Vehicle fluid storage device and method of manufacturing the same
A vehicle fluid storage device according to the present disclosure include a storage container having a fluid storage space formed inside and an opening portion formed at least one of one side and the other side, a first connector including a first connection region arranged adjacent to the opening portion on the inside of the storage container and a second connection region extending from the first connection region so as to be connectable to an external device, and a holder connected to the first connection region between the storage container and the first connection region and coupled to the storage container by welding.
1 . A vehicle fluid storage device comprising:
a storage container having a fluid storage space formed inside and an opening portion formed on at least one side;
a first connector including a first connection region arranged adjacent to the opening portion on the inside of the storage container and a second connection region extending from the first connection region so as to be connectable to an external device;
a holder connected to the first connection region between the storage container and the first connection region and coupled to the storage container by welding;
a second connector connected to the first connector so as to surround at least a portion of the first connector, wherein the second connector is fastened to the second connection region and is contact with the holder; and
a leak-preventing section configured to maintain airtightness between the first and second connectors, wherein the leak-preventing section includes:
a first ring member arranged between the holder that surrounds the first connection region and the second connector;
a second ring member arranged adjacent to an end of the holder between the first connection region and the second connection region; and
a third ring member arranged between the first connection region and the second connection region.
2 . The vehicle fluid storage device of claim 1 , wherein the storage container and the holder include a plastic material,
the first and second connectors each include metal, and
the first connection region and the holder are connected by insert injection.
3 . The vehicle fluid storage device of claim 1 , wherein a burr receiver configured to accommodate a burr generated by the welding is formed between the storage container and the holder.
4 . The vehicle fluid storage device of claim 3 , wherein the burr receiver is formed to be recessed in an outer diameter portion of the holder facing an inner wall of the storage container.
5 . The vehicle fluid storage device of claim 3 , wherein the burr receiver is formed to be recessed in the second connector between the storage container and the holder.
6 . The vehicle fluid storage device of claim 1 , wherein the leak-preventing section includes at least one of an O-ring and an injection-molded backup ring.
7 . The vehicle fluid storage device of claim 1 , wherein the holder further includes at least one insertion member inserted into at least one connection groove formed to be recessed in the first connection area, and
at least one of the insertion members has a cross-section tapered from the inside of the connection groove to the outside of the connection groove.
8 . The vehicle fluid storage device of claim 1 , wherein the vehicle fluid storage device further includes a reinforcing layer arranged to surround at least a part of the storage container to reinforce strength, and
the reinforcing layer includes at least one of a carbon fiber composite material and a glass fiber composite material.
9 . The vehicle fluid storage device of claim 1 , wherein the storage container is formed by blow molding.
10 . The vehicle fluid storage device of claim 1 , wherein the welding includes at least one of spin welding and laser welding.
11 . An assembly, the assembly comprising:
a plurality of the vehicle fluid storage devices; and
a connection section configured to connect the vehicle fluid storage devices to an external device,
wherein each of the vehicle fluid storage devices includes:
a storage container having a fluid storage space formed inside and an opening portion formed on at least one side;
a first connector including a first connection region arranged adjacent to the opening portion on the inside of the storage container and a second connection region extending from the first connection region so as to be connectable to the connection section;
a holder connected to the first connection region between the storage container and the first connection region and coupled to the storage container by welding;
a second connector connected to the first connector so as to surround at least a portion of the first connector, wherein the second connector is fastened to the second connection region and is contact with the holder; and
a leak-preventing section configured to maintain airtightness between the first and second connectors, wherein the leak-preventing section includes:
a first ring member arranged between the holder that surrounds the first connection region and the second connector;
a second ring member arranged adjacent to an end of the holder between the first connection region and the second connection region; and
a third ring member arranged between the first connection region and the second connection region.