A warmer device includes a rechargeable warmer bag containing liquid, a protection device for disposing the rechargeable warmer bag thereat, a charging unit for charging the rechargeable warmer bag to heat up liquid at a usable temperature, and a monitoring device for monitoring the rechargeable war
A warmer device includes a rechargeable warmer bag containing liquid, a protection device for disposing the rechargeable warmer bag thereat, a charging unit for charging the rechargeable warmer bag to heat up liquid at a usable temperature, and a monitoring device for monitoring the rechargeable warmer bag, wherein the monitoring device includes an actuator operatively linked to the charging device and arranged in such a manner that the actuator is switched on to ensure the heating unit being operated to heat up the liquid, wherein the actuator is actuated by the bag when the bag is expanded, such that the actuator is switched off in response to an expansion of the bag at the protection device to cut off a power supply of the charging unit for preventing the bag being over-expanded.
대표청구항▼
1. A warmer device, comprising: a rechargeable warmer bag which comprises a bag defining a sealed cavity and receiving a predetermined of liquid therein, and a heating unit supported in said sealed cavity for heating up said liquid, wherein when said liquid is heated up at a usable temperature, said
1. A warmer device, comprising: a rechargeable warmer bag which comprises a bag defining a sealed cavity and receiving a predetermined of liquid therein, and a heating unit supported in said sealed cavity for heating up said liquid, wherein when said liquid is heated up at a usable temperature, said bag is expanded to increase a size thereof; a protection device having an interior protection cavity for disposing said rechargeable warmer bag thereat, a charging device provided at said protection device to operatively connect to said heating unit when said rechargeable warmer bag is disposed at said protection cavity of said protection device; and a monitoring device provided at said protection device to monitor said rechargeable warmer bag, wherein said monitoring device comprises an actuator operatively linked to said charging device and arranged in such a manner that said actuator is switched on to ensure said heating unit being operated to heat up said liquid at said protection cavity before said liquid in said bag is heated up at said usable temperature, wherein said actuator is actuated by said bag when said bag is expanded, such that said actuator is switched off in response to an expansion of said bag at said protection cavity to cut off a power supply of said charging unit for preventing said bag being over-expanded. 2. The warmer device, as recited in claim 1, wherein said protection device comprises an affixing wall and a movable wall, wherein said actuator is provided on at least one of said affixing wall and said movable wall, such that when said bag is expanded, said movable wall is pushed in response to said expansion of said bag to actuate said actuator for cutting off said power supply of said charging unit. 3. The warmer device, as recited in claim 2, wherein said actuator comprises a first contacting terminal provided at said affixing wall and a second contacting terminal provided at said movable wall and arranged in such a manner that when said bag is disposed at said protection cavity that said liquid is heated below said usable temperature, said second contacting terminal is conductively contacted with said first contacting terminal to ensure an operation of said heating unit to heat up said liquid, and when said bag is expanded to push said movable wall, said second contacting terminal is moved apart from said first contacting terminal so as to cut off said power supply of said charging unit. 4. The warmer device, as recited in claim 3, wherein said protection device further comprises a base housing and a pivot cover pivotally coupled with said base housing, wherein said affixing wall and said movable wall are defined at said base housing and said pivot cover respectively, such that when said bag is expanded, said pivot cover is pivotally and upwardly pushed in response to said expansion of said bag to actuate said actuator for cutting off said power supply of said charging unit. 5. The warmer device, as recited in claim 4, wherein said first contacting terminal is provided at said base housing and said second contacting terminal is provided at said pivot cover and arranged in such a manner that when said bag is disposed at said protection cavity that said liquid is heated below said usable temperature, said pivot cover is pivotally and downwardly covered on said bag to conductively contact said second contacting terminal with said first contacting terminal to ensure an operation of said heating unit to heat up said liquid, and when said bag is expanded to pivotally and upwardly push said pivot cover, said second contacting terminal is moved apart from said first contacting terminal so as to cut off said power supply of said charging unit. 6. The warmer device, as recited in claim 5, wherein said protection device further comprises an outer shelter pivotally coupled with said base housing to enclose said pivot cover within said receiving compartment, and a resilient element supported between said outer shelter and said pivot cover for applying an urging force against said pivot cover to ensure said second contacting terminal being contacted with said first contacting terminal before said bag is expanded. 