Oven

Abstract

The invention provides an oven. The oven comprises an oven body with an opening in one side, an oven door, an upper liquid delivery pipe, a lower liquid delivery pipe, an upper ventilation pipe, a lower ventilation pipe and a vacuum pipe, wherein the oven body comprises an outer wall, an inner wall arranged in the outer wall in a sleeving manner, and a sandwich layer which is located between the outer wall and the inner wall and is spaced from the outer wall and the inner wall; an airtight outer hollow layer is enclosed by the outer wall and the sandwich layer, and an airtight inner hollow layer is enclosed by the sandwich layer and the inner wall; one side of the oven door is movably connected with the oven body, the oven door can be in seal fit with the oven body, and an inner space is formed by the oven door and the inner wall; the upper liquid delivery pipe and the lower liquid delivery pipe are separately located at the two ends of the oven body and communicate with the inner hollow layer; the upper liquid delivery pipe, the lower liquid delivery pipe and the inner hollow layer are used for the circulation of heat conducting liquid; the upper ventilation pipe and the lower ventilation pipe are separately located at the two ends of the oven body and communicate with the inner space, and the upper ventilation pipe, the lower ventilation pipe and the inner space are used for the circulation of dry air; and the vacuum pumping pipe communicates with the outer hollow layer.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of baking equipment, in particular to an oven. [0003] 【Background technique】 [0004] Lithium batteries are widely used in many fields, especially the electronics industry, due to their outstanding characteristics such as high working voltage, large specific energy, and small self-discharge. Moisture control is very critical in the production process of lithium batteries. Whether it is a wound structure battery or a laminated battery, the battery needs to be baked to remove the moisture in each material before liquid injection. At present, the industry generally adopts electric heating ovens for baking, while electric heating ovens use electric heating wires for heating, and there are the following defects: [0005] 1. Uneven heating: the local temperature of the heating wire is high, and the temperature of the place far away from the heating wire is relatively low, which leads to inconsistent eff...

AI Technical Summary

Problems solved by technology

[0005] 1. Uneven heating: the local temperature of the heating wire is high, and the temperature of the place far away from the heating wire is relatively low, which leads to inconsistent effects of water removal during battery cell baking and affects the baking effect

[0006] 2. Long heating and cooling time: the rate of radiation heating is low, and the conversion efficiency is low; it takes a long time to rely on the natural cooling of the box to cool down

[0007] 3. Poor heat preservation effect: the commonly used electric core oven has no special heat preservation device, and it is difficult to maintain the temperature in the oven

[0008] 4. The heat lost by cooling cannot be used: by natural cooling, the heat is taken away by the outside air and cannot be recycled, which increases the cost of cell baking

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