CN220585278U - Single battery unpacking device - Google Patents

Abstract

The application discloses single battery unpacking device for unpacking single battery, its characterized in that, unpacking device includes: the utility model provides a unpacking tool and mount, the mount includes base, connecting rod and mounting, and base and mounting are connected to the connecting rod, unpacking tool includes cutter main part and unpacking tool bit, cutter main part wears to locate on the mounting, unpacking tool bit is located cutter main part lower extreme, unpacking tool bit lower extreme is equipped with the cutting mouth, the cutting mouth is annular, unpacking tool can follow the mounting axial activity, and the direction of activity with the cutting face of battery cell is perpendicular, the cutting mouth can be opened the cutting face of battery cell. The opening device is simple in structure, convenient to operate and free of secondary damage to the battery shell.

Description

Single battery unpacking device

Technical Field

The utility model relates to the technical field of batteries, in particular to a single battery unpacking device.

Background

With the further development of lithium ion batteries in recent years, the application scenes of lithium ion batteries are more and more extensive, and particularly, the application scenes with larger requirements on the battery capacity are more and more. For example: the power battery of the automobile, the energy storage battery forming the household light storage integrated machine, the battery forming the energy storage system for the power plant and the like.

In the above usage scenario, in order to meet the requirement of larger capacity, conventionally, a plurality of single batteries are connected together in a serial-parallel connection manner to form a large-capacity battery. However, due to the difference of the single batteries in the large-capacity battery, the uniformity of the single batteries in the large-capacity battery is poor, and the capacity and the cycle life of the large-capacity battery are limited.

In order to solve the problems, the existing high-capacity battery is communicated with the electrolyte area and the gas area of each single battery, so that each single battery is under the unified shared electrolyte and gas system, the difference among the single batteries is reduced to a certain extent, and the cycle life of the high-capacity battery is prolonged.

In the process of manufacturing the large-capacity battery, a purchased commercial battery is mostly required to be subjected to primary opening, then the sealing mechanism is installed on the primary opening, when the large-capacity battery is formed by assembly, the sealing mechanism is separated from the single battery to form a secondary opening, and finally the inner cavities of all the single batteries are communicated through the secondary opening. The opening of the housing of a commercially available battery once is accomplished by means of an external tool.

In the prior art, an operator usually adopts a screwdriver or other sharp cutters to pry a hole on a commercial single battery in a manual operation mode, the working efficiency of the process is low, the opening is not smooth easily in the operation process, burrs are formed, and meanwhile, the problems that burrs enter an electrolyte system in the form of scraps in the use process of a large-capacity battery are solved, the battery performance is affected, and even the battery is short-circuited are solved.

How to conveniently, quickly and reliably open the battery shell of the single battery once without influencing the battery performance is a problem to be solved.

Disclosure of Invention

The present utility model provides a single battery opening device that achieves one-time opening of a single battery and provides at least advantages that will be described later.

To achieve these objects and other advantages and in accordance with the purpose of the application, there is provided a battery cell opening device, the technical scheme of the application including:

a single battery unpacking device for unpacking single battery, unpacking device includes: the utility model provides a unpacking tool and mount, the mount includes base, connecting rod and mounting, and base and mounting are connected to the connecting rod, unpacking tool includes cutter main part and unpacking tool bit, cutter main part wears to locate on the mounting, unpacking tool bit is located cutter main part lower extreme, unpacking tool bit lower extreme is equipped with the cutting mouth, the cutting mouth is annular, unpacking tool can follow the mounting axial activity, and the direction of activity with the cutting face of battery cell is perpendicular, the cutting mouth can be opened the cutting face of battery cell.

Further, a limiting part is arranged on the cutter body, a guide groove matched with the limiting part is formed in the fixing part, and the limiting part is arranged in the guide groove to limit the unpacking cutter to move axially along the fixing part only.

Further, the unpacking tool further comprises a supporting piece, the supporting piece is connected with the lower end of the tool main body, the unpacking tool bit is arranged in the supporting piece, and when the unpacking tool bit is in contact with the cutting face of the single battery, a gap is reserved between the supporting piece and the cutting face.

Further, the unpacking device further comprises a gravity hammer, the gravity hammer is sleeved on the cutter body and can axially move along the cutter body, the cutter body is further provided with a boss, and acting force is applied to the cutter body through the boss when the gravity hammer moves downwards.

Further, the cutter body is internally provided with a hollow through channel, the unpacking cutter head is provided with a through hole, the cutter body is internally communicated with the unpacking cutter head, the unpacking cutter further comprises a vacuum chuck, and the vacuum chuck is arranged in the unpacking cutter head.

Further, the fixing frame base comprises a clamping groove, and the single battery is fixed on the base through the clamping groove.

