Battery formation, capacity division and connection device and battery formation, capacity division fixture

Abstract

The present invention belongs to the field of battery formation and capacity division mechanical equipment, and particularly relates to a battery formation and capacity division power connection device and a battery formation and capacity division fixture; comprising a first air bag arranged on one side of a laminate, and a power connection plate attached to the outer surface of the first air bag; the bottom end of the power connection plate is provided with a connection end for connecting to a formation power source or a capacity division power source; the first air bag is ventilated and expanded to push the power connection plate to move in the direction of a pressing lug mechanism for pressing the lug. When the battery is clamped between adjacent laminates of a formation fixture or a capacity division fixture, and when the battery lug is pressed on the power connection plate, when the battery lug is close to the center of the thickness, the first air bag is ventilated and expanded, so that the power connection plate moves to one side, so that the power connection plate contacts the lug, and the lug pressing mechanism presses the lug on the power connection plate, thereby avoiding excessive displacement and deformation of the lug, thereby achieving a protective effect on the lug.

Description

Technical Field

[0001] The invention belongs to the technical field of battery production equipment, and in particular relates to a battery formation, capacity division and power connection device and a battery formation, capacity division fixture. Background Art

[0002] Soft-pack batteries are the main batteries for new energy sources at present; the production process of soft-pack batteries requires processes such as liquid injection, formation and capacity division. During the formation and capacity division of the battery, the battery needs to be energized. In the prior art, the battery needs to be clamped in a fixture during formation or capacity division; for example, the polymer lithium-ion battery formation fixture disclosed in the Chinese patent document publication number: CN107732310A records that the battery is clamped between adjacent laminates of the fixture, and the battery is clamped by a pressure device; and the battery's tabs are pressed against the power connection plate of the adjacent laminate by an elastic pressure block. However, in the actual production process, the types of batteries are diverse, the thickness of the batteries is different, and the positions of the tabs are different. The power connection plate in the prior art is fixedly attached to one side of the laminate, and the tabs are pressed onto the power connection plate by the tab pressing mechanism. When the tabs are in the middle of the battery thickness, or close to the center of the battery thickness, the battery tabs will be bent when the tabs are pressed. Excessive bending of the tabs will form cracks, resulting in battery failure. Summary of the invention

[0003] The object of the present invention is to provide a battery formation, capacity division and power connection device and a battery formation, capacity division fixture, aiming to solve the problem that when the battery is clamped in a formation or capacity division fixture, the battery tab will be bent to form creases or cracks when the battery tab is pressed.

[0004] To achieve the above-mentioned purpose, an embodiment of the present invention provides a battery formation and capacity division power connection device, which is used for connecting the battery's pole ear during formation or capacity division; it includes a first air bag arranged on one side of a laminate, and a power connection plate attached to the outer surface of the first air bag; the bottom end of the power connection plate is provided with a connecting end for connecting to a formation power source or a capacity division power source; the first air bag is ventilated and expanded to push the power connection plate to move in the direction of a pole ear pressing mechanism that presses the pole ear.

[0005] Furthermore, the structure of the first air bag is in the shape of a tube strip, the upper end of the first air bag is closed, and the lower end is provided with an air nozzle for connecting air to the air supply system.

[0006] Furthermore, the first air bag is attached to the mounting plate, and a first mounting seat and a second mounting seat are respectively provided at both ends of the mounting plate, the first mounting seat is connected to the top of the laminate, and the second mounting seat is provided at the bottom of the laminate.

[0007] Furthermore, a "T"-shaped groove is provided on one side of the first mounting seat and the second mounting seat, and a limiting member is provided at the lower end of the "T"-shaped groove of the second mounting seat. The upper end of the mounting plate is limited in the "T"-shaped groove of the first mounting seat, and the lower end is limited in the "T"-shaped groove of the second mounting seat, and the end of the lower end is limited on the limiting member.

[0008] Furthermore, one end of the power connection plate is provided with a first limit plate located on both sides of the first mounting seat, and the other end of the power connection plate is provided with a second limit plate located on both sides of the second mounting seat, each of the first limit plate and the second limit plate is provided with a waist-shaped hole, and both sides of the first mounting seat and the second mounting seat are provided with limit pins passing through the corresponding waist-shaped holes.

[0009] Furthermore, a connecting strip is connected to the outer surface of the first air bag, the connecting strip has two free ends, an upper end and a lower end, and the power board is attached to the connecting strip.

