# US 12,180,647 B2 · Garment steamer > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,180,647 B2 - Document ID: US12180647B2 - Status: Granted - Kind: B2 - Application number: 18/647,091 - Filed: 2024-04-26 - Published: 2024-08-15 - Granted: 2024-12-31 - Earliest claimed: 2021-09-16 - Assignees: Shenzhen Pukaiyu Technology Co., Ltd. - Applicants: Shenzhen Pukaiyu Technology Co., Ltd. - Inventors: Yonghua Yu - Web page: https://patentgrep.com/patent/US12180647B2 ## CPC - D06F 73/00: Apparatus for smoothing or removing creases from garments or other textile articles by formers, cores, stretchers, or internal frames, with the application of heat or steam (combined with external pressure means D06F71/00) - D06F 87/00: Apparatus for moistening or otherwise conditioning the article to be ironed or pressed (apparatus for smoothing or removing creases from garments or other textile articles by formers, cores, stretchers or internal frames, with the application of heat or steam D06F73/00 {; devices used in combination with a laundry dryer D06F58/203}) - F22B 1/285: {the water being fed by a pump to the reservoirs} - D06F 75/10: with means for supplying steam to the article being ironed (D06F75/32 takes precedence) - D06F 75/24: Arrangements of the heating means within the iron; Arrangements for distributing, conducting or storing the heat - D06F: LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES - F22B: METHODS OF STEAM GENERATION; STEAM BOILERS ## Abstract A garment steamer, including: a water tank; an evaporator assembly, communicated with the water tank and configured to generate steam; wherein the evaporator assembly includes a first heating member and a second heating member; a water pump, configured to transfer the water from the water tank to the evaporator assembly; and a switch assembly, configured to control the first heating member to be conducted and disconnected from a power source. When the first voltage is input to the garment steamer, the switch assembly controls the first heating member to be conducted, and the first heating member and the second heating member operate simultaneously; and when the second voltage is input to the garment steamer, the first heating member is disconnected from the power source, and only the second heating member is conducted and operates. ## Claims ### Claim 1 A garment steamer, comprising: a water tank, configured to store water; an evaporator assembly, communicated with the water tank and configured to generate steam; wherein the evaporator assembly comprises a first heating member and a second heating member, a resistance of the first heating member is adapted to a first voltage, a resistance of the second heating member is adapted to a second voltage, the first voltage is less than the second voltage; a water pump, configured to transfer the water from the water tank to the evaporator assembly; and a switch assembly, configured to control the first heating member to be conducted and disconnected from a power source; wherein, when the first voltage is input to the garment steamer, the switch assembly is conducted to control the first heating member to be conducted, and the first heating member and the second heating member operate simultaneously; and when the second voltage is input to the garment steamer, the switch assembly is disconnected from the power source to cause the first heating member to be disconnected from the power source, and only the second heating member is conducted and operates. ### Claim 2 (depends on 1) The garment steamer according to claim 1, further comprising: a power input end, connected to the second heating member; and a single-chip microcontroller, connected to the switch assembly, wherein when the single-chip microcontroller detects that the first voltage is input to the garment steamer, the single-chip microcontroller controls the switch assembly to be conducted to further control the first heating member to operate. ### Claim 3 (depends on 2) The garment steamer according to claim 2, wherein, the switch assembly comprises a relay, and the relay comprises: a first switch, connected between the first heating member and the power input end, wherein, when the single-chip microcontroller detects that the first voltage is input to the power input end, the single-chip microcontroller controls the first switch to be conducted to further control the first heating member to operate. ### Claim 4 (depends on 3) The garment steamer according to claim 3, wherein the relay further comprises an electromagnet; when the single-chip microcontroller detects that the first voltage is input to the power input end, the single-chip microcontroller drives the electromagnet to generate a first magnetic force to control the first switch to be conducted; and when the single-chip microcontroller detects that the second voltage is input to the power input end, the electromagnet is disconnected form the power source, and the first magnetic force to control the first switch to be conducted is released. ### Claim 5 (depends on 4) The garment steamer according to claim 4, wherein the first switch is a constantly-off switch and is controlled to be conducted, only when the single-chip microcontroller detects that the first voltage is input to the power input end, to further control the first heating member to operate. ### Claim 6 (depends on 2) The garment steamer according to claim 2, wherein the switch assembly comprises a controllable silicon device; and when the single-chip microcontroller detects that the first voltage is input to the power input end, the single-chip microcontroller controls the controllable silicon