# US 10,319,894 B2 · Wearable electronic device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,319,894 B2 - Document ID: US10319894B2 - Status: Granted - Kind: B2 - Application number: 15/025,395 - Filed: 2015-11-02 - Published: 2017-06-08 - Granted: 2019-06-11 - Earliest claimed: 2015-05-15 - Assignees: Boe Technology Group Co., Ltd.; Hefei Boe Optoelectroncis Technology Co., Ltd. - Applicants: Boe Technology Group Co., Ltd.; Hefei Boe Optoelectronics Technology Co., Ltd. - Inventors: Lingxiao Hu; Wenhao Zhang; Youhui Liu - Web page: https://patentgrep.com/patent/US10319894B2 ## CPC - H10N 10/80: Constructional details - G04G 21/00: Input or output devices integrated in time-pieces - G06F 1/163: {Wearable computers, e.g. on a belt} - G06F 1/1635: {Details related to the integration of battery packs and other power supplies such as fuel cells or integrated AC adapter} - G06F 1/26: Power supply means, e.g. regulation thereof (for memories G11C) - H02J 7/32: for charging batteries from a charging set comprising a non-electric prime mover {rotating at constant speed} - H10N 10/17: characterised by the structure or configuration of the cell or thermocouple forming the device - H10N 10/852: comprising tellurium, selenium or sulfur - G06F 1/1637: {Details related to the display arrangement, including those related to the mounting of the display in the housing} - Y02B 40/00: Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers - H10N: ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR - G04G: ELECTRONIC TIME-PIECES - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS ## Abstract A wearable electronic device including a display portion and a fixed portion connected with the display portion. The fixed portion is configured to fix the wearable electronic device on body of a wearer. The display portion includes a display screen. The fixed portion is provided with a thermoelectric conversion module which is insulated and isolated from external environment. The thermoelectric conversion module is configured to convert a temperature difference between a body temperature of the wearer and a temperature of the external environment into electrical energy used for operating the wearable electronic device. The wearable electronic device has enhanced endurance. ## Claims ### Claim 1 A wearable electronic device, comprising: a display portion; a fixed portion connected with the display portion, the fixed portion being configured to fix the wearable electronic device on the body of a wearer; wherein the display portion includes a display screen, and the fixed portion is provided with a thermoelectric conversion module electrically insulated from external environment; and the thermoelectric conversion module is configured to convert a temperature difference between a body temperature of the wearer and a temperature of the external environment into electrical energy used for operating the wearable electronic device; and wherein the thermoelectric conversion module comprises a first plurality of thermoelectric conversion sub-modules using the body of the wearer as a heat source and using the external environment in which the thermoelectric conversion sub-modules are located as a cold source, and a second plurality of thermoelectric conversion sub-modules using the external environment in which the thermoelectric conversion sub-modules are located as a heat source and using the body of the wearer as a cold source, the first plurality of the thermoelectric conversion sub-modules and the second plurality of thermoelectric conversion sub-modules being arranged alternately. ### Claim 2 (depends on 1) The wearable electronic device according to claim 1, wherein the display portion further includes an accumulator, an input end of the accumulator is connected with an output end of the thermoelectric conversion module, so as to store the electrical energy generated by the thermoelectric conversion module, and an output end of the accumulator is connected with a power input end of the display screen. ### Claim 3 (depends on 1) The wearable electronic device according to claim 1, wherein the first plurality of thermoelectric conversion sub-modules are connected with each other in series, and the second plurality of thermoelectric conversion sub-modules are connected with each other in series. ### Claim 4 (depends on 1) The wearable electronic device according to claim 1, wherein a surface of each of the second plurality of thermoelectric conversion sub-modules using the external environment as the heat source facing the external environment is provided with a layer of heat-absorption material; and/or a surface of each of the first plurality of thermoelectric conversion sub-modules using the body of the wearer as a heat source contacting the body of the wearer is provided with a layer of heat-absorption material. ### Claim 5 (depends on 3) The wearable electronic device according to claim 3, wherein the display portion and the fixed portion form a closed ring. ### Claim 6 (depends on 5) The wearable electronic device according to claim 5, wherein the fixed portion includes a plurality of fixed blocks, adjacent fixed blocks of the plurality of fixed blocks are hinged with each other, and each of the plurality of fixed blocks is provided with one of the thermoelectric conversion sub-modules. ### Claim 7 (depends on 6) The wearable electronic device according to claim 6, wherein each of the thermoelectric conversion sub-modules includes at least one thermoelectric conversion unit, the thermoelectric conversion unit includes a P-type semiconductor, an N-type semiconductor, a first plate electrode, and two second plate electrodes; wherein the first plate electrode is provided on a side of the thermoelectric conversion unit, both the P-type semiconductor and the N-type semiconductor are fixed on the first plate electrode, and one of the two second plate electrodes is provided on an end of the P-type semiconductor facing away from the first plate electrode and the other one of