# US 11,114,871 B2 · Smart wearable device and charger thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,114,871 B2 - Document ID: US11114871B2 - Status: Granted - Kind: B2 - Application number: 16/485,791 - Filed: 2017-05-27 - Published: 2020-02-13 - Granted: 2021-09-07 - Earliest claimed: 2017-02-14 - Assignees: Jrd Communication Inc. - Applicants: JRD Communication Inc. - Inventors: Wangfa Zhan - Web page: https://patentgrep.com/patent/US11114871B2 ## CPC - H02J 7/731: {specially adapted for holding portable devices containing batteries (H02J7/751 takes precedence)} - H01R 13/2414: {conductive elastomers} - H02J 7/00: Circuit arrangements for charging or discharging batteries or for supplying loads from batteries - H05K 7/1427: {Housings} - H01R 13/2421: {using coil springs} - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract A smart wearable device and a charger thereof includes the smart wearable device and a charging base configured to charge the smart wearable device. The charging base comprises an elastic case. An open slot for inserting the smart wearable device is formed in the elastic case. A power supply portion is disposed on the charging base. The power supply portion provides the smart wearable device with electrical energy for charging. The smart wearable device is fixed to the charging base by way of a close fit between slot walls on two sides of the open slot and an outer surface of the smart wearable device. ## Claims ### Claim 1 A smart wearable device and a charger thereof comprising: the smart wearable device; and a charging base configured to charge a smart wearable device, the charging base comprising: an elastic case; an open slot, formed in the elastic case, for inserting the smart wearable device; and a power supply portion disposed on the charging base and configured to supply the smart wearable device with electrical energy for charging; wherein the smart wearable device is fixed to the charging base by means of a close fit between slot walls on two sides of the open slot and an outer surface of the smart wearable device; wherein cross sections of the slot walls on the two sides of the open slot are concave curves; cross sections of the outer surface of the smart wearable device opposite to the slot walls on the two sides of the open slot are convex curves to form joint portions; a radian of the joint portions is equal to a radian of the slot walls on the two sides of the open slot; wherein the smart wearable device comprises an upper case and a lower case disposed underneath the upper case; an accommodation space is formed in the upper case; the lower case and the upper case are connected through hooks so as to close the accommodation space in the upper case; the joint portions are disposed on the upper case; wherein the power supply portion comprises a first printed circuit board (PCB) disposed in the elastic case for charging; a pogo pin is connected to the first PCB; a spring hole for extension of ends of pin shafts of the pogo pin is formed in the elastic case located on a bottom of the open slot; the pin shafts of the pogo pin extend into the open slot from the spring hole; metal pillars that are in contact with elastic pieces on a second PCB of the smart wearable device are disposed in the smart wearable device; the second PCB is disposed in the accommodation space; pillar holes are formed in one side of an outer surface of the lower case of the smart wearable device opposite to the bottom of the open slot; positions of the pillar holes correspond to positions of the metal pillars; one end of each one of the metal pillars away from one elastic piece of the elastic piece is inserted into a corresponding pillar hole of the pillar hole; the pin shafts of the pogo pin and end surfaces of the metal pillars away from the elastic pieces are brought into contact to conduct after the smart wearable device is inserted into the open slot so as to charge the smart wearable device. ### Claim 2 (depends on 1) The smart wearable device and the charger thereof as claimed in claim 1, wherein a depth of the open slot is greater than one half of a thickness of the smart wearable device. ### Claim 3 (depends on 2) The smart wearable device and the charger thereof as claimed in claim 2, wherein a circumferential protruding portion is disposed at an upper end of the pogo pin; the circumferential protruding portion surrounds the pin shafts of the pogo pin; a shape and a size of the spring hole are adapted to a shape and a size of the circumferential protruding portion; matching grooves are formed in the one side of the outer surface of the lower case of the smart wearable device opposite to the bottom of the open slot and are located at the pillar holes are located; the matching grooves are adaptively connected to the circumferential protruding portion; the end surfaces of the metal pillars away from the elastic pieces extend into the matching grooves from the pillar holes. ### Claim 4 (depends on 3) The smart wearable device and the charger thereof as claimed in claim 3, wherein a deformation slot is formed on another side of the elastic case opposite to the open slot, and disposition directions of the deformation slot and the open slot are the same. ### Claim 5 (depends on 4) The smart wearable device and the charger thereof as claimed in claim 4, wherein a supporting skeleton is disposed in the elastic case. ### Claim 6 (depends on 5) The smart wearable device and the charger thereof as