CN215119001U - Naked electric core manufacture equipment - Google Patents

Abstract

The utility model relates to a naked electric core manufacturing device, which comprises an inner clamping rod, wherein the inner clamping rod is arranged at the inner side of a naked electric core; the inner clamping rod comprises a fixing component and a telescopic component, the fixing component is used for abutting against the inner side surface of the naked electric core, the telescopic component is configured to move between a first position and a second position, and when the first position is reached, the telescopic component is used for abutting against the inner side surface of the naked electric core and heating the naked electric core; when in the second position, the telescopic assembly is separated from the inner side surface of the naked electric core. Different from the prior art, the utility model can effectively reduce the problems that the pole pieces at the corners of the inner ring are separated from the winding layer and are dislocated; and through effective heating, fixed corner, the fold that has reduced the big face of inner circle electric core and the problem of loosing core that probably appears.

Description

Naked electric core manufacture equipment

Technical Field

The utility model relates to a naked electric core production technical field, in particular to naked electric core manufacture equipment.

Background

At the in-process of production naked electric core, need convolute naked electric core, accomplish the back at the coiling, need press from both sides the naked electric core of accomplishing after the coiling and get. In order to guarantee that the problem that the in-process can not appear naked electric core inner circle collapse, inner circle fold, loose core, utmost point ear position change is got to the clamp, current naked electric core manufacture equipment is provided with the clamping bar usually and pulls it to the ellipse after being used for pressing from rolling up the needle and getting naked electric core, flattens naked electric core through the cylinder again.

But the in-process of existing naked electric core manufacture equipment with the pressure-sensitive adhesive tape-clip pole leakage power after taking out naked electric core, the corner of naked electric core inner circle pole piece can produce the problem that breaks away from, misplaces because of the release of stress, influences the security of naked electric core.

SUMMERY OF THE UTILITY MODEL

Therefore, a bare cell manufacturing device is needed to be provided for solving the technical problems that in the prior art, when a bare cell is taken out, the clamping rod is subjected to force leakage, and the corners of the inner ring pole pieces of the bare cell are separated and dislocated due to stress release.

In order to realize above-mentioned purpose, the inventor provides a naked electric core manufacture equipment, includes:

the inner clamping rod is arranged on the inner side of the naked electric core;

the inner clamping rod comprises a fixing component and a telescopic component, the fixing component is used for abutting against the inner side surface of the naked electric core, the telescopic component is configured to move between a first position and a second position, and when the first position is reached, the telescopic component is used for abutting against the inner side surface of the naked electric core and heating the naked electric core; when in the second position, the telescopic assembly is separated from the inner side surface of the naked electric core.

Be different from prior art, the inner clamping rod of the technical scheme of this application is used for supporting and presses naked electric core including fixed subassembly and flexible subassembly, fixed subassembly. The telescopic component moves between a first position and a second position to complete telescopic operation, and when the telescopic component is located at the first position, the telescopic component is used for abutting against the inner side surface of the bare cell and heating the bare cell; when the flexible subassembly was located the second position, the inboard surface separation of flexible subassembly and naked electric core. Therefore, when naked electric core manufacturing equipment clamps the naked electric core from a winding needle and applies external force to pull the naked electric core to an oval shape, extra pressure and high temperature are applied to a contact position through the telescopic assembly at the clamping position, so that the clamping position is shaped more quickly; under the action of temperature, the bonding effect of the isolating film of the inner ring of the bare cell and the pole piece of the outer ring is increased, and the problems that the isolating film of the inner ring is separated from a winding layer and is staggered can be effectively reduced; the corners of the inner ring isolating membrane can be effectively heated, and the problems of folds and loose cores which possibly occur on the large surface of the isolating membrane of the inner ring of the bare cell are reduced.

As an embodiment of the present invention, the fixing member has a first communicating portion through which at least a part of the telescopic member passes to move between the first position and the second position.

So, flexible subassembly at least part can stretch out or return through first intercommunication portion, to the heating of the inboard surface of naked electric core when stretching out, near the wall body of first intercommunication portion can support and press naked electric core and make flexible subassembly and the naked electric core surface that supports and press break away from during the withdrawal.

As an embodiment of the present invention, the fixing component includes a base plate and a fixing member connected to the base plate, and the first communicating portion is disposed on the fixing member.