[0010] Furthermore, a tab pressing mechanism is provided on the other side of the laminate, which is used to press the battery tabs onto the power connection plate of the adjacent laminate; the tab pressing mechanism includes a second mounting plate and a second air bag; one end of the second mounting plate is connected to one side of the first mounting seat, and the other end is connected to one side of the second mounting seat, and the second air bag is attached to the outer surface of the second mounting plate; the second air bag is a tubular structure, the upper end of the second air bag is closed, and the bottom end is provided with a second air nozzle connected to the air pipe of the air supply system.

[0011] Furthermore, a second "T"-shaped groove is provided on one side of the first mounting seat and the second mounting seat connected to the second mounting plate, and a limiting protrusion is provided at the lower end of the second "T"-shaped groove of the second mounting seat; the second mounting plate is limited in the second "T"-shaped groove of the first mounting seat and the second mounting seat, and the bottom end is supported on the limiting protrusion.

[0012] Furthermore, a second air bag is provided on the other side of the laminate, which is used for ventilation, expansion and compression of the battery pole ear on the power connection plate adjacent to the laminate; the second air bag is a tubular structure, the upper end of the second air bag is closed, and the lower end is provided with a second air nozzle for connecting to the air pipe of the air supply system.

[0013] The battery formation and capacity division fixture comprises a battery formation and capacity division power connection device, wherein the connection end of the power connection plate is electrically connected to a power source; the battery is placed directly on adjacent laminates, and the first air bag is ventilated and expanded to push the power connection plate toward the pole ear pressing mechanism to press the pole ear with the pole ear pressing mechanism.

[0014] The above one or more technical solutions in the battery formation and capacity division power connection device provided by the embodiment of the present invention have at least the following technical effects:

[0015] When the battery is clamped between adjacent laminates of a formation fixture or a capacity separation fixture and the battery tab is pressed against the power connection plate, when the battery tab is close to the center of the thickness, the first air bag is ventilated and expanded, so that the power connection plate moves to one side, so that the power connection plate contacts the tab, and the tab pressing mechanism presses the tab against the power connection plate, thereby avoiding excessive displacement and deformation of the tab, thereby achieving a protective effect on the tab. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A structural diagram of a battery formation and capacity division and power connection device provided in an embodiment of the present invention.

[0018] Figure 2 A structural diagram of the battery formation and capacity division power connection device provided in an embodiment of the present invention, wherein the power connection board is limited on the first mounting seat and the second mounting seat.

[0019] Figure 3 This is a structural diagram of the first mounting seat and the second mounting seat of the battery formation and capacity division and power connection device provided in an embodiment of the present invention.

[0020] Figure 4 A schematic structural diagram of another embodiment of the battery formation and capacity division power connection device provided in an embodiment of the present invention, in which the power connection plate is connected to the air bag.

[0021] Figure 5 A structural diagram of a battery formation and capacity division and power connection device provided in an embodiment of the present invention, in which a second air bag is arranged on the other side of the first mounting seat and the second mounting seat.

[0022] Figure 6 for Figure 5 Exploded diagram. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0024] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0027] In one embodiment of the present invention, referring to Figure 1A battery formation and capacity division power connection device, used for connecting the battery tabs during formation or capacity division; comprising a first air bag 200 arranged on one side of a laminate 100, and a power connection plate 300 attached to the outer surface of the first air bag 200; the bottom end of the power connection plate 300 is provided with a connection end 301 for connecting to a formation power source or a capacity division power source. The first air bag 200 is ventilated and expanded to push the power connection plate 300 to move toward the tab pressing mechanism for pressing the tabs. When the battery is clamped between adjacent laminates 100 of a formation fixture or a capacity separation fixture, and when the battery tab is pressed on the power board 300, when the battery tab is close to the center of the thickness, the first air bag 200 is ventilated and expanded, so that the power board 300 moves to one side, so that the power board 300 contacts the tab, and the tab pressing mechanism presses the tab on the power board 300, thereby avoiding excessive displacement and deformation of the tab, thereby achieving a protective effect on the tab. In addition, in this embodiment, the air pressure in the first air bag 200 can be adjusted according to different batteries, so that the position of the power board 300 just fits the battery tab without causing deformation of the battery tab, so as to achieve adaptability to different batteries. When the battery is clamped between the corresponding adjacent laminates 100, the first air bag 200 has a negative pressure, so that the power connection plate 300 fits the laminate 100, thereby effectively preventing the battery's pole ear from hanging on the top of the power connection plate 300 when the battery is clamped between the adjacent laminates 100, thereby protecting the battery's pole ear.

[0028] Furthermore, the structure of the first air bag 200 is in the shape of a tube strip, the upper end of the first air bag 200 is closed, and the lower end is provided with a gas nozzle 201 for connecting air to the air supply system. In this embodiment, the first air bag 200 adopts a tube strip design, which can reduce the installation space and ensure that the power board 300 is evenly stressed.

