WO2019045165A1 - 피드백 디바이스 및 이를 이용하는 열적 피드백 제공 방법 - Google Patents
피드백 디바이스 및 이를 이용하는 열적 피드백 제공 방법 Download PDFInfo
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- WO2019045165A1 WO2019045165A1 PCT/KR2017/010430 KR2017010430W WO2019045165A1 WO 2019045165 A1 WO2019045165 A1 WO 2019045165A1 KR 2017010430 W KR2017010430 W KR 2017010430W WO 2019045165 A1 WO2019045165 A1 WO 2019045165A1
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- temperature
- feedback
- heat
- feedback device
- contact surface
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- 0 CCCC(C)CCCCC(C)(*C)C(C(C(C(C(C1CC1)C(C(*)C(C(*)C(C(C(C)[U]*)S)[N+]([O-])=O)O)(N)O)N)O)N)S Chemical compound CCCC(C)CCCCC(C)(*C)C(C(C(C(C(C1CC1)C(C(*)C(C(*)C(C(C(C)[U]*)S)[N+]([O-])=O)O)(N)O)N)O)N)S 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
- F25B21/04—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect reversible
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D1/00—Garments
- A41D1/002—Garments adapted to accommodate electronic equipment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2321/00—Details of machines, plants or systems, using electric or magnetic effects
- F25B2321/02—Details of machines, plants or systems, using electric or magnetic effects using Peltier effects; using Nernst-Ettinghausen effects
- F25B2321/021—Control thereof
- F25B2321/0212—Control thereof of electric power, current or voltage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2321/00—Details of machines, plants or systems, using electric or magnetic effects
- F25B2321/02—Details of machines, plants or systems, using electric or magnetic effects using Peltier effects; using Nernst-Ettinghausen effects
- F25B2321/025—Removal of heat
- F25B2321/0252—Removal of heat by liquids or two-phase fluids
Definitions
- the present invention relates to a feedback device for outputting thermal feedback and a method for providing thermal feedback using the feedback device.
- Thermoelement is a device that generates an exothermic reaction or an endothermic reaction by receiving electric energy by a Peltier effect, and has been expected to be used for providing thermal feedback to a user.
- the application of the thermoelectric element has been limited since it is difficult to adhere to the body part of the user.
- thermoelement FTE
- An aspect of the present invention is to provide a feedback device that provides thermal feedback to a user and a method of providing thermal feedback using the feedback device.
- Another object of the present invention is to provide a feedback device that effectively releases waste heat generated in a feedback device.
- Another object of the present invention is to provide a feedback device with improved cooling transfer performance.
- a feedback device comprising: a flexible substrate; a thermoelectric element disposed on the substrate and performing thermoelectric operation for thermal feedback, the thermoelectric operation including a heating operation and an endothermic operation; A thermoelectric module including a contact surface disposed on a substrate and outputting the thermal feedback by transmitting heat generated through the thermoelectric action to the user through the substrate and the contact surface; And a feedback controller configured to control the thermoelectric module, wherein the feedback controller controls the temperature of the contact surface to be maintained at a predetermined temperature interval after the temperature of the contact surface reaches the maximum temperature during the entire thermoelectric operation time interval And controls the thermoelectric module to control the thermoelectric module so that a temperature rise or a temperature lower than a predetermined threshold periodically occurs after the temperature of the contact surface reaches the predetermined temperature range.
- the waste heat generated in the feedback device can be effectively released.
- the user's perception of thermal feedback can be improved.
- 1 to 12 relate to an embodiment of a feedback device according to an embodiment of the present invention.
- FIG. 13 is a block diagram of a configuration of a feedback device 100 according to an embodiment of the present invention.
- thermoelectric module 14 is a block diagram of a configuration of a thermoelectric module according to an embodiment of the present invention.
- FIG. 15 is a view of one embodiment of a thermoelectric module 1000 according to an embodiment of the present invention.
- thermoelectric module 1000 is a view showing another embodiment of the thermoelectric module 1000 according to the embodiment of the present invention.
- thermoelectric module 1000 is a view showing another embodiment of the thermoelectric module 1000 according to the embodiment of the present invention.
- FIG. 18 is a view showing yet another embodiment of the thermoelectric module 1000 according to the embodiment of the present invention.
- FIG. 19 is a diagram illustrating a heating operation for providing warm feedback according to an embodiment of the present invention.
- 20 is a graph showing the strength of the warm feedback according to the embodiment of the present invention.
- 21 is a diagram illustrating a heating operation for providing cold feedback according to an embodiment of the present invention.
- 22 is a graph showing the strength of cold feedback according to an embodiment of the present invention.
- FIG. 23 is a graph illustrating the strength of warm / cold feedback using voltage regulation according to an embodiment of the present invention.
- 24 is a graph relating to warm / cool feedback with the same temperature change amount according to an embodiment of the present invention.
- 25 is a diagram illustrating a voltage regulating thermal grill operation according to an embodiment of the present invention.
- 26 is a table of voltages for providing neutral column grill feedback in a voltage regulation scheme according to an embodiment of the present invention.
- FIG. 27 is a view for explaining a liquid supply unit according to an embodiment of the present invention.
- FIG. 28 is a view for explaining a heat dissipating unit according to an embodiment of the present invention.
- 29 is a diagram illustrating a structure of a feedback device according to an embodiment of the present invention.
- FIG. 30 is a diagram illustrating a structure of a feedback device 100 according to another embodiment of the present invention.
- 31 is a diagram illustrating a structure of a feedback device 100 according to another embodiment of the present invention.
- 32 is a diagram illustrating a structure of a feedback device 100 according to another embodiment of the present invention.
- 33 is a diagram illustrating a structure of a feedback device 100 according to another embodiment of the present invention.
- 34 is a diagram illustrating the structure of a feedback device 100 according to another embodiment of the present invention.
- FIG. 35 is a view for explaining the waste heat releasing performance according to the liquid content of the liquid supplier 3000 according to the embodiment of the present invention.
- 36 is a view for explaining the liquid absorption performance and the liquid holding performance according to the cross link density of the liquid supply portion according to the embodiment of the present invention.
- FIG. 37 is a view for explaining waste heat releasing performance according to the liquid absorbing performance and the liquid retaining performance according to the embodiment of the present invention.
- Fig. 39 is a view for explaining the liquid absorption performance and the liquid holding performance according to the cross link density of the liquid supply portion according to another embodiment of the present invention.
- FIG 40 is a view for explaining liquid transfer according to the liquid permeability of the liquid supply portion according to the embodiment of the present invention.
- FIG. 41 is a view for explaining waste heat discharge performance according to the function of the heat transfer unit according to the embodiment of the present invention.
- FIG. 42 and FIG. 43 are views for explaining the waste heat discharging performance according to the function of the heat discharging unit according to the embodiment of the present invention.
- 44 is a block diagram illustrating the configuration of a feedback device according to another embodiment of the present invention.
- 45 is a view for explaining the properties of a thermal buffer material according to an embodiment of the present invention.
- 46 is a diagram illustrating a structure of a feedback device to which a thermal buffer material according to an embodiment of the present invention is applied.
- FIG. 47 is a view showing a structure of a feedback device to which a thermal buffer material according to another embodiment of the present invention is applied.
- Figure 48 is a diagram illustrating the structure of a feedback device to which a thermal buffer material according to another embodiment of the present invention is applied.
- FIG. 49 is a view showing a structure of a feedback device to which a thermal buffer material according to another embodiment of the present invention is applied.
- FIG. 50 is a view showing a structure of a feedback device to which a thermal buffer material according to another embodiment of the present invention is applied.
- FIG. 51 is a view for explaining a cooler providing performance improved by the thermal buffer material according to the embodiment of the present invention.
- FIG. 52 is a view for explaining a cooler providing performance improved by a thermal buffer material according to another embodiment of the present invention.
- Figure 53 is a plot of the temperature of the heat provided to the user in the feedback device 100 according to an embodiment of the present invention.
- FIG. 54 is a flowchart illustrating a method for improving a user perception performance using a plurality of voltage impressions according to an embodiment of the present invention.
- FIG. 55 is a diagram for explaining the cooling / heating performance of the feedback device 100 by adjusting the voltage magnitude according to the embodiment of the present invention.
- FIG. 56 is a diagram for explaining the cooling / heating performance of the feedback device 100 by controlling the voltage application time according to the embodiment of the present invention.
- 57 is a view for explaining the cooling / heating performance of the feedback device 100 according to the application of a plurality of voltages according to the embodiment of the present invention.
- thermoelectric operation control 58 is a flowchart illustrating a method for improving user perception through thermoelectric operation control according to an embodiment of the present invention.
- thermoelectric action 59 is a diagram for explaining a cycle for controlling the thermoelectric action according to the embodiment of the present invention.
- FIG. 60 is a view for explaining a method for improving user perception through thermoelectric operation control according to an embodiment of the present invention.
- thermoelectric operation control is a view for explaining the temperature change of the contact surface by the thermoelectric operation control according to the embodiment of the present invention
- thermoelectric operation control is a view for explaining the temperature change of the contact surface by thermoelectric operation control according to another embodiment of the present invention.
- thermoelectric operation control are diagrams for explaining the temperature change of the contact surface by thermoelectric operation control according to another embodiment of the present invention.
- a feedback device includes a substrate having flexibility, a thermoelectric action disposed on the substrate for thermal feedback, the thermoelectric action including a heating operation and an endothermic operation, And a contact surface disposed on the substrate, the thermoelectric module including: a thermoelectric module that outputs the thermal feedback by transmitting heat generated through the thermoelectric action to the user through the substrate and the contact surface; And a feedback controller configured to control the thermoelectric module, wherein the feedback controller controls the temperature of the contact surface to be maintained at a predetermined temperature interval after the temperature of the contact surface reaches the maximum temperature during the entire thermoelectric operation time interval It is possible to control the thermoelectric module so that a temperature rise or a temperature fall exceeding a predetermined threshold periodically occurs after the temperature of the contact surface reaches the predetermined temperature range.
- a feedback device comprising: a flexible substrate; a thermoelectric element disposed on the substrate and performing thermoelectric operation for thermal feedback, the thermoelectric operation including a heating operation and an endothermic operation; A thermoelectric module including a contact surface disposed on a substrate and outputting the thermal feedback by transmitting heat generated through the thermoelectric action to the user through the substrate and the contact surface; And a feedback controller configured to control the thermoelectric module, wherein the feedback controller controls the temperature of the contact surface to be maintained at a predetermined temperature interval after the temperature of the contact surface reaches the maximum temperature during the entire thermoelectric operation time interval And controls the thermoelectric module to control the thermoelectric module so that a temperature rise or a temperature lower than a predetermined threshold periodically occurs after the temperature of the contact surface reaches the predetermined temperature range.
- the feedback controller may be configured to apply a first voltage to the thermoelectric module to cause the thermoelectric module to perform the heat absorbing operation so that the feedback device provides a cool feeling to the user.
- the feedback device may be configured to apply the first voltage in the form of a duty signal.
- the feedback controller controls the thermoelectric module so that the temperature of the contact surface is maintained at a predetermined saturation temperature interval after the temperature of the contact surface reaches the lowest temperature from the initial temperature during the entire thermoelectric operation time interval . ≪ / RTI >
- the predetermined saturation temperature section is higher than the lowest temperature and lower than the initial temperature.
- thermoelectric module performs the heat absorption operation
- waste heat is accumulated in the feedback device, and the temperature of the contact surface is raised by the waste heat to the predetermined saturated temperature section from the lowest temperature .
- the feedback device further includes a heat dissipation unit that dissipates at least a part of the waste heat to the outside of the feedback device, and as the heat dissipation unit releases at least a part of the waste heat to the outside of the feedback device, Is maintained at the saturation temperature interval.