So, can be used for supporting the inboard of pressing naked electric core through the mounting, fix the inboard of naked electric core, the base plate can drive the mounting and remove together, changes the position of mounting.

As an embodiment of the present invention, the telescopic assembly includes a protrusion, at least a portion of the protrusion passes through the first communicating portion to move between the first position and the second position.

So, can pass first intercommunication portion through the arch, stretch out to lean on the inboard of naked electric core, heat the inboard of naked electric core, withdraw after the heating is accomplished protrudingly, facilitate the use.

As an embodiment of the present invention, the telescopic assembly includes a support rod, the protrusion is disposed on the support rod, the substrate is provided with a second communicating portion, and the support rod is configured to move in the second communicating portion.

Thus, the supporting rod can move in the second communication part through the protrusion arranged on the supporting rod, and the protrusion can be driven to extend or retract as long as the supporting rod is driven to move.

As an embodiment of the present invention, the retractable assembly further includes a first power unit, the first power unit is connected to the supporting rod to drive the supporting rod to move in the second communicating part.

So, can be through the removal of a power unit accurate control bracing piece, the height that the arch on the bracing piece stretches out first intercommunication portion can be controlled, and convenient flexible subassembly can adapt to the design production demand of different naked electric cores to the inboard heating of naked electric core.

As an embodiment of the present invention, the bare cell manufacturing apparatus further includes a second power unit connected to the substrate, the second power unit is used for driving the substrate to move.

So, can drive the base plate in order to drive the mounting through second power pack, through the position of second power pack control mounting, make things convenient for the mounting to fix naked electric core to the design production demand of the different naked electric cores of adaptation.

As an embodiment of the utility model, flexible subassembly adopts the heat conduction material to make, naked electric core manufacture equipment still includes the heater, the heater is used for right flexible subassembly heating, in order to control the temperature of flexible subassembly.

Therefore, the telescopic component is made of heat conducting materials, and the heater is used for heating the telescopic component so as to control the temperature of the telescopic component; the corner heating of naked electric core inner circle is accelerated through the flexible subassembly for the design of the corner of naked electric core inner circle increases the corner of naked electric core inner circle and the bonding effect of outer lane.

As an embodiment of the utility model, naked electric core manufacture equipment still includes temperature sensor and controller, temperature sensor is used for detecting the temperature of flexible subassembly, and will the temperature signal of flexible subassembly sends for the controller, the controller basis the temperature signal control of flexible subassembly the heater.

Therefore, the temperature of the telescopic assembly is detected through the temperature sensor, and the controller controls the heater according to the temperature signal of the telescopic assembly to heat the telescopic assembly; the temperature of heating can be regulated and control, can heat up when contacting the corner of naked electric core inner circle, can control the time that rate of rise and temperature kept.

As an embodiment of the utility model, naked electric core manufacture equipment still includes outer clamping bar, outer clamping bar is used for setting up the outside of naked electric core is in order to support the pressure the outside surface of naked electric core.

So, through interior clamping bar and outer clamping bar respectively from inboard and the naked electric core of outside centre gripping for the interior outer balanced atress of naked electric core, the pressure of clamping bar and outer clamping bar pair naked electric core in the convenient control.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for a person skilled in the art to obtain other drawings based on the drawings without any creative effort.

Fig. 1 is a schematic structural diagram of a bare cell according to an embodiment of the present application;

FIG. 2 is a schematic structural view of a retraction assembly according to an embodiment of the present application in a first position;

FIG. 3 is a schematic structural view of a retraction assembly according to an embodiment of the present application in a second position;

FIG. 4 is a perspective view of a retraction assembly according to one embodiment of the present application in a first position;

FIG. 5 is a perspective view of a retraction assembly according to one embodiment of the present application in a second position;

fig. 6 is a schematic partial view of the bare cell manufacturing apparatus according to an embodiment of the present application;

fig. 7 is a schematic partial view of a bare cell manufacturing apparatus according to another embodiment of the present application;

fig. 8 is an exploded view of the bare cell manufacturing apparatus according to an embodiment of the present application;

FIG. 9 is a schematic view of a fastener according to an embodiment of the present application;

fig. 10 is a schematic view illustrating the substrate and the fixing member according to an embodiment of the present application. (ii) a

FIG. 11 is a schematic view of the engagement of the protrusion with the first communication portion according to one embodiment of the present application;

FIG. 12 is a schematic structural view of a retraction assembly according to an embodiment of the present application;

FIG. 13 is a schematic view of the substrate and the support rods according to one embodiment of the present application;

FIG. 14 is a block diagram of a system for cooperating a temperature sensor with the heater according to one embodiment of the present application.

