CN212461951U

CN212461951U - Soft package battery formation and capacity-grading power connection pressing mechanism

Info

Publication number: CN212461951U
Application number: CN202021757402.3U
Authority: CN
Inventors: 毛铁军; 罗孝福
Original assignee: Shenzhen Newpower Automatic Equipment Co ltd
Current assignee: Shenzhen Newpower Automatic Equipment Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-02-02
Anticipated expiration: 2030-08-18

Abstract

The utility model belongs to the field of battery production machinery, in particular to a soft package battery formation and capacity-grading electric connection pressing mechanism and a battery tab pressing method, which comprises a tubular air bag, wherein one end of the air bag is closed, and the other end is provided with an air cock connected with an air supply system; the air bag is arranged on one side of the laminate. When the battery is clamped in the clamp, the air bag is in a negative pressure state at first, so that the inner wall of the air bag is attached, when the battery is clamped between adjacent laminate plates of the clamp, the air bag used for pressing the battery tab is prevented from hanging the tab, and further the tab is prevented from deforming. When the battery tab is pressed, the air bag is aerated and expanded, so that the tab is pressed on the electricity-connecting plate of the adjacent laminate by the air bag. The height of the maximum expansion of the air bag is larger than the thickness of the maximum battery, so that the soft package battery is suitable for batteries with different thicknesses through formation and capacity-based electric connection pressing mechanisms; different pressing mechanisms do not need to be replaced according to batteries with different thicknesses, so that the cost is reduced, and the production efficiency of the batteries can be improved.

Description

Soft package battery formation and capacity-grading power connection pressing mechanism

Technical Field

The utility model belongs to the technical field of battery production facility, especially, relate to a laminate polymer battery ization becomes, partial capacity connects electric hold-down mechanism.

Background

The soft package battery is a main battery of new energy at present; in the production process of the soft package battery, processes such as liquid injection, formation, capacity grading and the like are required. In the process of battery reformulation and capacity grading, the battery needs to be electrified. In the prior art, during formation or capacity grading of a battery, the battery needs to be clamped in a clamp; for example, the Chinese patent document publication numbers are: the formation clamp of the polymer lithium ion battery disclosed in CN107732310A describes that the battery is clamped between adjacent laminate plates of the clamp, and the battery is clamped by a pressure device; the tab of the battery is pressed on the electricity connection plate of the adjacent laminate plate through the elastic pressing block, as can be seen from a figure 10 of the publication document, the elastic pressing block consists of a plurality of small pressing blocks and independent springs, and when the elastic pressing block is not stressed, the elastic pressing block is in an extending state, so that when the battery is clamped in the clamp, the tab of the battery can be hung on the elastic pressing block, the tab of the battery is deformed, and even the battery can not be connected with electricity; and the protruding length of the elastic pressing block is limited, so when the batteries with different thicknesses are formed or the batteries are subjected to capacity grading, different elastic pressing blocks need to be replaced, the operation is complex, the efficiency is reduced, and the cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a laminate polymer battery ization becomes, partial capacity connects electric hold-down mechanism, the elasticity briquetting that aims at solving the formation of present battery and the voltage utmost point ear of partial capacity anchor clamps can be hung and causes the deformation at battery utmost point ear to and the problem that different thickness battery utmost point ears compressed tightly can't be tried out.

In order to achieve the above object, an embodiment of the present invention provides a soft package battery formation and capacitance-dividing electrical compression mechanism, which is used for compressing a tab of a battery on an electrical connection plate of an adjacent laminate in a formation clamp or a capacitance-dividing clamp; the air bag is closed at one end, and an air nozzle connected with an air supply system is arranged at the other end; the air bag is arranged on one side of the laminate.

Further, when the negative pressure in the air bag is attached, the air bag is not higher than the soft rubber plate on the side face of the laminate.

Furthermore, an installation plate is attached to one side of the air bag, and the installation plate is arranged on one side of the laminate.

Further, the both ends of mounting panel are connected with first mount pad and second mount pad, first mount pad sets up the top of plywood, the second mount pad sets up the bottom of plywood.

Furthermore, first mount pad with one side of second mount pad all is provided with "T" type groove, "T" type groove lower extreme of second mount pad is provided with the locating part, "T" type inslot of first mount pad is spacing to the upper end of mounting panel, and the lower extreme is spacing to be in "T" type groove of second mount pad and the tip of lower extreme are spacing on the locating part.