- the feedback controller controls the feedback controller so that the first time at which the heat absorbing operation is performed and the first time at which the heat absorbing operation is performed so that the temperature rise or the temperature lowering beyond the predetermined threshold periodically occurs after the temperature of the contact surface reaches the saturation temperature section And the thermoelectric module is controlled such that a second time that is not performed is periodically repeated.
- the feedback controller applies the first voltage to the thermoelectric module during the first time such that the first time and the second time periodically repeat, and the first voltage during the second time And is not applied to the thermoelectric module.
- the feedback controller may control the thermoelectric module such that the temperature change amount of the contact surface during the first time and the second time is equal to or greater than a threshold temperature difference indicating a temperature difference at which the user can recognize the temperature change . ≪ / RTI >
- the threshold temperature difference may be changed according to the saturation temperature interval.
- the temperature change amount of the contact surface is adjusted according to the ratio of the first time and the second time.
- the feedback controller may be configured to check the saturation temperature section, set the threshold temperature difference based on the saturation temperature section, and adjust the first temperature and the second temperature so that the temperature change amount of the contact surface is not less than the threshold temperature difference. And a ratio of time is set.
- the thermoelectric module controls the thermoelectric module so that the temperature change amount of the contact surface is the first temperature change amount.
- the feedback controller may set the sum of the first time and the second time to be smaller than 60 seconds.
- the feedback controller may control the thermoelectric module such that a ratio of the second time to the first time is 0.9 or more.
- a semiconductor device comprising: a substrate having flexibility; a thermoelectric element disposed on the substrate and performing a heat absorbing operation for cold feedback; and a contact surface disposed on the substrate, A thermoelectric module for outputting the cold feedback by transferring the cold feedback to the user through the substrate and the contact surface; And a feedback controller provided to control the thermoelectric module, the method comprising the steps of: during a whole thermoelectric operation time interval, the temperature of the contact surface reaches a maximum temperature, Controlling the thermoelectric module to maintain the temperature of the contact surface; And controlling the thermoelectric module such that a temperature rise or a temperature lower than a predetermined threshold occurs periodically after the temperature of the contact surface reaches the predetermined temperature range.
- a feedback device comprising: a flexible substrate; a thermoelectric element disposed on the substrate and performing thermoelectric action for thermal feedback, wherein the thermoelectric action includes a heating operation and an endothermic operation; A thermoelectric module including a contact surface disposed on the substrate and outputting the thermal feedback by transmitting heat generated through the thermoelectric action to the user through the substrate and the contact surface; And a feedback controller provided to control the thermoelectric module, wherein the feedback controller applies a first voltage for causing the thermoelectric module to perform the thermoelectric conversion operation to the thermoelectric module during a first voltage application time, And a second voltage for allowing the thermoelectric module to perform the thermoelectric operation is applied to the thermoelectric module during the second voltage application time so that the degree of perception of the user with respect to the heat sensation provided to the user by the operation is improved. can do.
- the feedback controller applies the first voltage and the second voltage to the thermoelectric module to cause the thermoelectric module to perform the heat absorbing operation so that the feedback device provides a cool feeling to the user can do.
- the feedback device may be configured to apply the first voltage and the second voltage in the form of a duty signal.
- thermoelectric module performs the heat absorption operation
- waste heat is generated in the feedback device, and the temperature of the contact surface is raised by the waste heat.
- the feedback controller controls the feedback device so that the reference voltage is applied to the thermoelectric module,
- the magnitude of the first voltage is set to be larger than the magnitude of the reference voltage so that the temperature of the contact surface at the first voltage application time becomes lower than the magnitude of the reference voltage.
- the feedback controller controls the feedback device so that the reference voltage is applied to the thermoelectric module,
- the magnitude of the first voltage is set to be smaller than the magnitude of the reference voltage so that the amount of waste heat generated at the first voltage application time is reduced.
- the feedback controller controls the feedback device so that the reference voltage is applied to the thermoelectric module,
- the magnitude of the second voltage is set to be larger than the magnitude of the reference voltage so that the temperature of the contact surface at the second voltage application time becomes lower than the magnitude of the reference voltage.
- the feedback controller controls the feedback device so that the reference voltage is applied to the thermoelectric module,
- the magnitude of the second voltage is set to be smaller than the magnitude of the reference voltage so that the amount of the waste heat generated at the second voltage application time is reduced.
- the feedback controller controls the feedback controller such that the temperature of the contact surface is maintained at a predetermined temperature interval at the second voltage application time after the temperature of the contact surface reaches the minimum temperature from the initial temperature at the first voltage application time. And controlling the thermoelectric module.
- the feedback controller may set the magnitude of the first voltage to be larger than the magnitude of the second voltage.
- the feedback controller may apply the first voltage to the thermoelectric module during the first voltage application time so that the time at which the temperature of the contact surface reaches the minimum temperature is faster.
- the feedback controller may apply the second voltage to the thermoelectric module during the second voltage application time so that the time during which the temperature of the contact surface is maintained at the predetermined temperature interval becomes longer .
- the feedback controller applies the first voltage to the thermoelectric module during the first voltage application time so that the temperature of the predetermined temperature section is lowered, and the second voltage or the third voltage to the third voltage May be applied to the thermoelectric module during the second voltage application time, which is greater than the magnitude of the second voltage and smaller than the magnitude of the first voltage.
- a semiconductor device comprising: a substrate having flexibility; a thermoelectric element disposed on the substrate and performing a heat absorbing operation for cold feedback; and a contact surface disposed on the substrate, A thermoelectric module for outputting the cold feedback by transferring the cold feedback to the user through the substrate and the contact surface; And a feedback controller configured to control the thermoelectric module, the method comprising the steps of: providing a first voltage for causing the thermoelectric module to perform the heat absorbing operation to be applied to the thermoelectric module ; And a second voltage for causing the thermoelectric module to perform the heat absorbing operation to be applied to the thermoelectric module during the second voltage application time so that the degree of perception of the user with respect to the cold feeling provided to the user by the heat absorption operation is improved Step < / RTI >
- a feedback device comprising: a flexible substrate; a thermoelectric element disposed on the substrate and performing thermoelectric action for thermal feedback, wherein the thermoelectric action includes a heating operation and an endothermic operation; A thermoelectric module including a contact surface disposed on the substrate and outputting the thermal feedback by transmitting heat generated through the thermoelectric action to the user through the substrate and the contact surface; A heat dissipation unit for dissipating the waste heat to the outside when the thermoelectric element generates waste heat by performing the thermoelectric operation; And a liquid supply unit for supplying the liquid to the discharge unit so that the waste heat is discharged in a latent heat form.
- the feedback device may be configured to apply a first voltage to the thermoelectric module to cause the thermoelectric module to perform the heat absorbing operation so that the feedback device provides a cool feeling to the user.
- the feedback device may be configured to apply the first voltage in the form of a duty signal.
- the heat dissipation unit may include a heat transfer unit for transferring the waste heat and a heat dissipation unit for discharging the dissipation heat to the outside in a latent heat mode.
- the heat releasing portion is disposed on the thermoelectric module such that the discharge path of the waste heat is constituted by the thermoelectric module, the heat transfer portion, the liquid supply portion, and the heat releasing portion, and the liquid providing portion is disposed inside the heat releasing portion And the like.
- the thickness of the liquid supply part is adjusted so that the discharge path of the waste heat is shortened.
- the heat dissipation unit is disposed on the thermoelectric module, and the liquid supply unit is disposed on a side surface of the heat dissipation unit such that the discharge path of the waste heat is composed of the thermoelectric module and the heat dissipation unit, And can not be contacted with each other.
- the liquid supply portion may include a first liquid supply portion and a second liquid supply portion, the first liquid supply portion may be disposed on one side of the heat dissipation portion, and the second liquid supply portion may be disposed on another side surface of the heat dissipation portion .
- the feedback device may further include a protection unit that protects the feedback device from the outside, and when the discharge path of the waste heat includes the thermoelectric module and the heat dissipation unit, the contact between the heat dissipation unit and the user is difficult And the protective portion is disposed on the heat dissipation portion.
- the liquid supply portion may be characterized in that it includes a superabsorbent resin (SAP).
- SAP superabsorbent resin
- the heat transfer part is made of the first material and the heat releasing part is made of the second material
- the heat transfer performance and the ventilation performance of the first material and the second material are different from each other .
- the material of the heat transfer part and the material of the heat releasing part may be the same.
- At least one of the liquid supply portion and the heat dissipation portion may be separated from the feedback device.
- a cooling device includes a flexible substrate, a thermoelectric element disposed on the substrate and performing an endothermic operation for cold feedback, and a contact surface disposed on the substrate, A thermoelectric module for outputting the cold feedback by transferring cold heat generated by the thermoelectric module to the user through the substrate and the contact surface; A heat dissipation unit for dissipating the waste heat to the outside when waste heat is generated as the thermoelectric element performs the heat absorption operation; A liquid supplier for supplying a liquid to the discharge unit so that the waste heat is released in a latent heat form; And a support disposed to be in contact with the user and supporting the thermoelectric module, the heat dissipation unit, and the liquid supply unit.
- a feedback device includes a thermoelectric element that performs a thermoelectric operation for thermal feedback, the thermoelectric operation including a heating operation and an endothermic operation, and a thermally coupled contact surface with the thermoelectric element, A thermoelectric module for outputting the thermal feedback by transmitting heat generated through the thermoelectric action to the user through the contact surface; A heat dissipation unit for dissipating the waste heat to the outside when the thermoelectric element generates waste heat by performing the thermoelectric operation; And a liquid supply unit for supplying the liquid to the discharge unit so that the waste heat is discharged in a latent heat form.
- a feedback device comprising: a substrate having flexibility; a thermoelectric element disposed on the substrate for performing thermoelectric operation for thermal feedback, the thermoelectric operation including a heating operation and an endothermic operation; A thermoelectric module including a device and a contact surface disposed on the substrate, the thermoelectric module outputting the thermal feedback by transmitting heat generated through the thermoelectric action to the user through the substrate and the contact surface; A heat dissipation unit for dissipating the waste heat to the outside when the thermoelectric element generates waste heat by performing the thermoelectric operation; And a first liquid supply unit connected to one region of the heat dissipation unit to supply the liquid to the discharge unit so that the waste heat is released in a latent heat mode, wherein the liquid supplied to the heat dissipation unit according to the performance of the first liquid supply unit And the amount is adjusted.
- the performance of the first liquid supply portion may be such that the liquid absorbing performance indicating the degree of absorbing liquid from the outside and the liquid retaining performance indicating the degree of holding the liquid without releasing it to the outside when a predetermined pressure is externally applied And the like.
- the first liquid supply part may include a superabsorbent resin (SAP).
- SAP superabsorbent resin
- the liquid absorbing performance and the liquid retaining performance of the first liquid supplying portion may be controlled by the density of the cross link of the superabsorbent resin.
- the first liquid supply part is constituted by the first superabsorbent resin having the first density cross link
- the first liquid supply part has the second density - the second density is higher than the first density - > the second superabsorbent resin having the cross link of the second superabsorbent resin.
- the first liquid supply portion may include a first region of a lower portion and a second region of an upper portion, the first region may include a first superabsorbent resin, and the second region may include a second superabsorbent resin And the cross-link density of the first superabsorbent resin and the second superabsorbent resin are different from each other.
- the first liquid supply portion may include a first region and a second region that surrounds the first region, the first region may include a first superabsorbent resin, and the second region may include a second region Absorbent resin, and the cross-link density of the first superabsorbent resin and the second superabsorbent resin are different from each other.
- the feedback device may further include a second liquid supply unit having a higher liquid absorption performance than the first liquid supply unit, and the second liquid supply unit may further include a second liquid supply unit, And the liquid is supplied to the liquid supply portion.
- At least one of the first liquid supplier, the second liquid supplier, or the heat radiating unit may be configured to be separated from the feedback device.
- the feedback device may be configured to apply a first voltage to the thermoelectric module to cause the thermoelectric module to perform the heat absorbing operation so that the feedback device provides a cool feeling to the user.
