# US 10,770,981 B2 · Voltage conversion module and bobbin > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,770,981 B2 - Document ID: US10770981B2 - Status: Granted - Kind: B2 - Application number: 15/792,777 - Filed: 2017-10-25 - Published: 2018-03-15 - Granted: 2020-09-08 - Earliest claimed: 2015-04-23 - Assignees: Chicony Power Technology Co., Ltd. - Applicants: Chicony Power Technology Co., Ltd. - Inventors: Yung-Hung Hsiao; Chia-Hsien Yen; Lieh-Chung Yin; Cheng-Chang Hsiao; Hao-Te Hsu - Web page: https://patentgrep.com/patent/US10770981B2 ## CPC - H02M 3/33592: {having a synchronous rectifier circuit or a synchronous freewheeling circuit at the secondary side of an isolation transformer} - H01F 27/2804: {Printed windings} - H01F 27/40: Structural association with built-in electric component, e.g. fuse - H02M 1/14: Arrangements for reducing ripples from DC input or output - H02M 3/28: using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC - H02M 3/285: {Single converters with a plurality of output stages connected in parallel (parallel operation of a plurality of converters in DC distribution networks H02J1/10)} - H02M 7/003: {Constructional details, e.g. physical layout, assembly, wiring or busbar connections} - H02M 7/08: arranged for operation in parallel - H01F 27/2819: {Planar transformers with printed windings, e.g. surrounded by two cores and to be mounted on printed circuit} - H02M 1/0058: {by employing soft switching techniques, i.e. commutation of transistors when applied voltage is zero or when current flow is zero (using an auxiliary actively switched resonant commutation circuit connected to an intermediate DC voltage or between two push-pull branches of an inverter bridge H02M7/4811; in resonant inverters H02M7/4815; in inverters operating from a resonant DC source H02M7/4826)} - H02M 1/009: {having two or more independently controlled outputs (for DC-DC converter with intermediate AC H02M3/33561)} - Y02B 70/10: Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes - H02M: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P) - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS ## Abstract The present disclosure is related to a voltage conversion module which includes a front side magneto-sensitive unit, at least one voltage conversion unit, a core group, and a bobbin. The bobbin includes a first accommodating part, a second accommodating part, and a through hole. The first accommodating part is used for accommodating the front side magneto-sensitive unit. The second accommodating part is used for accommodating the at least one voltage conversion unit. The through hole is used for accommodating the core group. The second accommodating part includes first and second openings. The first opening is disposed at one side of the second accommodating part. The second opening is disposed at another side of the second accommodating part. The first and second openings are disposed opposite to each other, and a heat dissipation channel is formed between the first opening, the second opening and the at least one voltage conversion unit. ## Claims ### Claim 1 A voltage conversion module comprising: a front side magneto-sensitive unit; at least one voltage conversion unit; a core group; and a bobbin comprising: a first accommodating part for accommodating the front side magneto-sensitive unit; a second accommodating part for accommodating the at least one voltage conversion unit, wherein the second accommodating part comprises: a first opening disposed at an entrance side of the second accommodating part for accommodating the at least one voltage conversion unit; and a second opening disposed at an opposite side which is opposite t the entrance side of the second accommodating part; and a through hole for accommodating the core group; wherein, the first opening and the second opening are disposed opposite to each other, and a heat dissipation channel is formed between the first opening, the second opening and the at least one voltage conversion unit. ### Claim 2 (depends on 1) The voltage conversion module of claim 1, wherein at least one of an upper edge and a lower edge of the first opening has a stopper against the at least one voltage conversion unit, or at least one of an upper edge and a lower edge of the second opening has a stopper against the at least one voltage conversion unit. ### Claim 3 (depends on 1) The voltage conversion module of claim 1, wherein a divider block is disposed on an upper edge and/or a lower edge of the second accommodating part, the divider block divides the second accommodating part into a plurality of slots, and the plurality of slots are configured to accommodate the at least one voltage conversion unit. ### Claim 4 (depends on 3) The voltage conversion module of claim 3, wherein a number of the at least one voltage conversion unit is at least two, wherein the plurality of slots are configured to accommodate the at least two voltage conversion units, and an interspace is formed between the at least two voltage conversion units. ### Claim 5 (depends on 3) The voltage conversion module of claim 3, wherein a distance between an upper edge of the through hole and the upper edge of the second accommodating part and a distance between an lower edge of the through hole and the lower edge of the second accommodating part are larger than a length of the divider block. ### Claim 6 (depends on 3) The voltage conversion module of claim 3, wherein when the at least one voltage conversion unit is disposed in the slot, an interspace is formed between an inner wall of the second accommodating part and the at least one voltage conversion unit. ### Claim 7 (depends on 3) The voltage conversion module of claim 