7. The warmer device, as recited in claim 5, wherein said protection device further comprises an outer shelter pivotally coupled with said base housing to enclose said pivot cover within said receiving compartment, and an operation shaft having an affixing end affixed to said pivot cover and an enlarged head which is extended through said outer shelter and is arranged in such a manner that when said enlarged head is sat on said outer shelter, said second contacting terminal is contacted with said first contacting terminal, and when said enlarged head is lifted above said outer shelter, said pivot cover is pivotally lifted up to move said second contacting terminal away from said first contacting terminal. 8. The warmer device, as recited in claim 3, wherein said protection device further comprises a hollow shaped stationary housing having an opening end and an opposed wall end, and a U-shaped cross sectional sliding housing slidably received in said stationary housing for said bag being disposed within said stationary housing, wherein said affixing wall and said movable wall are defined at said stationary housing and said sliding housing respectively, such that when said bag is expanded, said sliding housing is slidably pushed from said stationary housing in response to said expansion of said bag to actuate said actuator for cutting off said power supply of said charging unit. 9. The warmer device, as recited in claim 8, wherein said first contacting terminal is provided at said wall end of said stationary housing and said second contacting terminal is provided at a corresponding edge of said sliding housing and arranged in such a manner that when said bag is disposed at said protection cavity that said liquid is heated below said usable temperature, said sliding housing is slid in said stationary housing to conductively contact said second contacting terminal with said first contacting terminal to ensure an operation of said heating unit to heat up said liquid, and when said bag is expanded to slidably push said such a manner that when said bag is disposed at said protection cavity, said sliding housing out of said stationary housing, said second contacting terminal is moved apart from said first contacting terminal so as to cut off said power supply of said charging unit. 10. The warmer device, as recited in claim 3, wherein said protection device further comprises a supporting platform for supporting said bag thereon, a supporting shaft upwardly extended from said supporting platform, and a pivot arm having a pivot end pivotally coupled with said supporting shaft and a contacting end sitting on top of said bag, wherein said affixing wall and said movable wall are defined at said supporting platform and said pivot arm respectively, such that when said bag is expanded, said pivot arm is pivotally lifted from said supporting platform in response to said expansion of said bag to actuate said actuator for cutting off said power supply of said charging unit. 11. The warmer device, as recited in claim 10, wherein said first contacting terminal is provided on top of said supporting shaft and said second contacting terminal is provided at said pivot end of said pivot arm- and arranged in such a manner that when said bag is disposed on said supporting platform that said liquid is heated below said usable temperature, said pivot arm is pivotally and downwardly sat on said bag to conductively contact said second contacting terminal with said first contacting terminal to ensure an operation of said heating unit to heat up said liquid, and when said bag is expanded to pivotally and upwardly push said arm, said second contacting terminal is moved apart from said first contacting terminal so as to cut off said power supply of said charging unit. 12. The warmer device, as recited in claim 2, wherein said actuator comprises a first contacting terminal provided at said affixing wall and a second contacting terminal provided at said movable wall and arranged in such a manner that when said bag is disposed at said protection cavity that said liquid is heated below said usable temperature, said second contacting terminal is spaced apart from said first contacting terminal to ensure an operation of said heating unit to heat up said liquid, and when said bag is expanded to push said movable wall, said second contacting terminal is conductively contacted with said first contacting terminal so as to cut off said power supply of said charging unit. 13. The warmer device, as recited in claim 12, wherein said affixing wall is affixed in said protection cavity and said movable wall are slidably supported in said protection cavity at a position spaced apart from said affixing wall, in such a manner that when said bag is disposed at said protection cavity that said liquid is heated below said usable temperature, said second contacting terminal is not contacted with said first contacting terminal to ensure an operation of said heating unit to heat up said liquid, and when said bag is expanded to slidably push said movable wall, said second contacting terminal is conductively contacted with said first contacting terminal so as to cut off said power supply of said charging unit. 14. The warmer device, as recited in claim 13, wherein said protection device further comprises a resilient element supported between said affixing wall and said movable wall for applying an urging force against said movable wall to ensure said second contacting terminal being not contacted with said first contacting terminal before said bag is expanded. 