Furthermore, one end of a tab electricity-connecting plate is connected with the first mounting seat, the other end of the tab electricity-connecting plate is connected with the second mounting seat, and the tab electricity-connecting plate is positioned on the other side, opposite to the air bag, of the laminate.

Further, still including the laminating be in the clamp plate of air pocket surface, the one end of clamp plate is equipped with and is located the first limiting plate of first mount pad both sides, the other end of clamp plate is located the second limiting plate of second mount pad both sides, each first limiting plate with all be equipped with waist type hole on the second limiting plate, first mount pad with the both sides of second mount pad all are provided with and pass the corresponding spacer pin in waist type hole.

Further, the closed end butt fusion of air pocket is sealed, and the other end is equipped with sealed head, the air cock is located sealed overhead, the air cock is close to the bottom setting of plywood.

Further, the cross section of the air bag is waist-shaped.

Further, the air bag is a non-elastic air bag.

The embodiment of the utility model provides a laminate polymer battery ization becomes, the partial capacity connects above-mentioned one or more technical scheme in the electricity hold-down mechanism to have following technological effect at least:

1. when the battery is clamped in the clamp, the air bag is in a negative pressure state at first, so that the inner wall of the air bag is attached, when the battery is clamped between adjacent laminate plates of the clamp, the air bag used for pressing the battery tab is prevented from hanging the tab, and further the tab is prevented from deforming.

2. When the battery tab is pressed, the air bag is aerated and expanded, so that the tab is pressed on the electricity-connecting plate of the adjacent laminate by the air bag. However, the height of the maximum expansion of the air bag can be larger than the thickness of the maximum battery, so that the soft package battery is suitable for batteries with different thicknesses by being formed into a flexible package battery and electrically connected with the flexible package battery in a capacitance-divided manner; different pressing mechanisms do not need to be replaced according to batteries with different thicknesses, so that the cost is reduced, and the production efficiency of the batteries can be improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is the embodiment of the utility model provides a laminate polymer battery ization becomes, receives electric hold-down mechanism's block diagram with partial capacity.

Fig. 2 is a reverse structure view of the soft-package battery formation and capacity-grading electric connection pressing mechanism provided by the embodiment of the present invention.

Fig. 3 is the embodiment of the utility model provides a laminate polymer battery ization becomes, partial capacity connects electric hold-down mechanism the structure chart of first mount pad and second mount pad is connected to the mounting panel.

Fig. 4 is the embodiment of the utility model provides a laminate polymer battery ization becomes, partial capacity connects electric hold-down mechanism the structure chart of connecing the electroplax is connected to first mount pad and second mount pad.

Fig. 5 is a structure diagram of a flexible package battery formation and capacitance-divided electrical connection pressing mechanism provided with a pressing plate on the air bag.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In an embodiment of the present invention, referring to fig. 1 and fig. 2, a flexible package battery formation and capacitance-grading electric compression mechanism is used for compressing a tab of a battery on an electric plate of an adjacent laminate in a formation clamp or a capacitance-grading clamp; the air bag comprises a tubular air bag 100, wherein one end of the air bag 100 is closed, and the other end of the air bag 100 is provided with an air tap 101 connected with an air supply system; the air pockets 100 are disposed on one side of the laminate 200. When the battery is clamped in the clamp, firstly the air bag 100 is in a negative pressure state, so that the inner walls of the air bag 100 are attached, therefore, when the battery is clamped between the adjacent laminate plates 200 of the clamp, the air bag for pressing the battery pole lugs is prevented from hanging the pole lugs, and further the pole lugs are prevented from deforming. During the pressing of the battery tab, the air bag 100 is inflated so that the air bag 100 presses the tab against the current collector plate of the adjacent laminate 200. However, the height of the maximum expansion of the air bag 100 can be larger than the thickness of the maximum battery, so that the soft package battery can be suitable for batteries with different thicknesses by being formed into a flexible package battery and being connected with an electric pressing mechanism in a capacitance-divided manner; different pressing mechanisms do not need to be replaced according to batteries with different thicknesses, so that the cost is reduced, and the production efficiency of the batteries can be improved.