Description of reference numerals:

1. a naked electric core is arranged on the outer surface of the battery body,

11. a first pole piece, a second pole piece,

12. a second pole piece is arranged on the first pole piece,

13. the separation film is arranged on the surface of the substrate,

2. the inner clamping rod is arranged at the inner side of the clamping rod,

21. the fixing component is used for fixing the fixing component,

211. a fixing member for fixing the fixing member to the fixing member,

2112. the first communication part is provided with a first communication part,

212. a substrate, a first electrode and a second electrode,

2121. the second communication part is provided with a second communication part,

22. the telescopic component is arranged on the upper part of the frame,

221. a supporting rod is arranged on the supporting rod,

222. the convex part is arranged on the upper surface of the base,

4. a heater for heating the liquid in the container,

5. a temperature sensor is arranged at the bottom of the shell,

6. a controller for controlling the operation of the electronic device,

7. the outer clamping rod is arranged on the outer side of the inner clamping rod,

200. naked electric core manufacture equipment.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless specified or indicated otherwise; the terms "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, integrally connected, or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present embodiment can be understood by those of ordinary skill in the art according to specific situations.

In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described with reference to the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

With the spread of batteries in many fields such as the field of electric vehicles, battery safety accidents sometimes occur. In most serious battery safety accidents, the batteries can catch fire or even explode. Some of the causes of the ignition or explosion of the battery are due to the formation of defective structures in the bare cell of the battery during the process, such as separation of the inner ring separator, wrinkling of the separator, etc. However, many processes in the production process of the bare cell may cause the bare cell to form inner ring isolation films to break away and the isolation films to wrinkle, so that the process of tracing the equipment problem is difficult; therefore, the reasons for separation and crumpling of the inner ring isolating membrane of a part of formed bare cell are not easy to find, so that the excellent rate of the process production is influenced for a long time, and the safety accidents of the battery are frequent.

The existing battery manufacturing comprises a process link of winding a bare cell, and in the process, the problems of separation and wrinkling of an inner ring isolating membrane are easy to occur. Usually, the structure of the innermost ring is formed by winding the isolating film for several circles in the winding process of the naked electric core, and then the pole piece is wound into the structure of the winding type naked electric core. After the winding is finished, blanking is carried out on the wound bare cell. Generally, the problem that the inner ring isolating membrane of the naked electric core breaks away from and is crumpled is related to uneven tension control during unreeling and coiling in the industry, and the process is simple and short in process time due to the fact that the process of unloading after coiling (namely, the naked electric core is taken down from a coiling needle), so that the process is often ignored by related personnel and cannot be considered to be related to the problem that the inner ring isolating membrane of the naked electric core breaks away from and is crumpled. In addition, current naked electric core manufacture equipment is in order to avoid appearing naked electric core inner circle barrier film at the unloading in-process and breaking away from or the fold scheduling problem, has used the clamping bar to clip naked electric core edge at the unloading in-process to with naked electric core from rolling up to drag to oval after the needle is got to the material, rethread cylinder flattens naked electric core. Therefore, it is generally believed that the blanking process of the bare cell is not one of the reasons for the above problems of the bare cell.

However, the applicant finds that after the naked electric core is clamped by using the existing naked electric core manufacturing equipment, the inner ring isolation film is loosened and separated at the corner in part of the naked electric core, the inner ring isolation film generates wrinkles at adjacent layers or at the corner, and even the isolation film is dislocated at the corner along the extraction direction of the clamping rod. Through research and experiment of an applicant, the isolation films at the inner ring corners of the bare cell can be separated and dislocated due to stress release in the process of taking out the bare cell through stress relief of the clamping rod, so that the safety of the battery is affected.