- the feedback device may be configured to apply the first voltage in the form of a duty signal.
- a cooling device includes a substrate having flexibility, a thermoelectric element disposed on the substrate and performing an endothermic operation for cold feedback, and a contact surface disposed on the substrate, A thermoelectric module for outputting the cold feedback by transferring cold heat generated by the thermoelectric module to the user through the substrate and the contact surface; A heat dissipation unit for dissipating the waste heat to the outside when waste heat is generated as the thermoelectric element performs the heat absorption operation; And a first liquid supply unit connected to one region of the heat dissipation unit to supply the liquid to the discharge unit so that the waste heat is released in a latent heat mode, wherein the liquid supplied to the heat dissipation unit according to the performance of the first liquid supply unit And the amount is adjusted.
- a feedback device comprising: a flexible substrate; a thermoelectric element disposed on the substrate and performing thermoelectric action for thermal feedback, wherein the thermoelectric action includes a heating operation and an endothermic operation; A thermoelectric module including a contact surface disposed on the substrate and outputting the thermal feedback by transmitting heat generated through the thermoelectric action to the user through the substrate and the contact surface; A heat discharging unit for discharging the waste heat to the outside when the thermoelectric element generates waste heat due to the thermoelectric operation; A water supply unit for supplying moisture to the heat releasing unit so that the waste heat is released in a latent heat form; And a thermal buffer material provided as a material absorbing a predetermined heat from the outside and delaying a temperature rise of the contact surface due to the waste heat.
- the feedback device may be configured to apply a first voltage to the thermoelectric module to cause the thermoelectric module to perform the heat absorbing operation so that the feedback device provides a cool feeling to the user.
- the feedback device may be configured to apply the first voltage in the form of a duty signal.
- the thermal buffer material may be disposed in the heat dissipating portion in an independent material shape so as to absorb the waste heat in the heat dissipating portion.
- the thermal buffer material may be arranged in a layer shape.
- the heat buffer material may be disposed on the thermoelectric module, the liquid supply part may be disposed inside the heat dissipation part, and the thermal buffer material may be formed in the shape of the layer so that the time for transferring the waste heat to the heat dissipation part is delayed. And is disposed between the heat dissipation unit and the thermoelectric module.
- the heat dissipating unit may include a heat transfer unit for transferring the waste heat and a heat dissipation unit for dissipating the heat dissipation to the outside in a latent heat mode, wherein the heat dissipation unit is disposed on the thermoelectric module, Wherein the thermal buffer material is disposed between the heat transfer part and the heat releasing part so that the time for the waste heat to be transmitted to the liquid supply part is delayed, And the first and second electrodes.
- the heat dissipation unit is disposed on the thermoelectric module, and the liquid supply unit is disposed on a side surface of the heat dissipation unit such that the discharge path of the waste heat is composed of the thermoelectric module and the heat dissipation unit, And the thermal buffer material is disposed between the heat dissipation unit and the thermoelectric module in a shape of the layer so that the time for the waste heat to be transmitted to the heat dissipation unit is delayed.
- the thermal buffer material may include a phase change material (PCM).
- PCM phase change material
- the thermal buffer material may be characterized in that the temperature of the thermal buffer material is maintained without being raised while absorbing the heat of the predetermined temperature.
- the thermal buffer material may be characterized in that the thermal buffer material is changed from solid to liquid while absorbing the heat of the predetermined area.
- the thermal buffer material may be characterized by including xylitol or erythritol, but being embodied in the independent material form.
- the thermal buffer material may be included in a predetermined capsule to be realized in the independent material shape.
- thermal buffer material is configured to be separated from the feedback device such that when the thermal buffer material absorbs the waste heat, the waste heat is externally discharged outside the feedback device.
- a cooling device includes a flexible substrate, a thermoelectric element disposed on the substrate, performing a heat absorbing operation for the cold feedback, and a contact surface disposed on the substrate, A thermoelectric module for outputting the cold feedback by transmitting cold heat generated through the heat sink to the user through the substrate and the contact surface; And a heat discharging unit for discharging the waste heat to the outside when waste heat is generated as the thermoelectric element performs the thermoelectric operation.
- a water supply unit for supplying moisture to the heat releasing unit so that the waste heat is released in a latent heat form;
- a thermal buffer material provided as a material absorbing a predetermined heat from the outside and delaying a temperature rise of the contact surface due to the waste heat;
- a support disposed in contact with the user and supporting the thermoelectric module, the heat dissipation unit, the liquid supply unit, and the thermal buffer material.
- a feedback device includes a thermoelectric element that performs a thermoelectric operation for thermal feedback, the thermoelectric operation including a heating operation and an endothermic operation, and a thermally coupled contact surface with the thermoelectric element, A thermoelectric module for outputting the thermal feedback by transmitting heat generated through the thermoelectric action to the user through the contact surface; A heat discharging unit for discharging the waste heat to the outside when the thermoelectric element generates waste heat due to the thermoelectric operation; A water supply unit for supplying moisture to the heat releasing unit so that the waste heat is released in a latent heat form; And a thermal buffer material provided as a material absorbing a predetermined heat from the outside and delaying a temperature rise of the contact surface due to the waste heat.
- thermoelectric action including a heat generating operation and an endothermic operation, Emitting the waste heat to the outside of the feedback device when waste heat is generated in the feedback device according to the feedback device; Raising a temperature inside the feedback device to a first temperature range when the amount of the generated waste heat is larger than the waste heat to be emitted; And maintaining the temperature inside the feedback device within the first temperature range for a predetermined time such that a temperature rise inside the feedback device is delayed.
- the step of discharging the waste heat to the outside of the feedback device may include discharging the waste heat in a latent heat form using the liquid contained in the feedback device.
- the step of discharging the waste heat to the outside of the feedback device may be characterized by obtaining the liquid from the liquid supply contained in the feedback device.
- the step of maintaining the temperature inside the feedback device in the first temperature range may be characterized in that the user delays the temperature rise along the waste heat at the contact surface contacting the feedback device.
- the step of maintaining the temperature inside the feedback device in the first temperature range may be performed by adjusting the temperature inside the feedback device to the first temperature range using the thermal buffer material.
- the thermal buffer material may include a phase change material (PCM).
- PCM phase change material
- maintaining the temperature inside the feedback device in the first temperature range is such that the thermal buffer material absorbs the waste heat so that the temperature of the surface of the thermal buffer material during the predetermined time is within a second temperature range So as to be maintained.
- a phase transition may be generated in the thermal buffer material while the temperature of the surface of the thermal buffer material is maintained in the second temperature range.
- the thermal buffer material may be changed from solid to liquid while the temperature of the surface of the thermal buffer material is maintained in the second temperature range.
- the maximum temperature in the second temperature range is lower than the maximum temperature in the first temperature range.
- the thermal buffer material may be included in the feedback device in the form of an individual material or a layer.
- the method of controlling the temperature inside the feedback device may further include performing the heat absorbing operation such that cold feedback during the thermal feedback is provided to the user.
- a method of controlling a temperature of a cooling device for performing a heat absorbing operation to provide cool feedback to a user comprising the steps of: when waste heat is generated in the cooling device as the heat absorbing operation is performed, Discharging waste heat to the outside of the cooling device; Raising a temperature inside the cooling device to a first temperature range when the amount of waste heat generated is larger than the waste heat to be emitted; And maintaining a temperature inside the cooling device in the first temperature range so that the cold sensation provided to the user through the cool sensation feedback is not hindered by a certain level or more.
- the feedback device 100 is a device that provides thermal feedback to a user.
- the feedback device 100 may provide thermal feedback to the user by performing a heating operation or an endothermic operation to apply heat to the user or absorb heat from the user.
- the feedback device 100 is a device that performs power generation to provide power.
- the feedback device 100 can provide power by generating an electromotive force through a temperature difference within the feedback device 100.
- Thermal feedback is a type of thermal stimulation that stimulates the user's thermal sense mainly by stimulating the thermal sensory organs distributed in the user's body.
- the thermal feedback is a comprehensive stimulation of the user's thermal sensory organs .
- thermal feedback examples include warm feedback and cold feedback.
- the warm feedback means applying a warmth to a hot spot distributed on the skin so that the user feels warm and the cold feedback is to apply a cold heat to a cold spot distributed on the skin so that the user feels cold feeling it means.
- the column is a physical quantity represented by a positive scalar shape
- the expression 'applying cold heat' may not be strictly expressed from a physical point of view, but in the present specification, for convenience of description,
- the opposite phenomenon that is, a phenomenon in which heat is absorbed, is referred to as cold heat is applied.
- thermal feedback in this specification may further include thermal grill feedback in addition to warm feedback and cold feedback.
- thermal grill feedback means thermal feedback that applies a combination of heat and cold heat, and can be provided mainly by simultaneously outputting warm feedback and cold feedback.
- Thermal grill feedback may also be referred to as thermal sensory feedback in terms of providing a sensation close to intuition. A more detailed description of the thermal grill feedback will be provided later.
- the feedback device 100 may develop power.
- power is generated by the temperature difference in the thermoelectric module 1200 in the case of power generation while the power is applied to the thermoelectric module 1200 to be described later to perform the heat generation operation or the heat absorption operation. . ≪ / RTI >
- the feedback device 100 described above may be implemented in various forms. Hereinafter, some representative implementations of the feedback device 100 will be described.
- the gaming controller may mean an input means for receiving a user's operation in a game environment.
- the gaming controller plays a role of receiving a user operation used in a game in cooperation with various devices for driving games such as a game console device, a computer, a tablet, and a smart phone.
- the gaming controller may be integrated into the device itself.
- the game environment has been changed from the conventional form reflecting the user's operation on the game screen outputted through the conventional TV or monitor, and the user can use the Oculus Rift TM or Microsoft's Hololens ) TM or a head mounted display (HMD) such as a head mounted display device (HMD) is being transformed into a virtual reality or augmented reality.
- the gaming controller is expanding its role as a means of outputting various feedbacks to the user in order to increase the immersion feeling of the game by leaving the simple input means.
- Sony's Dual Shock TM for Playstation TM is equipped with a vibration function that outputs tactile feedback to the user.
- the feedback device 100 implemented as a gaming controller herein may provide a user with thermal feedback to add a thermal sensation that the user has not previously felt to the game as an interactive element, thereby inducing higher game immersion.
- feedback device 100 may consider wearable device 100b.
- the wearable device 100b may mean a device that is worn on the user's body and performs various functions.
- various wearable devices 100b have been developed with increasing interest in a human-machine interface (HMI).
- HMI human-machine interface
- the wearable device 100b is provided with a thermal feedback function A new user experience can be made possible.
- 1 to 12 relate to a wearable device 100b in an embodiment of a feedback device 100 according to an embodiment of the present invention.
- the wearable device 100b includes a watch type 100a-1 worn on the wrist similar to that shown in Fig. 1, a band type 100a-2 similar to that shown in Fig. 2, (Arm-sleeve) type 100a-4 similar to that shown in Fig. 4, a glove type which can be put in the hand like a glove similar to that shown in Fig. 5, a wrist strap type (100a-6, 100a-7) that can be used on the head similarly to that shown in Figs. 6 and 7, a scarf that can be put on the wearer's body
- the wearable device 100b can also be designed to provide thermal feedback to the user through a site in contact with the user's body.
- a portion that is, a contact surface 1600, which provides thermal feedback to the user's body in each type of wearable device 100a, is shown.
- the position of the contact surface 1600 is not limited to the drawings, and it is needless to say that the wearable device 100a may be provided with the contact surface 1600 at a portion different from the view.
- the gaming controller 100a and the wearable device 100b have been described above as examples of the feedback device 100, the embodiment of the feedback device 100 is not limited thereto.
- the feedback device 100 may be implemented with any device in which the thermal feedback function is usefully utilized.