claimed in claim 5, wherein the supporting skeleton is made of polypropylene. ### Claim 7 (depends on 3) The smart wearable device and the charger thereof as claimed in claim 3, wherein a supporting skeleton is disposed in the elastic case. ### Claim 8 (depends on 7) The smart wearable device and the charger thereof as claimed in claim 7, wherein the supporting skeleton is made of polypropylene. ### Claim 9 (depends on 1) The smart wearable device and the charger thereof as claimed in claim 1, wherein a circumferential protruding portion is disposed at an upper end of the pogo pin; the circumferential protruding portion surrounds the pin shafts of the pogo pin, a shape and a size of the spring hole are adapted to a shape and a size of the circumferential protruding portion; matching grooves are formed in the one side of the outer surface of the lower case of the smart wearable device opposite to the bottom of the open slot and are located at the pillar holes are located; the matching grooves are adaptively connected to the circumferential protruding portion; the end surfaces of the metal pillars away from the elastic pieces extend into the matching grooves from the pillar holes. ### Claim 10 (depends on 9) The smart wearable device and the charger thereof as claimed in claim 9, wherein a deformation slot is formed on another side of the elastic case opposite to the open slot, and disposition directions of the deformation slot and the open slot are the same. ### Claim 11 (depends on 1) The smart wearable device and the charger thereof as claimed in claim 1, wherein the elastic case is made of a thermal plastic and elastic material. ### Claim 12 A smart wearable device and a charger thereof comprising: the smart wearable device; and a charging base configured to charge a smart wearable device, the charging base comprising: an elastic case, made of a thermal plastic and elastic material; an open slot formed in the elastic case, for inserting the smart wearable device; and a power supply portion disposed on the charging base and configured to supply the smart wearable device with electrical energy for charging; wherein the smart wearable device is fixed to the charging base by means of a close fit between slot walls on two sides of the open slot and an outer surface of the smart wearable device; wherein cross sections of the slot walls on the two sides of the open slot are concave curves; cross sections of the outer surface of the smart wearable device opposite to the slot walls on the two sides of the open slot are convex curves to form joint portions; a radian of the joint portions is equal to a radian of the slot walls on the two sides of the open slot. ### Claim 13 (depends on 12) The smart wearable device and the charger thereof as claimed in claim 12, wherein a depth of the open slot is greater than one half of a thickness of the smart wearable device. ### Claim 14 (depends on 12) The smart wearable device and the charger thereof as claimed in claim 12, wherein the power supply portion comprises a first printed circuit board (PCB) disposed in the elastic case for charging; a pogo pin is connected to the first PCB; a spring hole for extension of ends of pin shafts of the pogo pin is formed in the elastic case located on a bottom of the open slot; the pin shafts of the pogo pin extend into the open slot from the spring hole, metal pillars that are in contact with elastic pieces on a second PCB of the smart wearable device are disposed in the smart wearable device; pillar holes are formed in one side of an outer surface of the smart wearable device opposite to the bottom of the open slot, positions of the pillar holes correspond to positions of the metal pillars; one end of each one of the metal pillars away from one elastic piece of the elastic pieces is inserted into a corresponding pillar hole of the pillar holes, the pin shafts of the pogo pin and end surfaces of the metal pillars away from the elastic pieces are brought into contact to conduct after the smart wearable device is inserted into the open slot so as to charge the smart wearable device. ### Claim 15 (depends on 14) The smart wearable device and the charger thereof as claimed in claim 14, wherein a circumferential protruding portion is disposed at an upper end of the pogo pin; the circumferential protruding portion surrounds the pin shafts of the pogo pin; a shape and a size of the spring hole are adapted to a shape and a size of the circumferential protruding portion, matching grooves are formed in the one side of the outer surface of the smart wearable device opposite to the bottom of the open slot and are located at the pillar holes are located; the matching grooves are adaptively connected to the circumferential protruding portion; the end surfaces of the metal pillars away from the elastic pieces extend into the matching grooves from the pillar holes. ### Claim 16 (depends on 15) The smart wearable device and the charger thereof as claimed in claim 15, wherein a deformation slot is formed on another side of the elastic case opposite to the open slot, and disposition directions of the deformation slot and the open slot are the same. ### Claim 17 (depends on 16) The smart wearable device and the charger thereof as claimed in claim 16, wherein a supporting skeleton is disposed in the elastic case. ### Claim 18 (depends on 17) The smart wearable device and the charger thereof as claimed in claim 17, wherein the elastic case is made of polypropylene.