the two second plate electrodes is provided on an end of the N-type semiconductor facing away from the first plate electrode; and both the P-type semiconductor and the N-type semiconductor are made of thermoelectric materials, and the P-type semiconductor and the N-type semiconductor have different Seebeck coefficients. ### Claim 8 (depends on 7) The wearable electronic device according to claim 7, wherein each of the fixed blocks includes a first heat-conducting plate and a second heat-conducting plate, both the first heat-conducting plate and the second heat-conducting plate are insulated from each other; the first plate electrode is fixed on the first heat-conducting plate, and the second plate electrodes are fixed on the second heat-conducting plate. ### Claim 9 (depends on 8) The wearable electronic device according to claim 8, wherein both the first heat-conducting plate and the second heat-conducting plate are made of ceramic material. ### Claim 10 (depends on 7) The wearable electronic device according to claim 7, wherein the P-type semiconductor includes P-doped Bi2Te3, and the N-type semiconductor includes N-doped Bi2Te3. ### Claim 11 (depends on 10) The wearable electronic device according to claim 10, wherein the P-type semiconductor is doped with Sb and the N-type semiconductor is doped with Se. ### Claim 12 (depends on 7) The wearable electronic device according to claim 7, wherein a plurality of the thermoelectric conversion units are included on a same one of the plurality of fixed blocks, the N-type semiconductor of one of the thermoelectric conversion units is adjacent to the P-type semiconductor of another thermoelectric conversion unit adjacent to the one; and second plate electrodes of the two adjacent thermoelectric conversion units are integrated together. ### Claim 13 (depends on 12) The wearable electronic device according to claim 12, wherein each of the thermoelectric conversion sub-modules includes a leading-out end and a leading-in end; the leading-out end is connected with the second plate electrode of the P-type semiconductor on an end of the thermoelectric conversion module, and the leading-in end is connected with the second plate electrode of the N-type semiconductor on the other end of the thermoelectric conversion module; and a current flows into the thermoelectric conversion sub-module at the leading-in end, and flows out at the leading-out end. ### Claim 14 (depends on 13) The wearable electronic device according to claim 13, wherein in two adjacent fixed blocks in the fixed portion, a second plate electrode corresponding to the leading-out end of a thermoelectric conversion sub-module in one of the two adjacent fixed blocks is provided on one of the first heat-conducting plate and the second heat-conducting plate which is configured to contact the body of the wearer, and a second plate electrode corresponding to the leading-in end of a thermoelectric conversion sub-module in the other one of the two adjacent fixed blocks is provided on one of the first heat-conducting plate and the second heat-conducting plate which is configured to contact the external environment; or all second plate electrodes corresponding to leading-out ends of the thermoelectric conversion sub-modules are provided on one of the first heat-conducting plate and the second heat-conducting plate which is configured to contact the body of the wearer; or all second plate electrodes corresponding to leading-out ends of the thermoelectric conversion sub-modules are provided on one of the first heat-conducting plate and the second heat-conducting plate which is configured to contact the external environment; or the fixed portion is divided into two parts: in one part of the fixed portion, a second plate electrode corresponding to a leading-in end of each of the thermoelectric conversion sub-modules is provided on one of the first heat-conducting plate and the second heat-conducting plate which is configured to contact the body of the wearer, while in the other part of the fixed portion, a second plate electrode corresponding to a leading-in end of each of the thermoelectric conversion sub-modules is provided on one of the first heat-conducting plate and the second heat-conducting plate which is used to contact the external environment. ### Claim 15 (depends on 7) The wearable electronic device according to claim 7, wherein the output end of the thermoelectric conversion module includes a positive pole terminal connected with the P-type semiconductor located at an end of the fixed portion which is connected with the display portion, and a negative pole terminal connected with the N-type semiconductor located at the end of the fixed portion which is connected with the display portion. ### Claim 16 (depends on 7) The wearable electronic device according to claim 7, wherein each of the fixed blocks includes a heat-conducting protective layer, the heat conducting protective layer is provided on a surface of the first heat-conducting plate facing away from the second heat-conducting plate, and/or the heat conducting protective layer is provided on a surface of the second heat-conducting plate facing away from the first heat-conducting plate. ### Claim 17 (depends on 16) The wearable electronic device according to claim 16, wherein both the first heat-conducting plate and the second heat-conducting plate are provided with the heat-conducting protective layer; in two adjacent ones of the fixed blocks, the heat-conducting protective layers provided on the first heat-conducting plates are hinged with each other, and/or in two adjacent ones of the fixed blocks, the heat-conducting protective layers provided on the second heat-conducting plates are hinged with each other. ### Claim 18 (depends on 2) The wearable electronic device according to claim 2, wherein the first plurality of thermoelectric conversion sub-modules are connected with each other in series, and the second plurality of thermoelectric conversion sub-modules are connected with each other in series.