- the feedback device 100 may be applied to a medical device for testing a patient's thermal sensation, or may be provided with a steering wheel (not shown) of a vehicle for the purpose of providing a moderate heat sensation in the hands of the driver, .
- the feedback device 100 may be used in an educational facility or a chair of a movie theater to provide a sense of heat to the student to enhance the educational effect, thereby providing the user with a thermal sensation in addition to the audiovisual sense, It might be.
- FIG. 13 is a block diagram of a configuration of a feedback device 100 according to an embodiment of the present invention.
- the feedback device 100 may include a thermoelectric module 1000, a heat dissipation unit 2000, and a liquid supplier 3000.
- the thermoelectric module 1000 generates a thermal or heat-absorbing operation along with a thermal feedback signal received from an external device via a communication module (not shown) that communicates with an external device other than the feedback device 100 Or thermal grill operation to output thermal feedback, and the user can experience a thermal experience by outputting thermal feedback.
- a temperature difference is generated around the thermoelectric module 1000, an electromotive force is generated, and the thermoelectric module 1000 can provide power using the electromotive force.
- the heat dissipating unit 2000 may discharge the waste heat generated in the thermoelectric module 1000 to the outside of the feedback device 100.
- the waste heat may refer to the remaining heat other than the heat used to provide a thermal experience to the user in heat generated in the feedback device 100.
- the residual heat remaining in the feedback device 100 after the thermal feedback is output in the thermoelectric module 1000 may be included in the waste heat.
- the heat dissipating unit 2000 will be described in more detail with reference to FIG.
- the liquid supplier 3000 may be configured to discharge waste heat in the heat dissipating unit 2000 in the form of latent heat.
- the liquid supplier 3000 may supply liquid to the heat dissipating unit 2000, and the liquid provided to the heat dissipating unit 2000 may be vaporized by the waste heat transferred from the thermoelectric module 1000 .
- a larger amount of waste heat can be discharged to the outside due to the vaporization.
- the temperature of the feedback device 100 may be lowered due to the vaporization.
- the evaporated liquid may be supplied to the heat dissipating unit 2000, but it may take heat from the non-evaporated liquid, thereby lowering the temperature of the liquid that has been supplied to the heat dissipating unit 2000 but not evaporated.
- the liquid supplier 3000 will be described in more detail with reference to FIG.
- the thermoelectric module 1000 may output thermal feedback to transmit heat and cold to the user by performing a heat generating operation, an endothermic operation, or a thermal grill operation.
- the thermoelectric module 1000 may use a thermoelectric element such as a Peltier element to perform the heat generating operation, the heat absorbing operation, or the thermal grill operation.
- Peltier effect is a thermoelectric phenomenon discovered by Jean Peltier in 1834. When a different kind of metal is bonded and then the current flows, an exothermic reaction occurs on one side and a cooling reaction occurs on the other side This means the phenomenon that occurs.
- Peltier devices are devices that produce such a Peltier effect. Peltier devices are initially made of dissimilar metal assemblies such as bismuth and antimony, but in recent years they have been manufactured in such a way that NP semiconductors are arranged between two metal plates to have higher thermoelectric efficiency .
- the Peltier device is able to instantly induce heat and endothermic currents on both metal plates when current is applied and to convert heat and endothermic currents according to the current direction and to adjust the heat and endothermic degree relatively precisely according to the amount of current, It is suitable to be used for heat generation operation and heat absorption operation.
- flexible thermoelectric elements it has become possible to manufacture the flexible thermoelectric element in a form that can be easily contacted to the user's body, and thus the possibility of commercial use as the feedback device 100 is increasing.
- thermoelectric module 1000 can perform the heat generating operation or the heat absorbing operation as electricity is applied to the thermoelectric element. Physically, an exothermic reaction and an endothermic reaction occur at the same time in a thermoelectric element to which electricity is applied.
- the surface of the thermoelectric module 1000 that is in contact with the user generates heat, It is defined as endothermic operation.
- a thermoelectric element can be constructed by disposing an N-P semiconductor on a substrate 1220, where heat is generated at one side and heat is absorbed at the other side.
- thermoelectric module 1000 heat generation at the front surface and heat absorption at the back surface of the thermoelectric module 1000 are defined as performing a heat generation operation, , And heat generation at the rear surface can be defined as performing an endothermic operation.
- thermoelectric effect is induced by the electric charge flowing through the thermoelectric element, it is possible to describe the electric current inducing the heat generation operation or the heat absorption operation of the thermoelectric module 1000 from the viewpoint of current.
- voltage In terms of voltage. However, this is merely for the sake of convenience of description, and it is understood that a person having a general knowledge in the technical field to which the present invention belongs (hereinafter referred to as a "person skilled in the art" It should be noted that the present invention should not be construed as limited in terms of the voltage, since it is not necessary to cause accidents.
- thermoelectric module 1000 can provide power using the temperature difference of the thermoelectric module 1000.
- the Seebeck effect is a thermoelectric phenomenon discovered by Thomas Johnson Seeback in 1821, when a different kind of metal plate is bonded and then a different temperature is applied to a different metal plate, Which is higher than the Fermi level and diffuses to the low temperature part to generate a potential difference to provide power.
- the JEBEC device is a device that produces such a Seebeck effect, and is manufactured by arranging N-P semiconductors between two metal plates like a Peltier device.
- the thermoelectric module 100 can be understood as a configuration capable of providing the Peltier effect or the Seebeck effect according to the energy applied to the thermoelectric module 100.
- thermoelectric module 1.3.1.2. Configuration of thermoelectric module
- thermoelectric module 14 is a block diagram of a configuration of a thermoelectric module according to an embodiment of the present invention.
- thermoelectric module 1000 includes a substrate 1220, a thermocouple array 1240, a contact surface 1600, a power terminal 1260, a power storage 1270, and a feedback controller 1400 .
- the contact surface 1600 directly contacts the user's body to transmit heat or cold heat generated from the thermoelectric module 1000 to the user's skin.
- the portion of the external surface of the feedback device 100 that is in direct or indirect contact with the user's body may be the contact surface 1600.
- the contact surface 1600 may be disposed on the inner surface of the feedback device 100.
- the contact surface 1600 may be formed in the grip portion of the user of the feedback device 100, and when the feedback device 100 is a wearable device of the wrist band type as shown in Fig. 3, All or a part of the inner surface of the contact surface 1600 may be the contact surface 1600.
- the contact surface 1600 may be provided as a layer directly or indirectly attached to the outer surface of the thermocouple array 1240 performing the heat generating operation or the heat absorbing operation in the thermoelectric module 1000 (direction of the user's body). This type of contact surface 1600 may be disposed between the thermocouple array 1240 and the skin of the user to perform heat transfer. To this end, the contact surface 1600 may be provided with a material having a high thermal conductivity so that heat transfer from the thermocouple array 1240 to the user's body is well performed. The layer type contact surface 1600 also prevents direct exposure of the thermocouple array 1240 to the outside, thereby protecting the thermocouple array 1240 from external impacts.
- the contact surface 1600 is disposed on the outer surface of the thermocouple array 1240.
- the outer surface of the thermocouple array 1240 itself may be the contact surface 1600 .
- some or all of the front surface of the thermocouple array 1240 can be the contact surface 1600.
- the substrate 1220 serves to support the unit thermocouples 1241 and is provided as an insulating material.
- ceramics can be selected as the material of the substrate 1220.
- the substrate 1220 may have a flat plate shape, but this is not necessarily the case.
- the substrate 1220 may be provided with a flexible material so as to have flexibility that is universally available for various types of feedback devices 100 having contact surfaces 1600 of various shapes.
- the portion where the feedback device 100 contacts the user is a curved surface.
- the thermoelectric module 1000 at the curved surface portion May be important to have flexibility.
- the flexible material used for the substrate 1220 for this purpose include glass fiber and flexible plastic.
- the thermoelectric module 1000 may not include the substrate 1220. In this case, the heat or cold heat generated in the thermocouple array 1240 can be directly transferred to the contact surface 1600 without passing through the substrate 1220.
- the thermocouple array 1240 is composed of a plurality of unit thermocouples 1241.
- the thermocouple array 1240 may be disposed on a substrate 1220.
- As the unit thermocouples 1241 different pairs of metals (for example, bismuth and antimony) can be used, but mainly N-type and P-type semiconductor pairs can be used.
- the semiconductor pair is electrically connected at one end and electrically connected to the unit thermocouple 1241 at the other end. Electrical connection between the semiconductor pair 1241a and 1241b or the adjacent semiconductor is performed by a conductor member 1242 disposed on the substrate 1220.
- the conductor member 1242 may be a lead or an electrode such as copper or silver.
- the unit thermocouples 1241 may be electrically connected in series.
- the unit thermocouples 1241 connected in series form a thermocouple group 1250, and the thermocouple group 1250 may be a thermocouple array 1240).
- the power terminal 1260 can apply power to the thermoelectric module 1000.
- the thermocouple array 1240 can generate heat or absorb heat according to the voltage value of the power source applied to the power source terminal 1260 and the direction of the current. More specifically, the power terminals 1260 may be connected to one thermoelectric couple group 1250 by two. Accordingly, when there are a plurality of thermoelectric couple groups 1250, two power terminals 1260 may be arranged for each thermoelectric couple group 1250. According to this connection method, the voltage value and the current direction are individually controlled for each thermoelectric couple group 1250, and it is possible to control whether heat generation or endothermic performance is performed, and the degree of heat generation or endothermic generation can be controlled.
- the power supply terminal 1260 receives the electrical signal output from the feedback controller 1400, and as a result, the feedback controller 1400 adjusts the direction or size of the electrical signal, The heat generation operation and the heat absorption operation can be controlled. Further, when there are a plurality of thermoelectric couple groups 1250, it is also possible to separately control the electric signals applied to the power terminals 1260 individually for each thermoelectric couple group 1250.
- the power supply terminal 1260 can acquire power from the power storage unit 1270 and obtain power from an external power source.
- the power storage unit 1270 can store power.
- the power stored in the power storage unit 1270 may be provided to the thermoelectric module 1000 through the power terminal 1260.
- the thermocouple array 1240 when heat is applied to the thermocouple array 1240 to generate a temperature difference in the thermocouple array 1240, the thermocouple array 1240 can generate power and the power storage 1270 May store the power generated in thermocouple array 1240.
- the feedback controller 1400 may apply an electrical signal to the thermocouple array 1240 via the power terminal 1260.
- the feedback controller 1400 may control the thermoelectric module 1000 to apply a voltage to the thermoelectric element of the thermoelectric module 1000 to perform the heat generating operation or the heat absorbing operation.
- the feedback controller 1400 may also perform signal processing between the external device and the feedback unit 1000. For example, the feedback controller 1400 receives information about thermal feedback from an external device through a communication module (not shown), analyzes information about the thermal feedback to determine the type and strength of the thermal feedback, And the thermocouple array 1240 can output thermal feedback by applying an electrical signal to the power terminal 1260. [
- the feedback controller 1400 performs calculation and processing of various information, and outputs an electric signal to the thermocouple array 1240 according to the processing result to control the operation of the thermocouple array 1240.
- the feedback controller 1400 can control the generated power when the power is generated in the thermocouple array 1240.
- the feedback controller 1400 may determine whether to store the generated power in the power storage unit 1270 or to supply the generated power directly from the thermocouple array 1240 to the power supply terminal 1260.
- the feedback controller 1400 may be implemented as a computer or similar device depending on the hardware, software, or combination thereof.
- the hardware of the feedback controller 1400 may be provided in the form of an electronic circuit that processes an electrical signal to perform a control function, and may be provided in a form of a program or a code for driving a hardware circuit in software.
- the feedback device 100 may be provided with a plurality of the thermoelectric modules 1000 described above.
- the thermoelectric module 1000 may be mounted for each contact.
- the feedback device 100 may be provided with the feedback controller 1400 or the entire thermoelectric module 1000 for each thermoelectric module 1000, A single feedback controller may be provided.