device to be conducted to further control the first heating member to operate. ### Claim 7 (depends on 2) The garment steamer according to claim 2, wherein the single-chip microcontroller is configured to control the water pump to be disconnected from or conducted to the power source based on preset time length. ### Claim 8 (depends on 2) The garment steamer according to claim 2, further comprising: a switch circuit, connected between the water pump and the power input end, wherein, the switch circuit is connected to the single-chip microcontroller, the single-chip microcontroller is configured to control the switch circuit to be conducted to or disconnected from the power source to adjust a power of the water pump. ### Claim 9 (depends on 8) The garment steamer according to claim 8, further comprising: a diode, wherein, an end of the diode is connected to the water pump, and the other end of the diode is connected to the switch circuit. ### Claim 10 (depends on 8) The garment steamer according to claim 8, wherein, the switch circuit comprises a control switch, the control switch is a controllable silicon device or a field effect tube. ### Claim 11 (depends on 2) The garment steamer according to claim 2, further comprising: a step-down module, connected between the power input end and the single-chip microcontroller, wherein, the step-down module is configured to reduce the input voltage that is input to the power input end to an operating voltage suitable for the single-chip microcontroller. ### Claim 12 (depends on 11) The garment steamer according to claim 11, wherein, the step-down module is connected to the water pump, the step-down module is configured to reduce the input voltage that is input to the power input end to an operating voltage suitable for the water pump. ### Claim 13 (depends on 1) The garment steamer according to claim 1, further comprising: a first thermostat, configured to detect a first temperature of the evaporator assembly; wherein, when the first temperature is greater than a first preset temperature, the first thermostat disconnects the evaporator assembly from the power source. ### Claim 14 (depends on 13) The garment steamer according to claim 13, wherein, when the first temperature is less than or equal to the first preset temperature, the first thermostat is conducted to enable the evaporator assembly to operate. ### Claim 15 A garment steamer, comprising: a water tank, configured to store water; an evaporator assembly, communicated with the water tank and configured to generate steam; wherein the evaporator assembly comprises a first heating member and a second heating member, a resistance of the first heating member is adapted to a first voltage, a resistance of the second heating member is adapted to a second voltage, the first voltage is less than the second voltage; a water pump, configured to transfer the water from the water tank to the evaporator assembly; and a switch assembly, configured to control the first heating member to be conducted and disconnected from a power source; a second thermostat, configured to detect a second temperature of the water tank, wherein, when the second temperature reaches a second preset temperature, the second thermostat controls the water pump to transfer the water from the water tank to the evaporator assembly; wherein, when the first voltage is input to the garment steamer, the switch assembly controls the first heating member to be conducted, and the first heating member and the second heating member operate simultaneously; and when the second voltage is input to the garment steamer, the first heating member is disconnected from the power source, and only the second heating member is conducted and operates. ### Claim 16 (depends on 15) The garment steamer according to claim 15, wherein, when the second temperature is less than the second preset temperature, the second thermostat is disconnected from the power source, and the water pump stops operating. ### Claim 17 A garment steamer, comprising: a water tank, configured to store water; an evaporator assembly, communicated with the water tank and configured to generate steam; wherein the evaporator assembly comprises a first heating member and a second heating member, a resistance of the first heating member is adapted to a first voltage, a resistance of the second heating member is adapted to a second voltage, the first voltage is less than the second voltage; a water pump, configured to transfer the water from the water tank to the evaporator assembly; and a switch assembly, configured to control the first heating member to be conducted and disconnected from a power source; wherein, when the first voltage is input to the garment steamer, the switch assembly controls the first heating member to be conducted, and the first heating member and the second heating member operate simultaneously; and when the second voltage is input to the garment steamer, the first heating member is disconnected from the power source, and only the second heating member is conducted and operates; wherein the evaporator assembly further comprises: an evaporation chamber, a first receiving member, a second receiving member, and a cover; the cover is configured to cover a side of the evaporation chamber; and the evaporation chamber, the first receiving member, the second receiving member, and the cover cooperatively define an evaporation sub-chamber. ### Claim 18 (depends on 17) The garment steamer according to claim 17, wherein the first heating member is arranged inside the first receiving member, and the second heating member is arranged inside the second receiving member.