Flow-coating apparatus and flow-coating method
A flow-coating apparatus is configured to flow-coat a member to be flow-coated with an insulation layer, where the member to be flow-coated includes a first surface and an outer peripheral surface surrounding a periphery of the first surface, the first surface being perpendicular to a vertical direction. The flow-coating apparatus includes a first flow-coating mechanism and a second flow-coating mechanism, where a flow-coating opening of the first flow-coating mechanism faces the first surface and is configured to flow-coat the first surface with the insulation layer; and a flow-coating opening of the second flow-coating mechanism faces the outer peripheral surface and is configured to flow-coat the outer peripheral surface with the insulation layer.
1 . A flow-coating apparatus, configured to flow-coat a member to be flow-coated with an insulation layer, wherein the member to be flow-coated comprises a first surface and an outer peripheral surface surrounding a periphery of the first surface perpendicular to a vertical direction, the flow-coating apparatus comprising:
a first flow-coating mechanism, wherein a flow-coating opening of the first flow-coating mechanism faces the first surface and is configured to flow-coat the first surface with the insulation layer;
a second flow-coating mechanism, wherein a flow-coating opening of the second flow-coating mechanism faces the outer peripheral surface and is configured to flow-coat the outer peripheral surface with the insulation layer;
a rotation mechanism comprising a rotation cylinder or a drive motor, and configured to drive the member to be flow-coated to rotate around a central axis;
a recycling groove located under the member to be flow-coated in the vertical direction and above the rotation mechanism in the vertical direction;
a liquid supply mechanism comprising a hydraulic pump, wherein at least one of the first flow-coating mechanism or the second flow-coating mechanism communicates with the recycling groove via the hydraulic pump; and
a gas suction mechanism located above the rotation mechanism in the vertical direction.
2 . The flow-coating apparatus according to claim 1 , wherein the outer peripheral surface comprises multiple pairs of side surfaces disposed opposite each other, and the second flow-coating mechanism comprises multiple flow-coating assemblies, wherein the multiple flow-coating assemblies are configured to flow-coat the multiple pairs of side surfaces, respectively.
3 . The flow-coating apparatus according to claim 2 , wherein each side surface in at least one pair of side surfaces is correspondingly provided with a flow-coating assembly of the multiple flow-coating assemblies.
4 . The flow-coating apparatus according to claim 2 , wherein at least one side surface is correspondingly provided with multiple flow-coating assemblies.
5 . The flow-coating apparatus according to claim 2 , further comprising:
a delivery mechanism configured to deliver multiple members to be flow-coated along a delivery direction;
wherein the multiple flow-coating assemblies are spaced apart along the delivery direction, and the multiple flow-coating assemblies are disposed corresponding to the multiple members to be flow-coated, respectively.
6 . The flow-coating apparatus according to claim 1 , further comprising:
a bearing boss, wherein the bearing boss comprises a bearing surface and a positioning groove formed by the bearing surface being recessed inwards, the member to be flow-coated being placed on the bearing boss via the positioning groove.
7 . The flow-coating apparatus according to claim 6 , wherein the bearing boss further comprises a gas channel communicating with the gas suction mechanism, the gas channel comprises a gas orifice provided on the bearing surface, and the gas suction mechanism attracts the member to be flow-coated onto the bearing surface via the gas orifice.
8 . The flow-coating apparatus according to claim 1 , wherein:
the member to be flow-coated is a battery cell, wherein the battery cell comprises a housing and a top cover plate, the top cover plate is disposed at one side of the housing and covers an opening of the housing, and the housing comprises a bottom wall opposite the top cover plate and a side wall surrounding a periphery of the bottom wall; and
wherein a side of the bottom wall facing away from the top cover plate is the first surface, and a side of the side wall facing away from the opening is the outer peripheral surface.
9 . The flow-coating apparatus according to claim 1 , further comprising:
a delivery mechanism configured to deliver the member to be flow-coated along a delivery direction;
wherein the recycling groove is located above the delivery mechanism in the vertical direction.
10 . The flow-coating apparatus according to claim 1 , further comprising:
a bearing boss located above the rotation mechanism in the vertical direction, and comprising a bearing surface and a gas channel communicating with the gas suction mechanism, the gas channel being located between the rotation mechanism and the bearing surface in the vertical direction.
11 . A flow-coating method for flow-coating a member to be flow-coated performed by the flow-coating apparatus according to claim 1 , wherein the member to be flow-coated comprises a first surface and an outer peripheral surface surrounding a periphery of the first surface perpendicular to a vertical direction, the flow-coating method comprising:
providing the first flow-coating mechanism and the second flow-coating mechanism; and
performing flow-coating on the first surface and the outer peripheral surface using the first flow-coating mechanism and the second flow-coating mechanism.
12 . The flow-coating method according to claim 11 , wherein performing flow-coating on the first surface and the outer peripheral surface using the first flow-coating mechanism and the second flow-coating mechanism includes the first flow-coating mechanism and the second flow-coating mechanism performing flow-coating on the first surface and the outer peripheral surface at the same time.
13 . The flow-coating method according to claim 11 , wherein:
the second flow-coating mechanism comprises multiple flow-coating assemblies spaced apart; and
performing flow-coating on the first surface and the outer peripheral surface using the first flow-coating mechanism and the second flow-coating mechanism comprises:
using a delivery mechanism to drive multiple members to be flow-coated to move along a delivery direction; and
performing, by the multiple flow-coating assemblies, flow-coating on the outer peripheral surfaces of the multiple members to be flow-coated, respectively.
14 . The flow-coating method according to claim 11 , wherein performing flow-coating on the first surface and the outer peripheral surface using the first flow-coating mechanism and the second flow-coating mechanism comprises:
using the rotation mechanism to drive rotation of the member to be flow-coated, to allow the second flow-coating mechanism to perform flow-coating on different zones of the outer peripheral surface of the member to be flow-coated.
15 . The flow-coating method according to claim 11 , further comprising:
performing drying on a flow-coated device, wherein a drying temperature is 40° C. to 100° C., and a drying time is 1 min to 15 min.