- one or a plurality of thermoelectric modules 1000 may be disposed in each feedback device 100.
- thermoelectric module 1000 Some representative aspects of the thermoelectric module 1000 will be described based on the description of the configuration of the thermoelectric module 1000 described above.
- FIG. 15 is a view of one embodiment of a thermoelectric module 1000 according to an embodiment of the present invention.
- thermoelectric module 1000 a pair of substrates 1220 are provided so as to face each other in one form of the thermoelectric module 1000.
- a contact surface 1600 is positioned outside one of the two substrates 1220 to transmit heat generated by the thermoelectric module 1000 to the user's body. If the substrate 1220 is used as the flexible substrate 1220, the thermoelectric module 1000 can be provided with flexibility.
- a plurality of unit thermoelectric pairs 1241 are positioned between the substrates 1220.
- Each unit thermoelectric couple 1241 is composed of a semiconductor pair of an N-type semiconductor and a P-type semiconductor.
- the N-type semiconductor and the P-type semiconductor are electrically connected to each other at one end by a conductor member 1242 in each unit thermoelectric couple 1241.
- the other ends of the N-type semiconductor and the P-type semiconductor of the unit thermoelectric couple 1241 are electrically connected to each other by the other end of the P-type semiconductor and the N-type semiconductor of the adjacent unit thermoelectric couple 1241 and the conductor member 1242
- the electrical connection between the unit elements is achieved. Accordingly, the unit connection elements are connected in series to form one thermoelectric couple group 1250.
- the entire thermocouple array 1240 is composed of one thermoelectric couple group 1250, and the whole thermoelectric couple 1241 is connected in series between the power terminals 1260, The same operation is performed across the entire surface. That is, when power is applied to the power terminal 1260 in one direction, the thermoelectric module 1000 performs the heat generating operation, and when the power is applied in the opposite direction, the heat conducting module 1000 performs the heat absorbing operation.
- thermoelectric module 1000 is a view showing another embodiment of the thermoelectric module 1000 according to the embodiment of the present invention.
- thermoelectric couple array 1240 has a plurality of thermoelectric couple groups 1250 and the thermoelectric couple groups 1250 are connected to the respective power terminals 1260, Control is possible.
- FIG. 16 currents in different directions are applied to the first thermo couple group 1250 and the second thermo pair group 1250 so that the first thermo pair group 1250 performs a heat generation operation 'Forward'), and the second thermo couple group 1250 may perform an endothermic operation (the current direction at this time is referred to as 'reverse').
- thermocouple group 1250 A different voltage value may be applied to the power terminal 1260 of the first thermocouple group 1250 and the power terminal 1260 of the second thermocouple group 1250 to form the first thermocouple group 1250, And the second thermo couple group 1250 may perform a heat generating operation or a heat absorbing operation to a degree different from each other.
- thermoelectric couple groups 1250 are arranged in a one-dimensional array in the thermoelectric couple array 1240.
- the thermoelectric couple groups 1250 may be arranged in a two-dimensional array.
- thermoelectric module 1000 is a view showing another embodiment of the thermoelectric module 1000 according to the embodiment of the present invention. Referring to FIG. 17, using the thermocouple group 1250 arranged in a two-dimensional array, it is possible to more finely control the operation of each region.
- thermoelectric module 1000 is described as using a pair of opposing substrates 1220, it is also possible to use a single substrate 1220 alternatively.
- FIG. 18 is a view showing yet another embodiment of the thermoelectric module 1000 according to the embodiment of the present invention.
- a unit thermoelectric couple 1241 and a conductor member 1242 may be embedded in a single substrate 1220 in a single substrate 1220. It is possible to use glass fiber or the like as the substrate 1220 for this purpose. By using a single substrate 1220 of this type, more flexibility can be given to the thermoelectric module 1000.
- thermoelectric module 1000 The various forms of the thermoelectric module 1000 described above can be combined or modified within a range that is obvious to a person skilled in the art.
- the contact surface 1600 is formed on the front surface of the thermoelectric module 1000 as a separate layer from the thermoelectric module 1000. However, May be the contact surface 1600.
- the outer surface of one substrate 1220 can be the contact surface 1600.
- the feedback device 100 may output thermal feedback as the thermoelectric module 1000 performs a heating operation or an endothermic operation.
- Thermal feedback may include warm feedback, cold feedback, and thermal grill feedback.
- the warm-feeling feedback can be outputted by the thermoelectric module 1000 performing the heat-generating operation, and the cold-feeling feedback can be outputted by performing the heat-absorbing operation.
- the thermal grill feedback can be output through a thermal grill operation in which a heat generating operation and a heat absorbing operation are combined.
- the feedback device 100 can output the above thermal feedback at various intensities.
- the intensity of the thermal feedback can be adjusted in such a manner that the feedback controller 1400 of the thermoelectric module 1000 adjusts the magnitude of the voltage applied to the thermocouple array 1240 through the power terminal 1260.
- the method of controlling the magnitude of the voltage includes a method of smoothing the duty signal and finally applying power to the thermoelectric element. That is, adjusting the voltage level by adjusting the duty rate of the duty signal may also be considered to be included in adjusting the voltage level.
- the feedback device 100 may perform a heating operation with the thermoelectric module 1000 to provide warm feedback to the user.
- the thermoelectric module 1000 may perform a heat absorbing operation to provide cold feedback to the user.
- FIG. 19 is a diagram illustrating a heating operation for providing warm feedback according to an embodiment of the present invention
- FIG. 20 is a graph relating to strength of warm feedback in accordance with an embodiment of the present invention.
- the heat generating operation may be performed by inducing an exothermic reaction in the direction of the contact surface 1600 as the feedback controller 1400 applies the forward current to the thermocouple array 1240.
- the feedback controller 1400 applies a constant voltage (hereinafter referred to as a "constant voltage") to the thermocouple array 1240
- the thermocouple array 1240 starts the heat generating operation, 1600 is raised to the saturation temperature with time as shown in Fig. Therefore, the user feels that the user does not feel warm or weak feeling at the beginning of the heat generation operation, feels warmth until the temperature reaches the saturation temperature, and then provides warm feedback corresponding to the saturation temperature after a certain period of time has elapsed do.
- FIG. 21 is a diagram illustrating a heating operation for providing cold feedback according to an embodiment of the present invention
- FIG. 22 is a graph illustrating strength of cold feedback according to an embodiment of the present invention.
- the heat absorption operation may be performed by inducing an endothermic reaction in the direction of the contact surface 1600 as the feedback controller 1400 applies a reverse current to the thermocouple array 1240.
- the feedback controller 1400 applies a constant voltage (hereinafter referred to as a reverse voltage) to the thermocouple array 1240
- the thermocouple array 1240 starts the heat absorbing operation
- the temperature of the heat exchanger 1600 rises to the saturation temperature with time as shown in Fig. Therefore, the user feels that the user does not feel cold feeling at the beginning of the heat absorbing operation, feels weak, feels that the cool feeling rises until reaching the saturation temperature, and then receives the cool feeling feedback corresponding to the saturation temperature after a certain time has elapsed do.
- the temperature change amount due to the heat generation operation may be larger than the temperature change amount due to the heat absorption operation.
- the temperature change amount means a temperature difference between the initial temperature and the saturation temperature in a state where the thermoelectric module 1000 is not operated.
- thermoelectric conversion operation " thermoelectric conversion operation "
- the feedback controller 1400 can control the heat generation degree or the heat absorption degree of the thermoelectric module 1000 by adjusting the magnitude of the voltage applied thereto . Therefore, the feedback controller 1400 can adjust the direction of the current to select the type of thermal feedback to provide during the warm feedback and the cold feedback, and adjust the magnitude of the voltage to adjust the strength of the warm feedback or cold feedback.
- FIG. 23 is a graph illustrating the strength of warm / cold feedback using voltage regulation according to an embodiment of the present invention.
- the feedback controller 1400 applies a voltage value of five levels in a forward direction or a backward direction, thereby allowing the feedback device 100 to provide the user with a total of ten thermal Feedback can be provided.
- the warm feedback and the cold feedback are shown to have the same number of strength classes, respectively.
- the number of strength classes of warm feedback and cold feedback is not necessarily the same and may be different from each other.
- the warm-up feedback and the cold feedback are implemented by changing the current direction using the same-sized voltage value.
- thermal feedback As described above, by adjusting the intensity of the thermal feedback, it is possible to provide subtle thermal feedback such as strong warmth, weak warmth, strong cold feeling, and weak cold feeling, apart from simply providing warmth and cold feeling to the user.
- Such various types of thermal feedback can provide a higher degree of immersion for the user in a game environment or a virtual / augmented reality environment, and it is possible to inspect a patient's senses more precisely when applied to a medical device.
- Feedback device 100 may provide thermal grill feedback in addition to warm-up feedback and cooling feedback.
- Thermal sensation means that when a person's body is stimulated at the same time with the warmth and coldness, it is perceived as a sensation without recognizing it as warmth and cold feeling.
- the feedback device 100 can provide thermal grill feedback to the user through a thermal grill operation that combines the exothermic and endothermic actions.
- the feedback device 100 may perform various types of thermal grill operations to provide thermal grill feedback, which will be described later, after describing the types of thermal grill feedback.
- Thermal grill feedback may include neutral thermal grill feedback, hot grill feedback, and cold grill feedback.
- neutral column grill feedback causes the user to generate neutral heat, heat, and cold and heat, respectively.
- Neutral heat sensation means sensation without feelings of warmness and coldness.
- Thermal sensation means feeling sensation in addition to warmth, and cold sensation can mean feeling sensation in addition to feeling cold.
- Neutral heat sensation is caused when the user feels warmth and cold sensation falls within a predetermined ratio range.
- the percentage of neutral fever sensation (hereinafter referred to as 'neutral ratio') can be different for each part of the body that is provided with thermal feedback, and even if it is the same body part, it may be slightly different for each individual. In a situation where the strength is given larger than the strength, there is a tendency to feel a neutral heat sensation.
- the intensity of the thermal feedback may be the amount of heat that the feedback device 100 applies to the body part that is in contact with the contact surface 1600, or the amount of heat that the feedback device 100 absorbs from the body part. Therefore, when thermal feedback is applied to a certain area for a certain period of time, the intensity of the thermal feedback can be expressed as the difference between the warmth of the target site to which the thermal feedback is applied or the temperature of the cold feeling.
- human body temperature is usually between 36.5 and 36.9 °C, and skin temperature varies from person to person, but it is known to be about 30 ⁇ 32 °C on average.
- the temperature of the palm is about 33 °C, which is slightly higher than the average skin temperature.
- the temperature values described above may be somewhat different depending on the individual, and even the same person may vary to some extent.
- the skin sensation is expressed by the ratio of the temperature difference caused by the cold sensation to the sensible temperature difference
- the neutral ratio is in the range of about 1.5 to 5.
- the thermal sensation can be felt when the warmth is larger than the neutral ratio, and the cold sensation can be felt when the cold sensation is larger than the neutral ratio.
- the feedback device 1600 may perform a thermal grill operation in a voltage regulated manner.
- the voltage regulating thermal grill operation can be applied to the feedback device 1600 in which the thermocouple array 1240 is comprised of a plurality of thermocouple groups 1250.
- the feedback controller 1400 performs a heat generating operation by applying a forward voltage to a part of the thermoelectric couple group 1250 and applies an inverse voltage to another part to perform a heat absorbing operation
- the thermoelectric module 1000 may be provided by simultaneously providing warm feedback and cold feedback.
- 25 is a diagram illustrating a voltage regulating thermal grill operation according to an embodiment of the present invention.
- thermocouple array 1240 includes a plurality of thermocouple groups 1250 arranged to form a plurality of lines.