[0029] Further, refer to Figure 1 and Figure 2 The first air bag 200 is attached to the mounting plate 400, and the first mounting seat 410 and the second mounting seat 420 are respectively disposed at both ends of the mounting plate 400, the first mounting seat 410 is connected to the top of the laminate 100, and the second mounting seat 420 is disposed at the bottom of the laminate 100. In this embodiment, the first mounting seat 410 and the second mounting seat 420 facilitate the installation of the first air bag 200.

[0030] Further, refer to Figure 1 to Figure 3, one side of the first mounting seat 410 and the second mounting seat 420 are both provided with a "T"-shaped groove, and the lower end of the "T"-shaped groove of the second mounting seat 420 is provided with a limiting member 421, and the upper end of the mounting plate 400 is limited in the "T"-shaped groove of the first mounting seat 410, and the lower end is limited in the "T"-shaped groove of the second mounting seat 420, and the end of the lower end is limited on the limiting member 421. In this embodiment, when the mounting plate 400 and the first air bag 200 are installed on one side of the laminate 100, it is only necessary to insert the mounting plate 400 into the "T"-shaped groove of the first mounting seat 410 and the second mounting seat 420. When taking it out for replacement, it is only necessary to pull it out, so as to achieve convenient installation and replacement.

[0031] Further, refer to Figure 2 , one end of the power connection plate 300 is provided with a first limiting plate 311 located on both sides of the first mounting seat 410, and the other end of the power connection plate 300 is provided with a second limiting plate 312 located on both sides of the second mounting seat 420, each of the first limiting plate 311 and the second limiting plate 412 is provided with a waist-shaped hole 302, and both sides of the first mounting seat 410 and the second mounting seat 420 are provided with limiting pins 401 passing through the corresponding waist-shaped holes 302. In this embodiment, when the first air bag 200 is ventilated and expanded, the limiting pins 401 play a limiting role on the power connection plate 300, so as to avoid the power connection plate 300 from being misaligned left and right, thereby ensuring that the tab can be normally connected to the power connection plate 300.

[0032] Further, refer to Figure 4 In another embodiment of the connection between the power board 300 and the air bag 200, a connecting strip 202 is connected to the outer surface of the first air bag 200, the connecting strip 202 has two free ends, an upper end and a lower end, and the power board 300 is attached to the connecting strip 202. In this embodiment, since at least one end of the first air bag 200 is sealed below the middle position; after the first air bag 200 is inflated and tightened, the power board 300 is connected through the connecting strip 202, thereby avoiding the problem of the power board 300 being separated from the first air bag 200.

[0033] Further, refer to Figure 5 and Figure 6, a tab pressing mechanism 500 is also provided on the other side of the laminate 100, which is used to press the battery tab on the power board 300 of the adjacent laminate 100. The tab pressing mechanism 500 includes a second mounting plate 510 and a second air bag 520. One end of the second mounting plate 510 is connected to one side of the first mounting seat 410, and the other end is connected to one side of the second mounting seat 420, and the second air bag 520 is attached to the outer surface of the second mounting plate 510. The second air bag 520 is a tubular structure, the upper end of the second air bag 520 is closed, and the bottom end is provided with a second air nozzle 521 connected to the air pipe of the air supply system. In this embodiment, when pressing the tab, the second air bag 520 and the first air bag 200 are inflated, so that the second air bag 520 presses the tab on the power board 300. Specifically, when the battery is clamped between adjacent laminates 100, after the clamp clamps the battery, the first airbag 200 and the second airbag 520 are inflated to press the tabs against the power board 300, thereby avoiding pulling the tabs when pressing the tabs, thereby protecting the tabs. In this embodiment, when the battery is placed between adjacent laminates 100, all the gas in the first airbag 200 and the second airbag 300 is discharged to avoid interference between the power board 300 and the second airbag 520 with the tabs, so that the battery tabs can be smoothly placed between the second airbag 5280 and the power board 300. Furthermore, in this embodiment, the first air bag 200 and the second air bag 520 are both connected to the first mounting seat 410 and the second mounting seat 420, thereby ensuring the position of the power connection plate 300 and the second air bag 520, and thus when the tab is pressed on the power connection plate 300, misalignment can be avoided, so that the pressing force on the tab is evenly distributed, and the stability of the tab connection is ensured.

[0034] Further, refer to Figure 6 The first mounting seat 410 and the second mounting seat 420 are both provided with a second "T"-shaped groove on one side connected to the second mounting plate 400, and a limiting protrusion 422 is provided at the lower end of the second "T"-shaped groove of the second mounting seat 420; the second mounting plate 510 is limited in the second "T"-shaped groove of the first mounting seat 410 and the second mounting seat 420, and the bottom end is supported on the limiting protrusion 422. In this embodiment, the installation and replacement of the second airbag 520 is facilitated.

