote energy density.

Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.

The battery core rod that the embodiment of the present application provides as shown in Figure 1, the overall schematic of the battery core rod that Fig. 1 provides for the embodiment of the present application.This battery core rod comprises main core rod 1 and secondary core rod 2, muscle 3 is provided with between described main core rod 1 and described secondary core rod 2, bottom thickness first preset value less of the head thickness of described secondary core rod 2 of described secondary core rod 2, bottom thickness second preset value less of the head thickness of described main core rod 1 of described main core rod 1, to make the bottom of described putamina after the putamina doubling of making identical with head thickness, with eliminate the size of muscle cause bottom thickness large and cause there is empty flat problem bottom resultant battery.

More specifically, referring to figs. 2 and 3, the vertical view of the shaping putamina that Fig. 2 makes for the battery core rod utilizing the embodiment of the present application to provide, the front view of the shaping putamina that Fig. 3 makes for the battery core rod utilizing the embodiment of the present application to provide.Wherein, T1 corresponds to the bottom thickness of secondary core rod, T2 corresponds to the head thickness of secondary core rod, T1<T2, T3 correspond to the bottom thickness of main core rod, and T4 corresponds to the head thickness of main core rod, T3<T4, H1 corresponds to the height of secondary core rod, and H2 corresponds to the height of main core rod, wherein H1 < H2.

As can be seen from technique scheme, the battery core rod that the embodiment of the present application provides, bottom thickness due to described secondary core rod first preset value less of the head thickness of described secondary core rod, bottom thickness second preset value less of the head thickness of described main core rod of described main core rod, to make the bottom of described putamina after the putamina doubling of making identical with head thickness, therefore, after can guaranteeing that core puts into putamina, be tending towards full bottom putamina, cell height is not exceeded standard, thus can energy density be promoted.

As a preferred version, in above-mentioned battery core rod, because the front and back drop of secondary core rod is little, therefore arranging described first preset value is 1/1 to two/3rd of the width of described muscle, because the front and back drop of main core rod is large, therefore arranging described second preset value is 2/1 to three/2nds of the width of described muscle, this makes it possible to the impact of the height of just offsetting muscle, and the structure of the putamina that making is obtained is more compact.

Further, in order to solve the phenomenon that stays of bottom, arranging as follows: height little 3rd preset value of main core rod described in the aspect ratio of described secondary core rod, not subsiding with bottom after making the putamina doubling of described making.Concrete, the scope of described 3rd preset value can be preferably 0.2 millimeter to 0.3 millimeter, guarantees that putamina is when doubling, in the process of alignment head, secondary hole film carries 0.2 millimeter to 0.3 millimeter, thus the phenomenon that bottom is stayed is effectively controlled.

In addition, in above-mentioned battery core rod, also comprise the air bag core 4 be disposed adjacent with described main core rod.Further, also comprise holding pad, and described main core rod 1, described secondary core rod 2, described muscle 3 and described air bag core 4 are all arranged on described holding pad.Aluminum plastic film forming process is as follows: be placed on holding pad by individual aluminum plastic film, and die shank, under the drive of external force, impels die to move down with guide rod; When die to contact with holding pad press down time, pressing spring under holding pad, makes secondary core rod, the gentle capsule-core of main core rod is all risen, thus make aluminum plastic film shaping.

To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims

1. a battery core rod, comprise main core rod and secondary core rod, muscle is provided with between described main core rod and described secondary core rod, it is characterized in that, bottom thickness first preset value less of the head thickness of described secondary core rod of described secondary core rod, bottom thickness second preset value less of the head thickness of described main core rod of described main core rod, to make the bottom of described putamina after the putamina doubling of making identical with head thickness.

2. battery core rod according to claim 1, is characterized in that, described first preset value is 1/1 to two/3rd of the width of described muscle, and described second preset value is 2/1 to three/2nds of the width of described muscle.

3. battery core rod according to claim 2, is characterized in that, height little 3rd preset value of main core rod described in the aspect ratio of described secondary core rod, does not subside with bottom after making the putamina doubling of described making.

4. battery core rod according to claim 3, is characterized in that, the scope of described 3rd preset value is 0.2 millimeter to 0.3 millimeter.

5. the battery core rod according to any one of claim 1-4, is characterized in that, also comprises the air bag core be disposed adjacent with described main core rod.

6. battery core rod according to claim 5, is characterized in that, also comprise holding pad, and described main core rod, described secondary core rod, described muscle and described air bag core are all arranged on described holding pad.