- the feedback controller 1400 allows the first thermocouple groups 1250-1 (e.g., the thermocouple groups of the odd-numbered lines) to perform a heat-generating operation and the second thermocouple groups 1250-2
- the even thermocouple groups of even lines can be powered to perform an endothermic operation. If the thermocouple groups 1250 alternately perform the heat generating operation and the heat absorbing operation according to the line arrangement, the user can receive warm and cold sensation at the same time, and as a result, thermal grill feedback can be provided.
- the distinction between the odd-numbered lines and the even-numbered lines is arbitrary, and vice versa.
- the feedback device 100 determines whether the saturation temperature of the first thermo couple pairs 1250-1 and the saturation temperature of the second thermo pair pairs 1250-2 are in accordance with the neutral ratio So as to provide neutral column grill feedback.
- 26 is a table of voltages for providing neutral column grill feedback in a voltage regulation scheme according to an embodiment of the present invention.
- the feedback controller 1400 may apply five constant voltages and reverse voltages to the thermoelectric module 1000, respectively, and the thermoelectric module 1000 accordingly generates heat of the fifth grade, Assuming that the feedback device 100 has the same magnitude of the temperature change amount due to the heat-generating operation of the same grade and the same temperature change amount between the respective grades, if the neutral ratio is set to 3,
- the controller 1400 applies a constant voltage of the first class, which is the smallest grade to the first thermocouples group 1250-1, and a reverse voltage of the third class, to the second thermocouples group 1250-2.
- the thermoelectric module 1000 can provide neutral thermal thermal feedback.
- the feedback controller 1400 applies a second-level constant voltage to the first thermo couple group 1250-1 and a second thermo couple group 1250-1 to provide neutral thermal grill feedback, -2), a reverse voltage of the fifth grade can be applied.
- the feedback controller 1400 outputs the first-level constant voltage to the first thermo couple group 1250-1 and the fourth-grade station to the second thermo pair group 1250-2 A voltage can be applied to generate neutral thermal grill feedback.
- the neutral ratio is 2
- the feedback controller 1400 provides a neutral thermal sensation by applying a constant voltage of the first class and a reverse voltage of the second class, or by applying a constant voltage of the second class and a reverse voltage of the fourth class can do.
- the neutral neutrality of the electrons (when the first-level constant voltage and the second-class reverse voltage are used) is greater than the latter neutral heat conduction (when the second-class constant voltage and the fourth-class reverse voltage are used) It can be strong. That is, even in the case of thermal grill feedback, its strength can be adjusted.
- the above description regarding the manner of providing the neutral heat trapping is illustrative, and the present invention is not limited thereto. For example, it is not necessary that the number of classes of the thermal feedback is five, and the number of the cold heat and the heat grade may be different. Also, the temperature interval of each grade should not be constant, for example, the voltage interval of each grade may be constant.
- the feedback controller 1400 may also provide the hot grill feedback by adjusting the constant voltage and reverse voltage to be below the neutral ratio or by adjusting the neutral grid ratio to be above the neutral ratio.
- the feedback controller 1400 applies the first-level constant voltage to the first thermo couple group 1250-1 and the second thermo couple group 1250-1 -2) is applied to the thermoelectric module 1000, the thermoelectric module 1000 generates a thermal sensation and a sensation at a rate lower than the neutral ratio, thereby providing a warm grill feedback to the user simultaneously feeling warmth and sensation .
- the constant voltage need not always be the constant voltage used for the neutral column grill feedback.
- the feedback controller 1400 may use the fourth-level constant voltage and the fourth-degree reverse voltage to allow the thermoelectric module 1000 to provide thermal grill feedback.
- the feedback controller 1400 sets the neutral ratio to 3, the (first and fourth grades) or (first and fifth grades) (constant voltage and reverse voltage) .
- FIG. 27 is a view for explaining a liquid supply unit according to an embodiment of the present invention.
- the liquid supplier 3000 may be configured to provide a liquid to the heat dissipation unit 2000, which will be described later, so that the waste heat is discharged in the form of latent heat in the heat dissipation unit 2000.
- the liquid may include all of the liquid that can absorb the waste heat such as water, alcohol, and methanol and evaporate by the waste heat.
- the liquid can be evaporated when the amount of waste heat absorbed reaches the inherent vaporization heat of the liquid. That is, when the liquid is evaporated, the waste heat corresponding to the inherent vaporization heat may be discharged to the outside of the feedback device 100 in the heat dissipation unit 2000.
- the liquid supply portion 3000 may include a liquid holding portion 3100 and the liquid holding portion 3100 may hold a predetermined amount of liquid to provide a liquid to the heat dissipating portion 2000. [ The maximum amount of liquid that can be held by the liquid holding portion 3100 can be determined according to the performance of the liquid holding portion 3100. [
- the liquid retention portion 3100 may include a liquid retention material that is a material capable of retaining a predetermined amount of liquid for a predetermined period of time.
- a liquid retention material that is a material capable of retaining a predetermined amount of liquid for a predetermined period of time.
- SAP Super Absorbent Polymer
- the superabsorbent resin may represent a polymer that absorbs liquid upon introduction of a hydrophilic group in a three-dimensional network structure through cross-linking (cross-linking) between polymer chains or in a single structure. That is, the superabsorbent resin has a three-dimensional network structure or a single structure and has a large amount of hydrophilic groups, and can have water insolubility and hydrophilicity at the same time.
- examples of the performance of the liquid supplier 3000 include liquid absorption performance and liquid holding performance.
- the liquid absorption performance represents the liquid absorption amount per unit mass of the liquid supplier 3000, and in one example, the superabsorbent resin can absorb a liquid having a mass several tens to several hundreds times the mass of the superabsorbent resin.
- the liquid retaining performance indicates the extent to which the liquid supplier 3000 holds the liquid without releasing it to the outside when a predetermined pressure is applied from the outside. Such liquid absorbing performance and liquid retaining performance can be determined according to the cross link density of the superabsorbent resin when the liquid supplier 3000 is a superabsorbent resin.
- the degree of cross linking between the polymer chains of the superabsorbent resin is determined depending on the density of the cross link. That is, the property of the superabsorbent resin is determined according to the cross link density, which will be described in more detail in FIG. 36 to FIG.
- the liquid holding portion 3100 may include other materials having liquid holding ability and liquid releasing ability.
- the liquid dispenser 3000 may be physically separated in the feedback device 100. In one example, the liquid dispenser 3000 is capable of absorbing liquid in the separated state at the feedback device 100. [ In addition, the liquid supplier 3000 may be replaced with another liquid supply portion.
- FIG. 28 is a view for explaining a heat dissipating unit according to an embodiment of the present invention.
- the heat dissipating unit 2000 can discharge the waste heat generated from the thermoelectric module 1000 to the outside of the feedback device 100.
- the waste heat may refer to any heat other than the heat that is used to provide the user with a thermal experience of the heat generated by the feedback device 100.
- the residual heat remaining in the feedback device 100 after thermal feedback is output in the thermal output module 1000 may be included in the waste heat.
- the waste heat does not affect the user.
- the components of the feedback device 100 may be deteriorated and unnecessary heat is transmitted to the user by the waste heat The user's thermal experience may be degraded.
- the heat dissipating unit 2000 can discharge the waste heat to the outside of the feedback device 100.
- the heat dissipating unit 2000 may include a heat transmitting unit 2100 and a heat emitting unit 2200.
- the heat transfer part 2100 is provided to receive the waste heat from the thermoelectric module 1000 and to transfer the waste heat to the heat release part 2200.
- the heat release part 2200 discharges the waste heat to the outside of the feedback device 100 can do.
- the heat transfer portion 2100 and the heat radiation portion 2200 may be implemented in various forms.
- heat transfer portion 2100 and heat dissipation portion 2200 may be physically connected.
- the heat transfer part 2100 and the heat releasing part 2200 are directly in contact with each other, so that waste heat can be directly transferred to the heat releasing part from the heat transfer part 2100.
- the heat transfer portion 2100 and the heat radiation portion 2200 may be connected through a physical medium. In this case, the waste heat can be transferred from the heat transfer part 2100 to the heat emission part 2200 through the medium. In this case, even if the heat transfer part 2100 and the heat releasing part 2200 are not connected to each other, the waste heat may be supplied to the liquid supplier 3000 May be transmitted from the heat transfer portion 2100 to the heat emitting portion 2200.
- the heat transfer portion 2100 and the heat releasing portion 2200 may not be physically connected.
- waste heat can indirectly be transferred from the heat transfer portion 2100 to the heat releasing portion.
- the waste heat may be transferred from the heat transfer portion 2100 through air.
- the heat transfer portion 2100 and the heat radiation portion 2200 may be integrally formed. That is, the transfer of the waste heat and the discharge of the waste heat in the integrated heat dissipation unit 2000 can be performed together.
- the heat dissipating unit 2000 may be composed of only the heat dissipating unit 2200.
- the heat releasing part 2200 can immediately discharge the waste heat to the outside after acquiring waste heat from the outside.
- the heat transfer portion 2100 and the heat radiation portion 2200 can be implemented in various embodiments, and the configuration for performing the transfer of the waste heat and / or the discharge of the waste heat, .
- the heat sink 2000 can be physically separated in the feedback device 100.
- the heat dissipating unit 2000 may be separated from the feedback device 100 and replaced with another heat dissipating unit.
- FIG. 53 shows a graph of the temperature of the heat provided to the user in the feedback device 100 according to an embodiment of the present invention.
- the x-axis represents time
- the y-axis represents temperature
- line 5301 represents the temperature of contact surface 1600 of thermoelectric module 1000 with time.
- feedback device 100 may operate as a cooling device that conveys cool to the user.
- the thermocouple array 1240 of the thermoelectric module 1000 performs a heat absorbing operation and can transmit cold heat to the contact surface 1600.
- the temperature of the contact surface 1600 can be lowered.
- the temperature of the contact surface 1600 is formed along the line 5302, and the minimum temperature can be maintained in the section 5312 after reaching the minimum temperature in the section 5311.
- thermocouple array 1240 performs the heat absorbing operation, waste heat can be accumulated in the thermoelectric module 1000, and the temperature of the contact surface is affected by the waste heat and then the temperature rises after reaching the minimum temperature , The temperature can be maintained at a predetermined temperature interval 5322.
- the lowest temperature of the contact surface 1260 when the waste heat is taken into consideration can be made higher than the lowest temperature of the contact surface when waste heat is not taken into consideration.
- the temperature of the contact surface 1600 in the section 5312 may be higher than the minimum temperature in the section 5311 due to the waste heat.
- the difference between the temperature of the contact surface 1600 and the temperature of the contact surface 1600 when the waste heat is not taken into account when the waste heat is taken into account can be varied depending on how much the waste heat is emitted from the feedback device 100 as well. For example, when the waste heat is well discharged in the feedback device 100, the temperature difference is reduced, whereas when the waste heat is not released well, the temperature difference may be increased. Thus, in the performance of the feedback device 100, the ability of the waste heat to discharge is an important factor.
- the configuration of the feedback device 100 for improving the waste heat releasing performance will be described in detail.
- the waste heat transfer path can be defined as the path from the generation of waste heat to the discharge of waste heat.
- the waste heat transfer path may refer to a path from the thermoelectric module 1000 where waste heat is generated to the heat dissipation unit 2000 where waste heat is discharged.
- the waste heat transfer path may also include other components such as the liquid supplier 3000.
- the shorter the waste heat transfer path the higher the waste heat releasing performance can be. Because the waste heat transfer path is long, assuming that all the other conditions such as the structure, material, and the like of the components of the first feedback device and the second feedback device are the same, it means that the time for the waste heat to stay in the feedback device 100 is increased And the fact that the waste heat transfer path is short may mean that the time for the waste heat to stay in the feedback device 100 is reduced. Accordingly, the waste heat releasing performance can be changed according to the waste heat releasing structure.
- the waste heat releasing performance according to the waste heat transfer path will be described in detail.
- 29 is a diagram illustrating a structure of a feedback device according to an embodiment of the present invention.
