Lithium battery electric core vacuum bakeout device
Technical field
The utility model belongs to battery manufacturing equipment technical field, more particularly, relates to a kind of apparatus for baking of lithium ion battery cell.
Background technology
Along with flexible packing lithium ion battery application is constantly expanded, producing battery producer and get more and more, in order to ensure the market competitiveness, except needing to ensure good product quality, also needing to enhance productivity.In the production process of lithium battery, the baking of battery battery core is very important operation, and the object of this operation is the moisture existed in removing battery, prevents potential safety hazard.Current lithium ion battery vacuum bakeout equipment is the mode adopting whole multi-layer vacuum blast heating baking oven, every layer is only had both sides box wall heating tube to heat, placing battery adopts the mode of stacking placement, and the drawback of this oven structure is non-uniform temperature in casing, and central area is lower than tank wall regional temperature, therefore, the battery of central area is difficult to ensure baking quality, needs to increase baking time, causes production efficiency low, waste energy, and stacking placement easily causes battery bad order.
Utility model content
The purpose of this utility model is to provide a kind of lithium battery electric core vacuum bakeout device.
To achieve these goals, the utility model takes following technical solution:
Lithium battery electric core vacuum bakeout device, comprising: base plate, and described base plate is provided with column; Be arranged at the top board on described column top; Sealed vacuum casing between described base plate and described top board, described sealed vacuum casing can move between described base plate and described top board, and can be sealed and matched with described base plate; Be arranged at the battery core fixture on described base plate, described battery core fixture comprises fixture support body, multiple interval arranges with the aluminium pressing plate on described fixture support body, is arranged at the silicone rubber heating plate on described aluminium pressing plate and drives the screw mandrel of described aluminium pressing plate movement, and battery core is positioned on aluminium pressing plate.
One as the utility model lithium battery electric core vacuum bakeout device is improved, and four Angle Position of described base plate are provided with 4 root posts.
One as the utility model lithium battery electric core vacuum bakeout device is improved, described top board is provided with cylinder, the piston rod of described cylinder passes described top board, fixes with described sealed vacuum casing top, is with dynamic-seal vacuum casing vertically to move during cylinder action.
One as the utility model lithium battery electric core vacuum bakeout device is improved, the sealing ring that the shape described base plate being provided with size and sealed vacuum casing adapts.
One as the utility model lithium battery electric core vacuum bakeout device is improved, and described sealed vacuum casing is provided with guide pillar, and described guide pillar upwards passes described top board, and described top board is provided with the guide pin bushing passed for described guide pillar.
One as the utility model lithium battery electric core vacuum bakeout device is improved, and described sealed vacuum casing is provided with wiring hole and vacuum pipe hole.
From above technical scheme, the utility model adopts the battery core fixture that can heat, battery core fixture is positioned at the airtight vacuum environment that sealed vacuum casing and base plate are formed, adopt fixture to heat battery core, homogeneous heating and add battery pressurization function, while heated baking, return battery pressurization, thus guarantee baking quality, shorten drying time, energy savings, avoids battery to stack and causes bad order.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment, simple introduction is done below by the accompanying drawing used required in embodiment or description of the prior art, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation of the utility model heating press fixture.
Embodiment
As shown in Figure 1, lithium battery electric core vacuum bakeout device of the present utility model comprises base plate 1, column 2, sealed vacuum casing 3, top board 4, cylinder 5 and battery core fixture 6.Battery core fixture 6 is placed on base plate 1.Four Angle Position of base plate 1 are provided with 4 root posts 2, and top board 4 is arranged at the top of column 2, and sealed vacuum casing 3 is between top board 4 and base plate 1.Cylinder 5 is arranged on top board 4, and the piston rod of cylinder 5 fixes through top board 4 and sealed vacuum casing 3 top, during cylinder 5 action, dynamic-seal vacuum casing 3 can be with vertically to move up and down.Base plate 1 is provided with sealing ring 1a, the size of sealing ring 1a and the shape of sealed vacuum casing 3 adapt, when cylinder 5 promote sealed vacuum casing 3 be moved downward on base plate 1 time, sealing ring 1a on base plate can be sealed and matched with sealed vacuum casing 3, make box body tightness good, ensure good vacuum environment.Sealed vacuum casing 3 is provided with wiring hole 3a and vacuum pipe hole 3b.The present embodiment adopts cylinder to control sealed vacuum casing and moves, but also can adopt oil cylinder, screw mandrel etc. to control the movement of sealed vacuum casing.
Sideslip during in order to ensure that sealed vacuum casing moves up and down further, as a preferred embodiment of the present utility model, sealed vacuum casing 3 is provided with guide pillar 7, guide pillar 7 is arranged at the top of sealed vacuum casing 3, and upwards pass top board 4, be provided with guide pin bushing 8 on the top plate 4, guide pillar 7 is through guide pin bushing 8.The present embodiment is provided with 4 guide pillars 7 altogether, top board 4 correspondence position is provided with 4 guide pin bushings 8, and each root guide pillar 7 is through a guide pin bushing 8, when cylinder 5 is with dynamic-seal vacuum casing 3 to move, guide pillar 7 can ensure that sealed vacuum casing 3 moves along guide pillar, prevents sideslip, and impact is sealed and matched with sealing ring.
As shown in Figure 2, battery core fixture 6 of the present utility model is heating press fixture, it comprises fixture support body 6-1, aluminium pressing plate 6-2, silicone rubber heating plate 6-3 and screw mandrel 6-4, and several aluminium pressing plates 6-2 is arranged at intervals on fixture support body 6-1, and silicone rubber heating plate 6-3 is arranged on aluminium pressing plate 6-2.Battery core is positioned on every layer of aluminium pressing plate 6-2, during rotary screw 6-4, aluminium pressing plate 6-2 can be driven to move, thus clamps the battery core be positioned on aluminium pressing plate 6-2, makes battery core stressed.
Below the course of work of the utility model vacuum bakeout device is described:
Battery core is put into battery core fixture 6, rotary screw 6-4 makes aluminium pressing plate 6-2 battery core be clamped, sealed vacuum casing 3 is made to be displaced downwardly on base plate 1, base plate 1 coordinates with sealed vacuum casing 3, composition containment housing, is extracted out by the gas in sealed vacuum casing by vacuumizing, thus also make battery core fixture power on in-core gas extract out, be beneficial to flash baking moisture, silicone rubber heating plate generates heat, and the battery core be clipped in wherein is heated evenly.Vacuum bakeout device of the present utility model can make the battery in casing be in a hermetically drying environment, be conducive to flash baking moisture, and adopt heatable battery core fixture, realize homogeneous heating, also add battery pressurization function, battery pressurization is returned while heated baking, the defect that the heating of existing roasting mode is uneven can be solved, ensure baking quality, shorten drying time, energy savings, avoids battery to stack and causes bad order.
Above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although be described in detail the utility model with reference to above-described embodiment, those of ordinary skill in the field are to be understood that, still can modify to embodiment of the present utility model or equivalent replacement, and not departing from any amendment of the utility model spirit and scope or equivalent replacement, it all should be encompassed among right of the present utility model.