[0035] In another embodiment of pressing the battery tab on the power board 300, a second air bag 520 is further provided on the other side of the laminate 200 for ventilating and expanding to press the battery tab on the power board 300 adjacent to the laminate 100; the second air bag 520 is a tubular structure, the upper end of the second air bag 52 is closed, and the lower end is provided with a second air nozzle 521 for connecting to the air pipe of the air supply system.

[0036] The battery formation and capacity division fixture includes a battery formation and capacity division power connection device, wherein the connection end 301 of the power connection plate 300 is electrically connected to a power source; the battery is placed directly on adjacent laminates 100, and the first air bag 200 is ventilated and expanded to push the power connection plate 300 toward the tab pressing mechanism, and the tab is pressed against the tab pressing mechanism to achieve tab power connection.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery formation, capacity division and power connection device, used for battery tabs during formation or capacity division and power connection; characterized in that: The invention comprises a first air bag arranged on one side of a laminate, and a power connection plate attached to the outer surface of the first air bag; a connection end is arranged at the bottom end of the power connection plate for connecting to a formation power source or a capacity-dividing power source; the first air bag is ventilated and expanded to push the power connection plate to move in the direction of a pressing ear mechanism for pressing the ear; the first air bag is attached to a mounting plate, and a first mounting seat and a second mounting seat are arranged at both ends of the mounting plate, the first mounting seat is connected to the top of the laminate, and the second mounting seat is arranged at the bottom of the laminate; the first mounting seat and the second mounting seat are connected to each other. A "T"-shaped groove is provided on one side of the seat, and a limiting piece is provided at the lower end of the "T"-shaped groove of the second mounting seat. The upper end of the mounting plate is limited in the "T"-shaped groove of the first mounting seat, and the lower end is limited in the "T"-shaped groove of the second mounting seat, and the end of the lower end is limited on the limiting piece; a second air bag is also provided on the other side of the laminate, which is used for ventilation and expansion to press the battery pole ear on the power connection plate adjacent to the laminate; the second air bag is a tubular structure, the upper end of the second air bag is closed, and the lower end is provided with a second air nozzle for connecting with the air pipe of the air supply system.

2. The battery formation and capacity division and connection device according to claim 1, characterized in that: The structure of the first air bag is in the shape of a tube strip. The upper end of the first air bag is closed, and the lower end is provided with an air nozzle for connecting air to the air supply system.

3. The battery formation and capacity division and connection device according to claim 1, characterized in that: One end of the power connection plate is provided with a first limit plate located on both sides of the first mounting seat, and the other end of the power connection plate is provided with a second limit plate located on both sides of the second mounting seat, each of the first limit plate and the second limit plate is provided with a waist-shaped hole, and both sides of the first mounting seat and the second mounting seat are provided with a limit pin passing through the corresponding waist-shaped hole.

4. The battery formation and capacity division and connection device according to any one of claims 1 to 3, characterized in that: The outer surface of the first air bag is connected with a connecting strip, the connecting strip has two free ends, an upper end and a lower end, and the power board is attached to the connecting strip.

5. The battery formation and capacity division and connection device according to any one of claims 1 to 3, characterized in that: A tab pressing mechanism is also provided on the other side of the laminate, which is used to press the battery tab on the power connection plate of the adjacent laminate; the tab pressing mechanism includes a second mounting plate and a second air bag; one end of the second mounting plate is connected to one side of the first mounting seat, and the other end is connected to one side of the second mounting seat, and the second air bag is attached to the outer surface of the second mounting plate; the second air bag is a tubular structure, the upper end of the second air bag is closed, and the bottom end is provided with a second air nozzle connected to the air pipe of the air supply system.

6. The battery formation and capacity division and connection device according to claim 5, characterized in that: A second "T"-shaped groove is provided on one side where the first mounting seat and the second mounting seat are connected to the second mounting plate, and a limiting protrusion is provided at the lower end of the second "T"-shaped groove of the second mounting seat; the second mounting plate is limited in the second "T"-shaped groove of the first mounting seat and the second mounting seat, and the bottom end is supported on the limiting protrusion.

7. Battery formation and capacity separation fixture, characterized in that: The battery formation and capacity division power connection device comprises the battery formation and capacity division power connection device according to any one of claims 1 to 6, wherein the connection end of the power connection plate is electrically connected to the power source; the battery is placed directly on adjacent laminates, the first air bag is ventilated and expanded, and the power connection plate is pushed to move toward the pole ear pressing mechanism, and the pole ear is pressed tightly with the pole ear pressing mechanism.

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