- FIG. 29 is a cross-sectional view of a feedback device 100 according to the first embodiment.
- the feedback device 100 is stacked in order of a thermoelectric module 1000 and a heat dissipating part 2000,
- the supplying unit 3000 may be disposed inside the heat dissipating unit 2000.
- the lower surface of the thermoelectric module 1000 may be in direct or indirect contact with the user to provide thermal feedback to the user.
- the wearable device is a wristband type wearable device as shown in Fig. 3
- the thermoelectric module 1000 is positioned at a portion contacting the user
- the heat dissipating unit 2000 can be positioned.
- the portion where the waste heat is transferred from the heat dissipating unit 2000 may be the heat transfer unit 2100 (for example, the lower surface and the side surface of the heat dissipating unit 2000) Emitting portion 2200 (for example, the upper surface of the heat-radiating portion 2000).
- a liquid blocking material for example, liquid
- a waterproof film for example, a waterproof film
- thermoelectric module 1000 when the thermoelectric module 1000 performs a heat absorbing operation, cold heat is transmitted to the lower surface of the thermoelectric module 1000, and heat is transmitted to the upper surface of the thermoelectric module 1000, It can be a waste heat that hinders the thermal experience.
- the waste heat may be transferred from the thermoelectric module 1000 to the heat release portion 2200 through the heat transfer portion 2100 and the liquid supply portion 3000, and waste heat may be discharged from the heat emission portion 2200. That is, the waste heat transfer path may be formed by the thermoelectric module 1000, the heat transfer portion 2100, the liquid supplier 3000, and the heat releasing portion 2200.
- the liquid supplier 3000 can supply the liquid contained in the liquid supplier 3000 to the heat discharger 2200, and the liquid supplier 3000 can supply the liquid supplied from the liquid supplier 3000
- the liquid can evaporate due to waste heat.
- the waste heat may be released to the outside of the feedback device 100.
- the heat releasing portion 2200 may have a liquid delivery direction in a specific direction, depending on the material.
- the heat releasing portion 2200 may have liquid transfer directionality in the up-and-down direction and liquid transfer direction in the left-right direction.
- liquid can be transferred from the lower end of the heat releasing portion 2200 to the heat releasing portion 2200.
- the heat radiating portion 2200 having the liquid transfer directionality in the up and down direction may be advantageous for improving the waste heat releasing performance.
- the heat releasing portion 2200 may have evaporation directionality in a specific direction depending on the material.
- the heat releasing portion 2200 may have an upward evaporation directionality or a lateral direction evaporation directionality.
- evaporation of liquid from the upper end of the heat releasing portion 2200 into the air can be performed. Accordingly, in the first embodiment, it is advantageous for the heat releasing portion 2200 to have the upward evaporative directionality to improve the waste heat releasing performance.
- the length of the waste heat transfer path may vary depending on the thickness of the liquid supplier 3000.
- the waste heat transfer path when the thickness of the liquid supplier 3000 is b may be shorter than the waste heat transfer path when the thickness of the liquid supplier 3000 is a.
- the waste heat transfer path is shortened, the time for the waste heat to stay in the liquid supplier 3000 can be shortened, whereby the waste heat release performance of the feedback device 100 can be improved.
- the amount of liquid contained in the liquid supplier 3000 may be reduced.
- the liquid dispenser 3000 is depleted, the liquid must be replenished.
- the depletion time of the liquid may also be shortened. That is, depending on the thickness of the liquid supplier 3000, the waste heat releasing performance of the feedback device 1000 and the liquid retaining performance of the liquid supplier 3000 may be in a trade off relationship.
- FIG. 30 is a diagram illustrating a structure of a feedback device 100 according to another embodiment of the present invention.
- Fig. 30 shows a cross-sectional view of a feedback device 100 according to the second embodiment.
- the feedback device 100 is laminated in the order of the thermoelectric module 1000 and the heat dissipating unit 2000.
- the liquid supplier 3000-a and 3000- And may be disposed on both sides of the unit 2000.
- a support portion 5000 is disposed on the side surface of the thermoelectric module 1000 and the liquid supplier 3000-a and 3000-b can be disposed on the upper portion of the support portion 5000.
- the support unit 5000 may be configured to support at least one of the thermoelectric module 1000, the heat dissipation unit 2000, and the liquid supplies 3000-a and 3000-b.
- the supporter 5000 can block the heat generated in the thermoelectric module 1000 without transmitting it to the user. Also, the supporter 5000 can block the liquid discharged from the liquid supplier 3000-a and 3000-b without delivering it to the user. Further, the support portion 5000 may be arranged to be in contact with the user.
- the heat dissipating unit 2000 includes a heat transfer unit 2100 and a heat dissipation unit 2200.
- the heat dissipation unit 2000 is not limited to the heat dissipation unit 2100
- the heat releasing portion 2200 may be formed in a separated shape.
- the height of the liquid supplier 3000-a and 3000-b is larger than the height of the heat dissipating unit 2000 in FIG. 30, the present invention is not limited thereto. May be less than or equal to the height of the heat dissipating unit 2000.
- the liquid supplier 3000-a, 3000-b does not contact the upper portion of the thermoelectric module 1000, so that waste heat may not be transferred from the thermoelectric module 1000. Accordingly, the waste heat may be directly transferred from the thermoelectric module 1000 to the heat dissipation unit 2000, and the waste heat transfer path may be formed by the thermoelectric module 1000 and the heat dissipation unit 2000. Accordingly, the heat transfer path can be shortened as compared with the case where the liquid supplier (3000-a, 3000-b) is included in the waste heat transfer path, thereby improving the waste heat discharge performance.
- the heat dissipating unit 2000 since the liquid supplier 3000-a, 3000-b is disposed on the side surface of the heat dissipating unit 2000, the heat dissipating unit 2000 includes the liquid supplying unit 3000- The liquid can be supplied from the side. At this time, the heat dissipating unit 2000 needs to discharge waste heat over the entire area as the waste heat is received from the thermoelectric module 1000 over the entire area. Accordingly, when the heat dissipating unit 2000 has the liquid transfer directionality in the lateral direction, the liquid can be transferred to the central portion of the heat dissipating unit. Therefore, in the second embodiment, the heat dissipating unit 2000 has the liquid transfer directionality in the left- It can be advantageous for improving waste heat emission performance.
- the liquid supplier 3000-a and 3000-b are disposed on the side surface of the heat dissipating unit 2000, the liquid supplier 3000- More liquid can be delivered.
- the waste heat emission amount in the outer region containing more liquid may be larger than the waste heat emission amount in the central region.
- the heat dissipating unit 2000 has a liquid transfer direction in a high lateral direction or liquid is delivered from the liquid supplier 3000-a and 3000-b to the heat dissipating unit 2000 for a long time
- the amount of waste heat in the outer region and the amount of waste heat in the central region may be similar to each other.
- 31 is a diagram illustrating a structure of a feedback device 100 according to another embodiment of the present invention.
- FIG. 31 shows a cross-sectional view of a feedback device 100 according to the third embodiment.
- the feedback device 100 is stacked in the order of the thermoelectric module 1000 and the heat dissipating unit 2000, the supporter 5000 is disposed on the side of the thermoelectric module 1000, May be disposed on the upper end of the support part (5000) and the side surface of the heat dissipating part (2000).
- the liquid supplier 3000 may be disposed only on one side of the heat dissipating unit 2000 in the third embodiment.
- the liquid supplier 3000 may not receive the waste heat from the thermoelectric module 1000 as it does not contact the top of the thermoelectric module 1000. Accordingly, the waste heat transfer path can be formed by the thermoelectric module 1000 and the heat dissipation unit 2000, and the heat transfer path is shortened compared with the case where the liquid supply unit 3000 is included in the waste heat transfer path, Performance can be improved.
- the liquid supplier 3000 since the liquid supplier 3000 is disposed on one side of the heat dissipating unit 2000, the liquid can be transferred from one side to the other side of the heat dissipating unit 2000.
- the heat dissipating unit 2000 needs to discharge waste heat over the entire area as the waste heat is received from the thermoelectric module 1000 over the entire area. Therefore, in order to effectively discharge the waste heat from one side other than the one side contacting with the liquid supplier 3000, the heat dissipating unit 2000 may have liquid transfer directionality in the left and right direction.
- the liquid supplier 3000 is disposed on one side of the heat dissipating unit 2000, more liquid can be delivered to the one side than the other side of the heat dissipating unit 2000.
- the amount of waste heat emission in one aspect may be larger than the amount of waste heat emission in the other aspect.
- the heat dissipating unit 2000 has high liquid transfer directionality in the left and right direction or the liquid is delivered from the liquid supplier 3000 to the heat dissipating unit 2000 for a long time, When the liquid content on the side is similar, the amount of waste heat emission on the one side may be similar to the amount of waste heat emission on the other side.
- 32 is a diagram illustrating a structure of a feedback device 100 according to another embodiment of the present invention.
- Fig. 32 shows a cross-sectional view of a feedback device 100 according to the fourth embodiment.
- the feedback device 100 is disposed in the order of the thermoelectric module 1000, the liquid supplier 3000-a, 3000-b, and the heat dissipater 2000, , 3000-b) may be disposed on some side and part of the bottom surface of the heat dissipation unit 2000.
- the waste heat transfer path can be composed of two paths.
- the first waste heat transfer path is formed by the thermoelectric module 1000, the liquid supplier 3000-a, 3000-b, and the heat dissipating unit 2000, The heat dissipating unit 2000 may be formed.
- the second waste heat transfer path a part of the waste heat may be transferred to the heat dissipating unit 2000 through the liquid supplier 3000-a, 3000-b.
- the length of the second waste heat transfer path may vary depending on the thickness of the liquid supplier 3000-a and 3000-b.
- the heat dissipating unit 2000 can be increased, and thus the waste heat releasing performance can be improved. Also, the heat dissipating unit 2000 can receive the liquid from the liquid supplier 3000-a and 3000-b, not only on the side surface but also on the bottom surface. Therefore, when the heat dissipating unit 2000 has the liquid transfer directionality in the lateral direction and the liquid transfer direction in the vertical direction, the waste heat releasing performance can be further improved.
- 33 is a diagram illustrating a structure of a feedback device 100 according to another embodiment of the present invention.
- Fig. 33 shows a cross-sectional view of a feedback device 100 according to the fifth embodiment.
- the feedback device 100 is stacked in the order of the thermoelectric module 1000 and the heat dissipating unit 2000 as in the first embodiment of FIG. 29, and the liquid supplier 3000 may be disposed inside the heat dissipating unit 2000 .
- the protection unit 2500 may be disposed on the heat dissipation unit 2000.
- the protection unit 2500 may be configured to protect the feedback device 100 from the outside.
- the protective portion 2500 is disposed to surround the heat dissipating portion 2000, and a predetermined space may be provided between the protective portion 2500 and the heat dissipating portion 2000.
- the protective portion 2500 may be formed of various materials.
- the protective portion 2500 may be made of a material that does not absorb liquid, such as net-type plastic or silicone.
- the heat dissipating unit 2000 may be wetted by the liquid provided in the liquid supplier 2000, and when the user's hand touches the heat dissipating unit 2000 in such a situation, .
- the protection unit 2500 is disposed on the feedback device 100, the user's hand may not touch the heat dissipation unit 2000 by the protection unit 2500. As a result, the convenience of the user can be improved.
- the waste heat releasing path in the fifth embodiment is similar to that of the first embodiment in that the thermoelectric module 1000, the heat transfer portion 2100, The heat dissipation unit 3000 and the heat dissipation unit 2200.
- the waste heat dissipation performance in the first embodiment can be maintained.
- the protection unit 2500 according to the fifth embodiment is similar to the protection unit 2500 according to the second to fourth embodiments described above. However, It can be applied to all of the embodiments.
- 34 is a diagram illustrating the structure of a feedback device 100 according to another embodiment of the present invention.