Based on above consideration, the applicant has designed a naked electric core manufacture equipment, and this naked electric core manufacture equipment is including being provided with telescopic component's interior clamping bar, and telescopic component can stretch out to support and press the inboard surface of electric core to be used for heating naked electric core, and the withdrawal is in order to break away from the inboard surface of naked electric core after the heating. The naked electric core manufacture equipment of this application design can effectively reduce naked electric core and produce naked electric core inner circle in unloading process and break away from, inner circle fold scheduling problem to the rate of excellence when improving naked electric core production, and improve the security performance of battery in the use.

The structure of naked electric core 1 in this application embodiment is as shown in fig. 1. Referring to fig. 1, the bare cell 1 is a winding structure, and the bare cell 1 may include a first pole piece 11, a second pole piece 12, and an isolation film 13 disposed between the first pole piece 11 and the second pole piece 12. The first pole piece 11 and the second pole piece 12 have opposite polarities, the first pole piece 11 and the second pole piece 12 can be a positive pole piece and a negative pole piece, respectively, and the isolation film 13 is disposed between the first pole piece 11 and the second pole piece 12 to isolate the first pole piece 11 and the second pole piece 12 from each other. At least one layer of isolating film 13 can be wound on the innermost ring of the bare cell 1, and in the actual production process, the structure can be formed by winding several layers of isolating films 13 and then winding the pole piece.

Referring to fig. 2 and fig. 3, an embodiment of the present application relates to a bare cell manufacturing apparatus 200, where the bare cell manufacturing apparatus 200 includes an inner clamping bar 2, and the inner clamping bar 2 is configured to be disposed on an inner side of a bare cell 1; the inner clamping rod 2 comprises a fixing component 21 and a telescopic component 22, the fixing component 21 is used for abutting against the inner side surface of the naked electric core 1, the telescopic component 22 is configured to move between a first position and a second position, and when the telescopic component 22 is at the first position, the telescopic component 22 is used for abutting against the inner side surface of the naked electric core 1 and heating the naked electric core 1; when flexible subassembly 22 was in the second position, the inboard surface separation of flexible subassembly 22 and naked electric core 1.

In some embodiments, please continue to refer to fig. 2 and fig. 3, the bare cell manufacturing apparatus 200 includes an inner clamping rod 2 and an outer clamping rod 7, when the bare cell 1 is clamped, the inner clamping rod 2 is used to extend into the inner side of the bare cell 1 and to press the inner side surface of the bare cell 1, and the outer clamping rod 7 is used to be disposed at the outer side of the bare cell 1 to press the outer side surface of the bare cell 1. In this embodiment, interior clamping bar 2 and outer clamping bar 7 can be the same structure, interior clamping bar 2 and outer clamping bar 7 can be rod-like structure, but this embodiment does not restrict the concrete structure of interior clamping bar 2 and outer clamping bar 7, both also can be different structures, both can all be for platelike, cubic, strip structure etc. as long as can set up in the inboard and the outside of naked electric core 1, support during the use and press at the inboard surface and the outside surface of naked electric core 1, can be used for exporting the clamping-force of naked electric core 1, all in the protection scope of this embodiment.

In addition, the inner clamping rod 2 and the outer clamping rod 7 can be made of materials with certain rigidity such as steel, so that the inner clamping rod 2 and the outer clamping rod 7 are not easy to deform in the using process or the part dismounting process, and the moving precision of the inner clamping rod 2 and the moving precision of the outer clamping rod 7 in the using process can be controlled. In this embodiment, the both ends of naked electric core 1 can all be provided with interior clamping bar 2 and outer clamping bar 7, in other embodiments, can adopt interior clamping bar 2 and outer clamping bar 7 alone in the one end of naked electric core 1, can also arrange interior clamping bar 2 and outer clamping bar 7 in other positions beyond naked electric core 1 both ends, all in the protection scope of this embodiment.

In some embodiments, please continue to refer to fig. 2 and 3, fig. 2 is a schematic structural view of the retraction assembly 22 in the first position, and fig. 3 is a schematic structural view of the retraction assembly 22 in the second position. When the telescopic assembly 22 moves between the first position and the second position, the fixing assemblies 21 are pressed against the inner side surface of the bare cell 1. Specifically, referring to fig. 4, fig. 4 is a perspective view of the retraction assembly 22 in the first position. The extended portion of the telescopic assembly 22 is used for abutting against the inner side surface of the bare cell 1 and heating the same, and after the heating is completed, the telescopic assembly 22 moves to the second position, specifically, please refer to fig. 5, and fig. 5 is a perspective view of the telescopic assembly 22 in the second position. The telescopic assembly 22 is separated from the inner side surface of the bare cell 1.