The utility model has the beneficial effects that:

the single battery opening device disclosed by the utility model can realize one-time opening operation of the single battery shell, is simple in structure and convenient to operate, can rapidly and accurately open the single battery shell, is smooth and flat in opening, does not generate scraps, does not cause secondary damage to the single battery shell, is convenient for subsequent secondary opening operation, and can prevent residual waste chips generated after the single battery is opened from entering the battery to pollute the battery core.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view of a battery cell unpacking device for unpacking a battery cell;

fig. 2 is a view showing a structure of a cell case and an annular weak groove thereof;

FIG. 3 is a block diagram of a battery cell unpacking tool;

fig. 4 is a sectional view of the battery cell unpacking cutter.

The drawings are as follows:

1-a single battery shell; 11-cutting face; 12-an annular weak groove and 13-a shell opening; 14-a weak sheet, 2-a fixing piece; 21-a guide groove; 3-unpacking cutter; 31-a cutter body; 32-unpacking tool bit; 321-cutting ports; 33-limiting piece; 34-a support; 36-gravity hammer; 37-boss; 38-vacuum chuck; 39-a through passage; 4-fixing frames; 41-a base; 42-clamping grooves; 43-connecting rod.

Detailed Description

The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.

As shown in fig. 1-4, the single battery unpacking device is used for carrying out one-time unpacking operation on the single battery, the unpacking device is structured as shown in fig. 1 and comprises a unpacking cutter 3 and a fixing frame 4, the fixing frame 4 comprises a fixing piece 2, a connecting rod 43 and a base 41, the connecting rod 43 is connected with the fixing piece 2 and the base 41, the unpacking cutter 3 comprises a cutter main body 31 and a unpacking cutter head 32 connected to the lower end of the cutter main body 31, the cutter main body 31 of the unpacking cutter 3 penetrates through the fixing piece 2 and can move back and forth along the axial direction of the fixing piece 2, a cutting opening 321 is formed in the lower end of the unpacking cutter head 32, the cutting opening is annular, in the embodiment, the cutter main body 31 is a cylinder, a hollow circular channel is arranged in the middle of the fixing piece 2, and the diameter of the circular channel is slightly larger than that of the cutter main body 31, so that the cutter main body 31 can move up and down in the fixing piece 2, and the shape of the fixing piece 2 can be square, cuboid or other shapes.

When the battery pack opening cutter is used, the cutting face 11 of the battery pack which needs to be opened is upwards placed, the pack opening cutter 3 penetrating through the fixing piece 2 is placed above the cutting face 11 and is perpendicular to the cutting face 11, the moving direction of the pack opening cutter 3 is perpendicular to the cutting face 11 of the battery pack casing 1, external force perpendicular to the cutting face 11 is applied to the pack opening cutter 3 by using an external tool, the pack opening cutter 3 applies acting force to the cutting face 11, and when the external force is large enough, the pack opening cutter 32 opens the battery cutting face 11 to form an opening, so that one-time opening of the battery pack is realized. The device can realize once opening to the battery cell fast and conveniently. Because the cutting opening 321 is annular, the residual piece of the battery cutting face after opening is clamped in the cutting opening 321 and cannot fall into the battery.

Because the primary opening of the single battery is performed on the commercial battery, the housing of the commercial battery is thicker and can be realized by applying larger external force, in order to improve the opening operation efficiency and facilitate the operation, the annular weak groove 12 is formed on the cutting surface at the bottom of the single battery in advance, and the shape of the cutting opening 321 is matched with the annular weak groove 12. In this embodiment, the annular weakpoint groove 12 is shaped as a racetrack and the cutting port 321 is shaped as a matching racetrack. The annular weak groove 12 can also have other shapes, such as a circle, a rectangle, etc., and the purpose of the utility model can be achieved as long as the shape of the cutting opening 321 of the unpacking bit 32 is matched with the shape.

When the single battery pack is used, the cutting face 11 with the annular weak groove 12 is upwards placed, the pack opening cutter 3 is arranged in the fixing piece 2 in a penetrating mode, the fixing piece 2 can prevent the pack opening cutter 3 from inclining in the using process, the pack opening cutter 3 is perpendicular to the cutting face 11, the cutting opening 321 is arranged on the annular weak groove 12, downward external force is applied to the cutter main body 31, the pack opening cutter 3 downwards impacts the annular weak groove 12, the pack opening cutter head 32 applies force to the annular weak groove 12 to enable the annular weak groove to be broken, the weak piece 14 falls off from the annular weak groove 12, the single battery casing 1 generates the casing opening 13, and one-time opening of the single battery pack is achieved. The unified annular weak groove is formed in the fixed position of the cutting face 11 of each single battery, so that the opening position of each single battery is unified, subsequent operation is convenient, and meanwhile, due to the arrangement of the annular weak groove, the opening can be opened only by applying small external force, and the efficiency of unpacking operation can be improved.