Further, when the air bag 100 is attached to the side of the laminate 200 under negative pressure, the air bag 100 is not higher than the side of the laminate 200. In this embodiment, when the battery is clamped, the air bag 100 is not higher than the soft plastic plate on the side of the laminate 200, so that the air bag 100 can be more effectively prevented from interfering with the tab of the battery. In addition, in this embodiment, when there is a certain power failure in the fixture and the battery cannot be powered on, a dummy cell is not required to be placed in the battery clamping position, and adjacent laminates 200 can be mutually attached and compressed; and when the formation or the capacity grading is finished and only a small amount of batteries are left, the batteries are clamped between the corresponding adjacent laminates 200, and false batteries do not need to be placed in empty battery clamping positions, so that the cost is saved.

Further, referring to fig. 1 to 4, an attachment plate 110 is attached to one side of the airbag 100, and the attachment plate 110 is disposed on one side of the laminate 200. In this embodiment, the mounting of the airbag 100 to the deck 200 is accomplished once by the mounting plate 110, thereby facilitating the mounting and dismounting.

Further, referring to fig. 1 to 4, a first mounting seat 120 and a second mounting seat 130 are connected to two ends of the mounting plate 110, the first mounting seat 120 is disposed at a top end of the laminate 200, and the second mounting seat 130 is disposed at a bottom end of the laminate 200. In this embodiment, the mounting plate 110 is mounted by the first mounting seat 120 and the second mounting seat 130; facilitating the installation of the mounting plate 110.

Further, referring to fig. 4, a T-shaped groove is formed in each of one sides of the first mounting base 120 and the second mounting base 130, a limiting member 131 is arranged at a lower end of the T-shaped groove of the second mounting base 130, an upper end of the mounting plate 110 is limited in the T-shaped groove of the first mounting base 120, a lower end of the mounting plate is limited in the T-shaped groove of the second mounting base 130, and an end of the lower end of the mounting plate is limited on the limiting member 131. In this embodiment, the mounting plate 110 can be directly inserted into the first mounting seat 120 and the second mounting seat 130, so that the air bag 100 can be mounted on one side of the laminate 200; the installation is convenient, and the replacement is also very convenient.

Further, referring to fig. 2 to 4, one end of the tab electrode 300 is connected to the first mounting seat 120, and the other end is connected to the second mounting seat 130, and the tab electrode 300 is located on the other side of the laminate sheet 200 opposite to the air bag 100. In this embodiment, the tab connecting plate 300 can be easily mounted, and the position of the tab connecting plate 300 can be consistent with that of the air bag 100.

Further, referring to fig. 5, laminate polymer battery ization becomes, partial capacity connects electricity hold-down mechanism still includes the laminating and is in the clamp plate 400 of air pocket surface, the one end of clamp plate 400 is equipped with and is located the first limiting plate 410 of first mount pad 120 both sides, the other end of clamp plate 400 is located the second limiting plate 420 of second mount pad 130 both sides, each first limiting plate 410 with all be equipped with waist type hole 401 on the second limiting plate 420, first mount pad 120 with the both sides of second mount pad 130 all are provided with and pass the correspondence the spacer pin 402 of waist type hole 401. In this embodiment, when the tab of the battery is pressed on the power connection plate 300, the air bag 100 is inflated to expand, and the pressing plate 400 is further pushed to press the tab of the battery; in the pressing process, the limiting pin 402 is used for guiding the pressing plate 400, so that the pressing plate 400 is prevented from being dislocated, and the precision of the pressing plate 400 for pressing the lug on the electric connection plate 300 is guaranteed.

More furtherly, the upper end of clamp plate 400 is equipped with the guide part 403 that bends, the upper end of the guide part 403 that bends extends to the top of first mount pad 120, through the guide part 403 that bends to play the guide effect to the utmost point ear of battery, avoids the utmost point ear of deformation to shelve the top at first mount pad 120.

Further, referring to fig. 1, 3 and 5, the closed end of the air bag 100 is welded and sealed, and the other end is provided with a sealing head 102, the air tap 101 is disposed on the sealing head 102, and the air tap 101 is disposed near the bottom end of the laminate 200. In this embodiment, the air cap 101 and the sealing head 102 may interfere with the tabs of the battery.

Further, the cross-section of the air bag 100 is waist-shaped. In this embodiment, the stress of the air bag 100 pressing the tab can be increased, so as to ensure the stability of the air bag 100 pressing the tab and ensure the power connection performance of the tab.