Optionally, first position and second position can be confirmed according to the size of flexible subassembly 22 and naked electric core 1's size, as long as satisfy when flexible subassembly 22 removes to the first position, flexible subassembly 22 can support and press naked electric core 1's medial surface face, and when flexible subassembly 22 removed to the second position, flexible subassembly 22 can with naked electric core 1's inboard surface separation can.

Thus, after the bare cell manufacturing equipment 200 in this embodiment clamps the bare cell 1, the clamping position of the inner clamping rod 2 can be heated to the inner side surface of the bare cell 1 through the telescopic assembly 22, so that the clamping position can be shaped more quickly; under the action of temperature, the bonding effect of the isolating film at the corner of the inner ring of the bare cell 1 and the pole piece of the outer ring is increased, and the problem that the isolating film at the corner of the inner ring is separated from dislocation can be effectively solved; and through effective heating, fixed corner, the problem of fold and the loose core that the barrier film big face of naked electric core 1 inner circle probably appears has been reduced. The process has high quality rate and high safety.

In some embodiments, the stationary assembly 21 is provided with a first communication portion 2112, and at least a portion of the telescoping assembly 22 passes through the first communication portion 2112 to move between the first position and the second position. In this embodiment, referring to fig. 6 and 7, the first communication portion 2112 may be a through hole or an opening penetrating at least a portion of the wall body of the fixing component 21, so as to facilitate the movement of the retractable component 22 between the first position and the second position.

Alternatively, first communication 2112 may be provided as one or more through-holes or openings, and the shape and size of the through-holes or openings may be adapted to the size design of the extension portion of retraction assembly 22. Like this, telescopic component 22 moves between first position and second position for example telescopic component 22 moves to the second position from the first position, telescopic component 22 can break away from naked electric core 1's inboard surface through first intercommunication portion 2112, because the fixed subassembly 21 that is equipped with first intercommunication portion 2112 still supports and presses at naked electric core 1's inboard surface, like this, can reduce because the heating back telescopic component 22 bonds the partial barrier film 13 of naked electric core 1's inboard surface and makes naked electric core 1's structure suffer destruction.

In some embodiments, please refer to fig. 8, fig. 8 is an exploded view of the bare cell manufacturing apparatus 200. The fixing assembly 21 includes a base plate 212 and a fixing member 211 coupled to the base plate 212, and a first communicating portion 2112 is provided on the fixing member 211. Referring to fig. 9, fig. 9 is a schematic structural view of the fixing member 211. Fixing member 211 is the part that is arranged in fixing member 21 to stretch into naked electric core 1's inboard surface in order to support the inboard surface of pressing naked electric core 1, fixing member 211 can offset with the inboard of curved surface and naked electric core 1, like this, can reduce the risk that produces stress concentration at naked electric core 1's inboard surface when supporting and pressing, use fixing member 211 to indicate as the drum structure in the picture, this structure can reduce the risk that stress concentration appears in naked electric core 1's inboard when supporting and pressing, but fixing member 21 still can be for the semi-cylindrical or process have other shapes of smooth curved surface.

Referring to fig. 10, fig. 10 is a schematic view illustrating the substrate 212 and the fixing element 211 being engaged with each other. Base plate 212 and mounting 211 can be for two parts that separately provide, can be through welding or joint connection mode such as joint with mounting 211 on base plate 212, like this, can drive mounting 211 through base plate 212 motion to can remove mounting 211 and support the inboard surface of pressing naked electric core when interior clamping bar 2 stretches into the inboard of naked electric core 1. Alternatively, the base plate 212 and the fixing member 211 may be integrally formed, so that the number of parts may be reduced, and further, the complexity of assembling the apparatus may be reduced.