3, wherein when the core group is disposed in the through hole, a side edge of the divider block and an upper edge or a lower edge of the through hole form an upper channel or a lower channel. ### Claim 8 (depends on 1) The voltage conversion module of claim 1, wherein when the core group is disposed in the through hole, an interspace is formed between the second opening and an end of the through hole which is adjacent to the second opening. ### Claim 9 (depends on 1) The voltage conversion module of claim 1, wherein at least one of an upper edge and a lower edge of the first opening has a notch, when the at least one voltage conversion unit is disposed in the slot, the at least one voltage conversion unit is embedded into the notch for locating or fixing. ### Claim 10 A voltage conversion module comprising: a front side magneto-sensitive unit; a voltage conversion unit having: a circuit board having a base portion and an expending portion connected to the base portion, wherein a penetrating hole is formed on the expending portion, and a magnetic sensitive layer is disposed on the expending portion for interacting with the front side magneto-sensitive unit; a rectifier disposed on the base portion; and a filter disposed on the base portion, wherein the filter and the rectifier are electrically connected; a core group; and a bobbin comprising: an accommodating part comprising: a first opening disposed at an entrance side of the accommodating part for accommodating the voltage conversion unit; and a second opening disposed at an opposite side which is opposite to the entrance side of the accommodating part; a spacer, wherein a winding part is formed between the spacer and the accommodating part; and a through channel, wherein the through channel penetrates the accommodating part and the spacer; wherein, the front side magneto-sensitive unit and the voltage conversion unit are accommodated in the bobbin and part of the core group penetrates the through channel and the penetrating hole. ### Claim 11 (depends on 10) The voltage conversion module of claim 10, wherein the first opening and the second opening are disposed opposite to each other, wherein a heat dissipation channel is formed between the first opening, the second opening and the voltage conversion unit, and at least one of an upper edge and a lower edge of the first opening has a stopper against the expending portion or at least one of an upper edge and a lower edge of the second opening has a stopper against the expending portion. ### Claim 12 (depends on 10) The voltage conversion module of claim 10, wherein an angle is formed between the base portion and the expending portion, wherein a value of the angle is higher than 0 degree and lower than 180 degrees. ### Claim 13 (depends on 10) The voltage conversion module of claim 10, wherein a metal sheet is disposed on the magnetic sensitive layer or the expending portion for increasing a heat dissipation and current resistance of the magnetic sensitive layer or the expending portion. ### Claim 14 (depends on 10) The voltage conversion module of claim 10, wherein a divider block is disposed on an upper edge and/or a lower edge of the accommodating part, the divider block divides the accommodating part into a plurality of slots, and the plurality of slots are configured to accommodate the voltage conversion unit. ### Claim 15 (depends on 14) The voltage conversion module of claim 14, wherein a distance between an upper edge of the through channel and the upper edge of the accommodating part and a distance between a lower edge of the through channel and the lower edge of the accommodating part are larger than a length of the divider block, and the upper edge of the through channel and a lower edge of the divider block form an upper passage, and the lower edge of the through channel and an upper edge of the divider block form a lower passage. ### Claim 16 A bobbin comprising: an accommodating part comprising: a first opening disposed at an entrance side of the accommodating part for accommodating at least one voltage conversion unit; and a second opening disposed at an opposite side which is opposite to the entrance side of the accommodating part; a spacer, wherein a winding part is formed between the spacer and the accommodating part; and a through channel, wherein the through channel penetrates the accommodating part and the spacer; wherein, the first opening and the second opening are disposed opposite to each other, and a heat dissipation channel is formed between the first opening, the second opening and an inner wall of the accommodating part. ### Claim 17 (depends on 16) The bobbin of claim 16, wherein at least one of an upper edge and a lower edge of the first opening has a stopper, or at least one of an upper edge and a lower edge of the second opening has a stopper. ### Claim 18 (depends on 16) The bobbin of claim 16, wherein a divider block is disposed on an upper edge and/or a lower edge of the accommodating part, and the divider block divides the accommodating part into a plurality of slots. ### Claim 19 (depends on 18) The bobbin of claim 18, wherein a distance between a upper edge of the through channel and the upper edge of the accommodating part and a distance between a lower edge of the through channel and the lower edge of the accommodating part are larger than a length of the divider block, and the upper edge of the through channel and a lower edge of the divider block form an upper passage, and the lower edge of the through channel and an upper edge of the divider block form a lower passage. ### Claim 20 (depends on 16) The bobbin of claim 16, wherein at least one of an upper edge and a lower edge of the first opening has a notch.