Further, for convenience of use, the cutter body 31 is provided with a limiting member 33, and the limiting member 33 may be a screw detachably connected with the cutter body, or may be a protruding portion fixedly connected with the cutter body 31, and the limiting member 33 is vertically connected with the cutter body 31. In this embodiment, the limiting member 33 is a screw detachably connected to the cutter body 31, the fixing member 2 is provided with a guiding groove 21, the shape of the guiding groove 21 is matched with that of the limiting member 33, the limiting member 33 is placed in the guiding groove 21, and the limiting member 33 enables the cutter body 31 to move only along the guiding groove 21 along the axial direction of the fixing member 2. When the battery pack opening cutter is used, the cutting face 11 of the single battery case 1 with the annular weak groove 12 is upwards placed, the cutter body 31 is rotated, the limiting piece 33 is placed in the guide groove 21, under the action of gravity, the cutter body and the opening cutter head start to move towards the single battery until the opening cutter head 32 is in contact with the annular weak groove 12, the cutter body and the opening cutter head stop moving downwards, at the moment, a certain stroke is provided in the guide groove 21, so that the opening cutter 3 has a space for moving downwards, then a downward external force is applied to the opening cutter 3, the opening cutter head 32 cuts the annular weak groove 12, and then a case opening 13 is formed in the battery case. After the unpacking operation is completed, the unpacking cutter 3 can be lifted upwards by the limiting piece 33, the cutter body 31 is rotated, and the limiting piece 33 is placed on the fixing piece 2 to prepare for unpacking of the next single battery.

Further, in order to enable the unpacking tool bit 32 to open only the annular weak groove 12 and prevent secondary damage to the battery shell and the battery cell caused by overlarge external force, the lower end of the tool body 31 is provided with the supporting piece 34, the supporting piece 34 is connected with the lower end of the tool body 31, the unpacking tool bit 32 is arranged in the supporting piece 34, when the unpacking tool bit 32 is arranged on the cutting face and contacts with the cutting face, the supporting piece 34 cannot contact with the cutting face, a certain distance is reserved between the unpacking tool bit 32 and the cutting face, the unpacking tool 3 can open the annular weak groove 12, and secondary damage cannot be caused to the battery shell due to the supporting effect of the supporting piece 34. Preferably, the distance between the support 34 and the cutting face is slightly greater than the height of the annular weakening groove 12 when the unpacking bit 32 contacts the annular weakening groove 12. When the battery pack is used, the cutting face 11 of the single battery with the annular weak groove 12 is upwards placed, the pack opening cutter head 32 is arranged on the annular weak groove 12, downward external force is applied to the pack opening cutter 3, the pack opening cutter head 32 downwards generates impact acting force on the annular weak groove 12, and due to the supporting effect of the supporting piece 34, the pack opening cutter head 32 cannot excessively enter the battery shell after damaging the annular weak groove 12 so as to damage the internal battery cells, so that secondary damage to the single battery can be prevented.

Further, when external force is applied to the unpacking cutter 3, an external tool such as an iron hammer is needed, and in order to further improve the integrity of the device, a gravity hammer 36 is sleeved on the cutter body 31, as shown in fig. 4, in this embodiment, the gravity hammer 36 is a hollow cylinder, the inner diameter of the cylinder is larger than the outer diameter of the cutter body 31, and the gravity hammer 36 can move along the axial direction of the cutter body 31. The cutter body 31 is also provided with a boss 37 having a diameter larger than the diameter of the cutter body, and the inner diameter of the weight 36 is smaller than the outer diameter of the boss. When the device is used, the gravity hammer 36 moves upwards along the cutter body 31 for a certain distance, then falls freely, and under the action of gravity, the gravity hammer 36 falls on the boss 37, downward acting force is applied to the cutter body 31 through the boss 37, so that the cutter body 31 drives the unpacking cutter head 32 to move downwards, the unpacking cutter head 32 breaks the annular weak groove 12, and the single battery shell 1 is opened, and therefore the device has the advantages that the integrity is improved, and additional tools are not needed.