Further, the airbag 100 is a non-elastic airbag. In the embodiment, the air bag 100 can be effectively prevented from deforming under high air pressure, and the air pressure at each position of the air bag 100 is ensured to be consistent.

When the soft package battery formation and capacity-division power connection pressing mechanism presses battery tabs, firstly, air in the air bag 100 is pumped out to enable the air bag to be in a negative pressure state, then two inner side walls of the air bag 100 are attached, the battery is clamped in a formation clamp or a capacity-division clamp and tightly presses the battery, the air bag 100 is ventilated and expanded to tightly press the corresponding battery tabs on the corresponding power connection plates 300, and the battery tabs can be guaranteed to be tightly pressed on the power connection plates 300 in a static state; after the formation or the capacity grading of the battery is finished, the battery is loosened, the air in the air bag 100 is discharged, and the inner wall of the air bag 100 is attached. After the battery is compressed by the laminate 200, the air bag 100 is inflated to compress the tabs of the battery on the corresponding electric connection plates 300, so that the problem that the tabs are damaged or even torn due to the fact that the tabs are pulled when the battery is compressed due to the fact that the battery is completely compressed after the battery is compressed by the elastic pressing block when the existing battery is compressed is solved.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A soft package battery formation and capacitance-grading power connection pressing mechanism is used for pressing a tab of a battery on a power connection plate of an adjacent laminate in a formation clamp or a capacitance-grading clamp; the air bag is characterized by comprising a tubular air bag, wherein one end of the air bag is closed, and the other end of the air bag is provided with an air nozzle connected with an air supply system; the air bag is arranged on one side of the laminate.

2. The laminate polymer battery formation and capacitance-divided power connection pressing mechanism according to claim 1, characterized in that: when the negative pressure in the air bag is attached, the air bag is not higher than the soft rubber plate on the side surface of the laminate.

3. The laminate polymer battery formation and capacitance-divided power connection pressing mechanism according to claim 1, characterized in that: one side laminating of air pocket has the mounting panel, the mounting panel is located one side of plywood.

4. The laminate battery formation and capacity-division power connection pressing mechanism according to claim 3, wherein a first mounting seat and a second mounting seat are connected to two ends of the mounting plate, the first mounting seat is arranged at the top end of the laminate, and the second mounting seat is arranged at the bottom end of the laminate.

5. The laminate polymer battery formation and capacitance-divided power connection pressing mechanism according to claim 4, characterized in that: first mount pad with one side of second mount pad all is provided with "T" type groove, "T" type groove lower extreme of second mount pad is provided with the locating part, the upper end of mounting panel is spacing "T" type inslot of first mount pad, and the lower extreme is spacing "T" type groove of second mount pad, and the tip of lower extreme is spacing on the locating part.

6. The laminate polymer battery formation and capacitance-divided power connection pressing mechanism according to claim 4, characterized in that: one end of the tab electricity connecting plate is connected with the first mounting seat, the other end of the tab electricity connecting plate is connected with the second mounting seat, and the tab electricity connecting plate is located on the other side, opposite to the air bag, of the laminated plate.

7. The laminate polymer battery formation and capacitance-divided power connection pressing mechanism according to claim 4, characterized in that: still including the laminating be in the clamp plate of air pocket surface, the one end of clamp plate is equipped with and is located the first limiting plate of first mount pad both sides, the other end of clamp plate is located the second limiting plate of second mount pad both sides, each first limiting plate with all be equipped with waist type hole on the second limiting plate, first mount pad with the both sides of second mount pad all are provided with and pass the correspondence the spacer pin in waist type hole.

8. The soft package battery formation and capacitance-divided power connection pressing mechanism according to any one of claims 1 to 7, characterized in that: the sealed end butt fusion of air pocket is sealed, and the other end is equipped with sealed head, the air cock is located sealed overhead, the air cock is close to the bottom setting of plywood.

9. The soft package battery formation and capacitance-divided power connection pressing mechanism according to any one of claims 1 to 7, characterized in that: the cross section of the air bag is waist-shaped.

10. The soft package battery formation and capacitance-divided power connection pressing mechanism according to any one of claims 1 to 7, characterized in that: the air bag is a non-elastic air bag.