US 12,029,287 B2
Manufacturing method of wristband embedded with multiple groups of electrode pieces
Bing Ye, Hangzhou (CN); Baitong Wang, Hangzhou (CN); and Edward Keefer, Dallas, TX (US)
Assigned to Fasikl Incorporated, Dallas, TX (US); and Hangzhou Fasikl Technology Co., Ltd, Hangzhou (CN)
Filed by Fasikl Incorporated, Dallas, TX (US); and Hangzhou Fasikl Technology Co., Ltd, Hangzhou (CN)
Filed on Mar. 7, 2023, as Appl. No. 18/118,134.
Prior Publication US 2023/0200503 A1, Jun. 29, 2023
Int. Cl. B29C 45/14 (2006.01); A44C 27/00 (2006.01)
CPC A44C 27/00 (2013.01) 8 Claims
OG exemplary drawing
 
1. A manufacturing method of a wristband embedded with multiple groups of electrode pieces, wherein the wristband comprises electrode pieces, a band main body, a flexible printed circuit (FPC) assembly and a sealing belt;
S1: the electrode pieces are selected from metal electrode pieces or silica gel electrode pieces;
S2: the multiple electrode pieces are placed in a corresponding die cavity; liquid silica gel is injected into the die cavity, and the band main body is formed after the liquid silica gel is cooled; circumferential sides of the multiple electrode pieces are all wrapped and fixed by the band main body, and binding surfaces of the multiple electrode pieces slightly protrude from an inner side surface of the band main body;
S3: the FPC assembly includes an FPC flexible flat cable and an upper cover plate; a start end of the FPC flexible flat cable is matched with the upper cover plate; the upper cover plate is covered on the FPC flexible flat cable; one boss is arranged on each of two sides of an upper surface of the upper cover plate; the two bosses are both provided with a plurality of mounting holes; a plugboard type pin is arranged in each mounting hole; the plugboard type pins penetrate through the upper cover plate; plugging holes matched with the plugboard type pins are formed in the start end of the FPC flexible flat cable; tail ends of the plugboard type pins are respectively plugged into the multiple plugging holes and are welded and fixed; bonding pads corresponding to the number of the electrode pieces are arranged on an inner side surface of the FPC flexible flat cable; two conduction pin are welded on each bonding pad;
S4: two hole locations matched with the conduction pins are reserved on a back side of each electrode piece; the multiple conduction pins are embedded into the multiple hole locations in a one-to-one correspondence manner; the FPC assembly naturally bends and fits to an outer side surface of the band main body;
S5: the band main body, the electrode pieces and the FPC assembly which are connected into a whole are placed in another corresponding die cavity; liquid silica gel is injected for the second time; the sealing belt is formed after the liquid silica gel injected for the second time is cooled; the sealing belt and the band main body wrap the FPC assembly; two openings matched with the bosses are reserved on the sealing belt; the two bosses pass through the two openings in a one-to-one correspondence manner; and the binding surfaces of the multiple electrode pieces slightly protrude from the inner side surface of the band main body, thus completing the manufacturing of the wristband.