In some embodiments, please refer to fig. 11, fig. 11 is a schematic diagram illustrating the protrusion 222 and the first communication portion 2112. Retraction assembly 22 includes a projection 222, at least a portion of projection 222 being movable between a first position and a second position through a first communication portion 2112, such as through a through hole or opening. Shape and the volume adaptation that protruding 222 can adopt can be in first portion 2112 and the inboard radian of naked electric core 1, optionally, protruding 222 can be the hemisphere, like this, can reduce protruding 222 and cause the probability of destruction to its structure when the inboard of naked electric core 1 of butt, simultaneously, when telescopic component 22 moves to the second position from the primary importance, adopt this kind of shape to be favorable to protruding 222 and its butt and heated surface to break away from more easily.

In some embodiments, please refer to fig. 12, fig. 12 is a schematic structural diagram of the telescopic assembly 22. The telescopic assembly 22 further includes a support rod 221, the protrusion 222 is located on the support rod 221, the base plate 212 is provided with a second communication part 2121, and the support rod 221 is movable in the second communication part 2121. The protrusion 222 is disposed on the supporting rod 221, so that the supporting rod 221 can be used as a transmission member for driving the protrusion 222 to extend or retract into the first communication portion 2112, thereby facilitating the extension and retraction of the telescopic assembly 22.

Optionally, the telescopic assembly 22 is not limited to the embodiment of the support rod 221 and the protrusion 222, and it is within the scope of the present embodiment as long as at least a part of the structure of the telescopic assembly 22 can be extended. As shown in fig. 12, the support rod 221 may extend along the axial direction of the rod, i.e., the direction indicated by the arrow y in the figure, and a plurality of protrusions 222 may be disposed on the support rod 221, and optionally, the plurality of protrusions 222 may be arranged in a row along the direction indicated by the arrow y. In the in-service use process, can set up the quantity of arch 222 according to the width of naked electric core 1 (specifically be the width of naked electric core 1 in the arrow point direction of arrow y in the figure), the width of naked electric core 1 is big more, and the quantity of arch 222 is more, and on the contrary, the width of naked electric core 1 is less, and the quantity of arch 222 is less. The supporting rod 221 can move along the direction indicated by the arrow x in the figure.

In some embodiments, referring to fig. 13, fig. 13 is a schematic view of the substrate 212 and the supporting rod 221 in cooperation. The cross-sectional area of the support rod 221 is smaller than the cross-sectional area of the second communication portion 2121 in the thickness direction of the substrate 212 (specifically, the direction indicated by the arrow y in the drawing). The second connecting portion 2121 may be a through hole or an opening penetrating through the substrate 212, such that a cross-sectional area of the supporting rod 221 along the thickness direction of the substrate 212 is smaller than a cross-sectional area of the second connecting portion 2121, and on one hand, the supporting rod 221 may be movable in the second connecting portion 2121, such as along a direction indicated by an arrow x in the figure, so as to facilitate the extension and retraction of the supporting rod 221. On the other hand, when assembling the fixing member 21 and the telescopic member 22, the support rod may be inserted into the fixing member 211 having a sleeve shape and pass through the base plate 212.

In some embodiments, the telescopic assembly 22 further includes a first power unit (not shown), which is connected to the supporting rod 221 to drive the supporting rod 221 to move in the second communicating portion 2121. So, can be through the removal of first power unit accurate control bracing piece 221, can control the displacement that first intercommunication portion 2112 stretches out to protruding 222 on the bracing piece 221, make things convenient for flexible subassembly 22 to heat naked electric core 1 inboard surface, can adapt to the design production demand of different naked electric cores 1. In the present embodiment, one end of the supporting rod 221 passes through the second communication part 2121 of the base plate 212, so that the supporting rod 221 moves inside the fixing member 211 by the driving of the first power unit. In other embodiments, the second connecting portion 2121 may not be disposed on the substrate 212, the supporting rod 221 may be fixed to the substrate 212, the first power unit may drive the substrate 212 to move, so as to drive the supporting rod 221 to move, and the supporting rod 221 may also move inside the fixing element 211, which is also within the protection scope of this embodiment.

In some embodiments, the bare cell manufacturing apparatus 200 further includes a second power unit (not shown in the figure) connected to the substrate 212, and the second power unit is configured to drive the substrate 212 to move so as to drive the bare cell manufacturing apparatus 200 to clamp the bare cell 1. So, can make things convenient for mounting 211 to fix naked electric core 1 through the position of second power unit control mounting 211, drag naked electric core 1 to oval to adapt to the design production demand of different naked electric cores 1.