Further, in order to prevent the unpacking tool 3 from breaking the annular weak groove 12, the weak piece 14 falls into the battery cell and pollutes the battery cell, a through channel 39 is arranged in the tool body 31, as shown in fig. 4, a through hole is arranged in the unpacking tool bit 32, so that the through channel 39 is communicated with the inside of the unpacking tool bit 32, and a vacuum chuck 38 is arranged in the unpacking tool bit 32. When the vacuum bag opening tool is used, the upper end of the tool body 31 is externally connected with the vacuum device communicated with the through channel 39, the vacuum device is opened, after the annular weak groove 12 is opened by the bag opening tool 3, the weak piece 14 is sucked onto the vacuum chuck 38 under the action of vacuum suction force, and cannot fall into the battery to pollute the battery core, so that the performance of the high-capacity battery is protected.

Further, in order to fix the single battery conveniently, the base 41 of the fixing frame 4 is provided with a clamping groove 42, and the single battery can be fixed on the base 41 through the clamping groove 42. When the battery pack is used, positive and negative poles of a single battery are downwards fixed on the base 41 through the clamping groove 42, the surface, with the annular weak groove 12, of the bottom of the single battery is upwards, the position of the fixing piece 2 is adjusted, the pack opening cutter head 32 is aligned to the annular weak groove 12 and is perpendicular to the cutting surface 11 of the single battery, the limiting piece 33 is placed in the guide groove 21, the fixing piece 2 is placed above the annular weak groove 12, the gravity hammer 36 is lifted upwards to a certain distance to enable the gravity hammer to freely fall, the gravity hammer 36 impacts the boss 37, downward acting force is applied to the cutter body 31, the pack opening cutter head 32 is driven to downwards impact the annular weak groove 12, the annular weak groove 12 is opened, the shell opening 13 is formed, and due to the supporting effect of the supporting piece 34, the pack opening cutter head 32 only opens the annular weak groove 12 and secondary damage cannot be caused to a battery shell. When the external vacuumizing device is connected with the unpacking cutter, the vacuumizing operation is started, and the annular weak groove 12 cannot fall into the battery cell, so that secondary pollution to the battery is prevented from affecting the performance of the battery.

As will be readily appreciated by those skilled in the art, the bale opener and the gravity hammer may be made of iron, copper or other metals, or may be made of resin or other materials.

It will be readily apparent to those skilled in the art that the unpacking bit 32 is connected to the cutter body 31 by a threaded or other connection.

It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

The terms first and second and the like in the description and in the claims of embodiments of the utility model, are used for distinguishing between different objects and not necessarily for describing a particular sequential order of objects. For example, the first and second blocks, etc. are used to distinguish between different blocks, and are not used to describe a particular sequence of blocks.

In the description of the embodiments of the present utility model, unless otherwise indicated, the meaning of "a plurality" means two or more. For example, a plurality of elements refers to two elements or more than two elements.

Although embodiments of the utility model have been disclosed above, they are not limited to the use listed in the specification and embodiments. It can be applied to various fields suitable for the present utility model. Additional modifications will readily occur to those skilled in the art. Therefore, the utility model is not to be limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims (6)

1. A single battery unpacking device for unpacking single battery, its characterized in that, unpacking device includes: the utility model provides a unpacking tool and mount, the mount includes base, connecting rod and mounting, and base and mounting are connected to the connecting rod, unpacking tool includes cutter main part and unpacking tool bit, cutter main part wears to locate on the mounting, unpacking tool bit is located cutter main part lower extreme, unpacking tool bit lower extreme is equipped with the cutting mouth, the cutting mouth is annular, unpacking tool can follow the mounting axial activity, and the direction of activity with the cutting face of battery cell is perpendicular, the cutting mouth can be opened the cutting face of battery cell.

2. The single battery unpacking device according to claim 1, wherein a limiting piece is arranged on the cutter body, a guide groove matched with the limiting piece is arranged on the fixing piece, and the limiting piece is arranged in the guide groove to limit the unpacking cutter to move only along the axial direction of the fixing piece when moving.

3. The battery cell unpacking device according to claim 2, wherein the unpacking tool further comprises a supporting piece, the supporting piece is connected with the lower end of the tool body, the unpacking tool bit is arranged in the supporting piece, and when the unpacking tool bit is in contact with the cutting face of the battery cell, a gap is reserved between the supporting piece and the cutting face.

4. The battery cell unpacking device according to claim 3, further comprising a gravity hammer sleeved on the cutter body and capable of moving along the axial direction of the cutter body, wherein the cutter body is further provided with a boss, and the gravity hammer applies a force to the cutter body through the boss when moving downwards.

5. The battery cell unpacking device according to claim 4, wherein a hollow through channel is formed in the cutter body, a through hole is formed in the unpacking cutter head, the cutter body is communicated with the inside of the unpacking cutter head, and the unpacking cutter further comprises a vacuum sucker which is arranged in the unpacking cutter head.

6. The battery pack opening device according to claim 1, wherein the fixing frame base comprises a clamping groove, and the battery pack is fixed on the base through the clamping groove.