15. The warmer device, as recited in claim 3, wherein said heating unit comprises a plurality of heaters supported in said sealed cavity to heat up said liquid and at least a temperature sensor supported adjacent to said power supply of the charging unit to prevent an overheat of said liquid, such that said monitoring device and said heating unit provide dual-safety feature for said bag. 16. The warmer device, as recited in claim 12, wherein said heating unit comprises a plurality of heaters supported in said sealed cavity to heat up said liquid and at least a temperature sensor supported adjacent to said power supply of the charging unit to prevent an overheat of said liquid, such that said monitoring device and said heating unit provide dual-safety feature for said bag. 17. The portable warmer, as recited in claim 15, wherein said heating unit further comprises a signal generator provided at said protection device and electrically coupled with said actuator for generating a notifying signal when said power supply of said charging unit is cut off. 18. The portable warmer, as recited in claim 16, wherein said heating unit further comprises a signal generator provided at said protection device and electrically coupled with said actuator for generating a notifying signal when said power supply of said charging unit is cut off. 19. The portable warmer, as recited in claim 17, wherein said fluid is partially filled in said bag that when said bag is disposed at said protection device, a bottom portion of said bag is filled with said fluid while an upper portion of said bag is filled with gas, wherein said heaters are retained at a position that said heaters are submerged at said fluid to effectively heat up said fluid when said bag is disposed at said protection device. 20. The portable warmer, as recited in claim 18, wherein said fluid is partially filled in said bag that when said bag is disposed at said protection device, a bottom portion of said bag is filled with said fluid while an upper portion of said bag is filled with gas, wherein said heaters are retained at a position that said heaters are submerged at said fluid to effectively heat up said fluid when said bag is disposed at said protection device. 21. An operating method of a warmer device, comprising the steps of: receiving a rechargeable warmer bag of said warmer device at a protection cavity of a protection device, wherein a rechargeable warmer bag which comprises a bag defining a sealed cavity and receiving a predetermined of liquid therein;charging said rechargeable warmer bag at said protection cavity of said protection device by a charging unit to heat up said liquid at a usable temperature, wherein when said liquid is heated up at said usable temperature, said bag is expanded to increase a size thereof;monitoring said rechargeable warmer bag during charging and cutting off a power supply from said charging unit when said rechargeable warmer bag is heated to be expanded to a predetermined extent; andenabling said rechargeable warmer bag to be removed and separated from said protection device when said rechargeable warmer bag is fully charged in said protection device. 22. The method, as recited in claim 21, wherein the monitoring step further comprises the steps of: configuring an affixing wall and a movable wall at said protection device; andproviding an actuator on at least one of said affixing wall and said movable wall; andwhen said bag is expanded, pushing said movable wall in response to an expansion of said bag to actuate said actuator for cutting off said power supply of said charging unit. 23. The method, as recited in claim 22, wherein the step of providing said actuator on at least one of said affixing wall and said movable wall further comprises the steps of: providing first and second contacting terminals at said affixing wall and said movable wall respectively,when said bag is disposed at said protection cavity that said liquid is heated below said usable temperature, conductively contacting said second contacting terminal with said first contacting terminal to ensure an operation of said charging unit to heat up said liquid; andwhen said bag is expanded to push said movable wall, moving said second contacting terminal apart from said first contacting terminal so as to cut off said power supply of said charging unit. 24. The method, as recited in claim 22, wherein the step of providing said actuator on at least one of said affixing wall and said movable wall further comprises the steps of: providing first and second contacting terminals at said affixing wall and said movable wall respectively,when said bag is disposed at said protection cavity that said liquid is heated below said usable temperature, spacing said second contacting terminal apart said first contacting terminal that said second contacting terminal is not contact with said first contacting terminal to ensure an operation of said charging unit to heat up said liquid; andwhen said bag is expanded to push said movable wall, conductively contacting said second contacting terminal with said first contacting terminal so as to cut off said power supply of said charging unit.
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이 특허에 인용된 특허 (3)
Remke Matthew S. ; Dahlke-Baumann Jeanne L., Food transport container with integral heater.
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