In some embodiments, referring to fig. 14, the telescopic assembly 22 is made of a heat conductive material, and the bare cell manufacturing apparatus 200 further includes a heater 4, where the heater 4 is used to heat the telescopic assembly 22 to control the temperature of the telescopic assembly 22. In this way, the telescopic assembly 22 is made of heat conducting material, and the heater 4 is used for heating the telescopic assembly 22 so as to control the temperature of the telescopic assembly 22; the corners of the inner ring of the naked electric core 1 are heated through the telescopic assembly 22, so that the isolation film at the corners of the inner ring of the naked electric core 1 can be bonded with the outer ring pole piece, and the corners of the inner ring of the naked electric core 1 are shaped.

In some embodiments, the bare cell manufacturing apparatus 200 further includes a temperature sensor 5 and a controller 6, the temperature sensor 5 is configured to detect a temperature of the expansion assembly 22 and send a temperature signal of the expansion assembly 22 to the controller 6, and the controller 6 controls a heating power of the heater 4 according to the temperature signal of the expansion assembly 22.

In this embodiment, the temperature sensor 5 is disposed on the telescopic assembly 22, the temperature sensor 5 is electrically connected with the controller 6, and the controller 6 is electrically connected with the heater 4; the temperature sensor 5 detects the temperature of the telescopic assembly 22 and sends a temperature signal to the controller 6, and the controller 6 controls the heater 4 to heat the telescopic assembly 22 according to the temperature signal.

In this way, the temperature of the telescopic assembly 22 is detected by the temperature sensor 5, and the controller 6 controls the heater 4 according to the temperature signal of the telescopic assembly 22 to heat the telescopic assembly 22; the temperature of heating can be regulated and control, can heat up when contacting the corner of naked electric core 1 inner circle, can control the time of rate of rise of temperature and temperature maintenance.

It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a naked electric core manufacture equipment which characterized in that includes:

the inner clamping rod is arranged on the inner side of the naked electric core;

the inner clamping rod comprises a fixing component and a telescopic component, the fixing component is used for abutting against the inner side surface of the naked electric core, the telescopic component is configured to move between a first position and a second position, and when the first position is reached, the telescopic component is used for abutting against the inner side surface of the naked electric core and heating the naked electric core; when in the second position, the telescopic assembly is separated from the inner side surface of the naked electric core.

2. The bare cell manufacturing apparatus according to claim 1, wherein the fixing assembly has a first communication through which at least a portion of the telescoping assembly passes to move between the first position and the second position.

3. The bare cell manufacturing apparatus according to claim 2, wherein the fixing assembly includes a base plate and a fixing member connected to the base plate, and the first communicating portion is disposed on the fixing member.

4. The bare cell manufacturing apparatus according to claim 3, wherein the retraction assembly comprises a protrusion, at least a portion of the protrusion passing through the first communication to move between the first position and the second position.

5. The bare cell manufacturing apparatus according to claim 4, wherein the expansion assembly comprises a support rod, the protrusion is disposed on the support rod, the substrate is provided with a second communication portion, and the support rod is configured to move in the second communication portion.

6. The bare cell manufacturing apparatus according to claim 5, wherein the expansion assembly further comprises a first power unit, and the first power unit is connected to the support rod to drive the support rod to move in the second communicating portion.

7. The bare cell manufacturing apparatus according to claim 3, further comprising a second power unit connected to the base plate, wherein the second power unit is configured to drive the base plate to move.

8. The bare cell manufacturing apparatus according to claim 1, wherein the retractable assembly is made of a thermally conductive material, and further comprising a heater for heating the retractable assembly to control the temperature of the retractable assembly.

9. The bare cell manufacturing apparatus according to claim 8, further comprising a temperature sensor and a controller, wherein the temperature sensor is configured to detect a temperature of the expansion assembly and send the temperature to the controller, and the controller is configured to control a heating power of the heater according to a temperature signal of the expansion assembly.

10. The naked electric core manufacture equipment of claim 1, characterized in that, naked electric core manufacture equipment still includes outer clamping bar, outer clamping bar is used for setting up in the outside of naked electric core is in order to support and press the outside surface of naked electric core.

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