- FIG. 33 shows a cross-sectional view of a feedback device 100 according to a sixth embodiment.
- the feedback device 100 is stacked in the order of the thermoelectric module 1000 and the heat dissipating unit 2000 as in the first embodiment of FIG. 29, and the liquid supplier 3000 may be disposed inside the heat dissipating unit 2000 .
- the second liquid supply unit 3500 may be included in the heat dissipation unit 2000.
- the second liquid supplier 3500 may be provided to supply the liquid to the liquid supplier 3000 as well as the heat dissipating unit 2000.
- the liquid supply unit 3000 may be made of a material having improved liquid absorption ability.
- the second liquid supply unit 3500 may be composed of a high liquid absorbing material such as a sponge, and may be composed of a super absorbent resin.
- both the second liquid supply unit 3500 and the liquid supply unit 3000 are constructed of a super absorbent resin
- the liquid absorbent capacity of the super absorbent resin constituting the second liquid supply unit 3500 is adjusted by the liquid supply unit Absorbing resin constituting the liquid-absorbent resin layer (3).
- the liquid supplier 3000 can receive liquid from the outside and absorb the supplied liquid. Depending on the liquid absorbing performance of the liquid supplier 3000, it may take a long time for the liquid supplier 3000 to absorb the supplied liquid. In this case, the liquid supplier 3000 may have to continuously receive the liquid from the outside until it holds a predetermined amount of liquid. In some embodiments, while the liquid supplier 3000 is being supplied with liquid from the outside The feedback device 100 may not be used.
- the second liquid supply unit 3500 can hold the predetermined amount of liquid in a time shorter than the time until the liquid supplier 3000 holds a predetermined amount of liquid. Accordingly, the second liquid supplier 3500 can provide the predetermined amount of liquid to the liquid supplier 3000. That is, even if no liquid is supplied from the outside, the liquid supplier 3000 can absorb the liquid from the second liquid supplier 3500.
- the amount of liquid retained by the feedback device 100 can be increased overall. Accordingly, the feedback device 100 can release the waste heat to the outside for a longer time than when the second liquid supplier 3500 is not included.
- the present invention is not limited thereto, and the second liquid supplier 3500 in the sixth embodiment is not limited to the above- It can be applied to all of the second to fifth embodiments.
- the liquid supplier 3000 may provide a liquid to the heat dissipating unit 2000, and the rate at which the liquid to be supplied to the heat dissipating unit 2000 is supplied to the feedback device 100 It can directly affect the waste heat discharge performance.
- the rate at which the liquid supply unit 3000 provides the liquid to the heat dissipation unit 2000 at what speed can be determined according to the characteristics of the liquid supply unit.
- the waste heat releasing performance of the feedback device 100 according to the characteristics of the liquid supplier 3000 will be described in detail.
- 35 is a view for explaining waste heat releasing performance according to the liquid content of the liquid supplier 3000 according to the embodiment of the present invention.
- the liquid retaining portion 3100 of the liquid supplier 3000 may contain a liquid retaining material and the amount of liquid that the liquid retainer 3000 may contain may vary depending on the mass of the liquid retaining material.
- the total amount of the liquid contained in the liquid providing portion 3000 may vary depending on the mass of the superabsorbent resin.
- the amount of the liquid contained in the liquid supplier 3000 may also vary depending on the amount of liquid.
- the x-axis represents time (minute), and the y-axis represents voltage (mV) generated in feedback device 100.
- trend 3501 represents the power generation efficiency of the feedback device 100 when the polymer resin is 0.1 g
- trend 3502 represents the power generation efficiency of the feedback device 100 when the polymer resin is 0.5 g
- the tendency 3503 represents the power generation efficiency of the feedback device 100 when the polymer resin is 1.0 g.
- the amount of power generation at the tendency 3503 is higher than the tendency 3501.
- 36 is a view for explaining the liquid absorption performance and the liquid holding performance according to the cross link density of the liquid supply portion according to the embodiment of the present invention.
- a shows a liquid supplier 3000-36a including a superabsorbent resin having a low density cross link
- (b) shows a liquid containing a superabsorbent resin having a high density cross link
- the liquid absorbing performance and the liquid retaining performance can be determined.
- the degree of cross linking between the polymer chains of the superabsorbent resin may be low because of having a low density cross link.
- the liquid absorbing performance of the liquid supplier (3000-36a) can be improved.
- the degree of cross linking between the polymer chains of the super absorbent resin can be high because of having the high density cross link.
- the polymer chain is difficult to hold a large amount of liquid, and the liquid absorbing performance of the liquid supplier (3000-36b) is lowered.
- the liquid contained in the polymer chains may not be easily released even when pressure is applied to the polymer chain.
- the liquid retaining performance of the liquid supplier (3000-36b) can be improved.
- the liquid absorbing performance and liquid retaining performance of the liquid supplier 3000 may have a trade-off relationship.
- FIG. 37 is a view for explaining waste heat releasing performance according to the liquid absorbing performance and the liquid retaining performance according to the embodiment of the present invention.
- (a) is a graph showing power generation efficiencies different from cross link densities of a superabsorbent resin
- (b) is a table showing values of the graph of (a).
- the x axis represents time (minutes), represents the power density ( ⁇ W / cm 2) represents the power generation amount per unit area that is developed in the y-axis feedback device 100.
- line 3701 represents the power density of the power output from the feedback device 100 when the liquid supplier 3000 includes a superabsorbent resin having a high density of cross links
- 3702 represents the power density of the power output from the feedback device 100 when the liquid supplier 3000 includes a superabsorbent resin having a low density cross link.
- the power generation efficiency of the feedback device 100 when the cross link is low can be higher than the power generation efficiency of the feedback device 100 when the cross link is high density as shown in the graph of FIG.
- the density of the cross link of the liquid supplier 3000 can be divided into two regions.
- the first region 3000-38a1 of the liquid supplier 3000-38a is made of a polymer resin having a low density cross link
- the second region 3000-38a2 is made of a high density cross link And the like.
- the lower region of the liquid supplier 3000-38a has a high liquid-absorbing performance and a low liquid-retaining performance
- the upper region can have a low liquid-absorbing performance and a high liquid-retaining performance.
- the first regions 3000-38b1 of the liquid supplier 3000-38b are made of a polymer resin having a low-density cross link, and the second regions 3000-38b2 are composed of a high-
- the lower region of the liquid supplier 3000-38b has low liquid absorption performance and high liquid holding performance, and the upper region has high liquid absorption performance and low liquid holding performance Lt; / RTI >
- the second region 3000-38b2 of the liquid supplier 3000-38b can perform the function of the second liquid supplier 3500 described with reference to FIG. This may be because the liquid absorption performance of the second region 3000-38b2 is higher than that of the first region 3000-38b1. Accordingly, the first region 3800-38b1 can be supplied with the liquid from the second region 3000-38b2 even when the liquid is not supplied from the outside, The available time of the feedback device 100 can be increased.
- the heat dissipating portion 2000 when the heat dissipating portion 2000 has a high liquid absorbing performance and a low liquid retaining performance such as the regions 3000-38a1 and 3000-38b2, the heat dissipating portion 2000 contacts the regions 3000-38a1 and 3000-38b2 It may be advantageous to transfer the liquid to the heat dissipating unit 2000.
- the liquids have low liquid-absorbing performance and high liquid-retaining performance, such as the regions 3000-38a2 and 3000-38b1, the liquid may not easily be discharged to the outside of the liquid supplier 3000-38a, 3000-38b . Accordingly, when the regions 3000-38a2 and 3000-38b1 are disposed in areas that are easily accessible to the user, even if the user's body touches the areas 3000-38a2 and 3000-38b1 as the liquid is not delivered to the user The user may feel uncomfortable.
- the region according to the density of the cross link is divided into the upper and lower portions.
- the region is not limited thereto, and the region may be divided into right and left regions, or may be divided into three or more regions.
- Fig. 39 is a view for explaining the liquid absorption performance and the liquid holding performance according to the cross link density of the liquid supply portion according to another embodiment of the present invention.
- the density of the cross link of the liquid supplier 3000-39a, 3000-39b can be divided into two regions.
- the second region 3000-39a2 of the liquid supplier 3000-39a may surround the first region 3000-39a1.
- the first region 3000-39a1 may be made of a polymer resin having a low density cross link
- the second region 3000-39a2 may be made of a polymer resin having a high density cross link .
- the inner region of the liquid supplier 3000-39a has a high liquid absorption performance and a low liquid holding performance
- the outer region can have a low liquid absorption performance and a high liquid holding performance.
- the liquid supplier (3000-39a) can continuously hold the liquid because it holds a large amount of liquid in the inner region and does not easily emit the liquid in the outer region.
- the liquid supplier 3000-39a can provide the heat dissipating unit 2000 with a sufficient amount of liquid to discharge the waste heat. Therefore, in this case, the waste heat release effect of the feedback device 100 can be improved, and the use time of the feedback device 100 can be increased.
- the second area 3000-39b2 can now surround one area 3000-39b1.
- the first regions 3000-39b1 may be made of a polymer resin having a high density cross link
- the second regions 3000-39b2 are made of a low molecular resin having a high density cross link
- the inner region of the liquid supplier 3000-39b has low liquid absorption performance and high liquid holding performance
- the outer region can have high liquid absorption performance and low liquid holding performance.
- FIG 40 is a view for explaining liquid transfer according to the liquid permeability of the liquid supply portion according to the embodiment of the present invention.
- liquid permeability to liquid may vary depending on the configuration of the liquid supplier 3000.
- the liquid-permeability can be defined as a physical property indicating the degree of transfer of liquid between the polymeric resins when the polymeric resin swells and absorbs the liquid.
- the volume of the polymeric resin of the liquid supplier 3000 can be relatively uniformly arranged. As the volume of the polymeric resin is uniform, the void space between the polymeric resins may be reduced, thereby making it difficult for the liquid to pass between the polymeric resins, and the liquid-permeability may be reduced.
- the polymeric resin of the liquid supplier 3000 can be arranged unevenly. For example, a small volume of polymeric resin may be placed between large volumes of polymeric resins. In this case, even when the polymeric resin is swollen, voids may be formed between the polymeric resins, and the liquid space may easily pass between the polymeric resins due to the empty space, thereby increasing the liquid permeability.
- the liquid permeability of the liquid supplier 3000 can be determined depending on the arrangement of the polymeric resin, and in the case of (b) where liquid permeability is higher than that in case of (a) . Further, in the case of (b) having a high liquid permeability, more liquid can be easily transferred to the heat dissipating unit 2000, and thus the waste heat discharging performance can be improved.
- FIG. 41 is a view for explaining waste heat discharge performance according to the function of the heat transfer unit according to the embodiment of the present invention.
- the heat dissipating unit 200 may include a heat transfer unit 2100, and the heat transfer unit 2100 may be formed of various materials.
- (a) to (c) show the temperature change at the contact surface 1600 when the feedback device 1000 performs an endothermic operation when the heat transfer portion 2100 is made of different materials.
- the graphs (a) to (c) show the relationship between the heat transfer portion 2100 and the thermoelectric module 1000 when the heat transfer portion 2100 is disposed at the lower end of the heat dissipating portion 2000, ,
- the x-axis of each graph represents time
- the y-axis represents temperature.
- lines 4101, 4111 and 4121 indicate the ambient temperature
- lines 4102, 4112 and 4122 indicate the temperature of the contact surface 1600.
- the heat transfer portion 2100 is made of a material having a heat collection function
- (b) is a structure in which the heat transfer portion 2100 has a function of absorbing liquid (C)
- the heat transfer portion 2100 may be made of a material having a good waterproof function.
- the temperature difference between the lines 4101, 4111 and 4121 and the lines 4102, 4112 and 4122 in the graphs of (a) to (c) is not large, 4102, 4112, 4122 may have similar tendencies.
- the function and / or the material of the heat transfer portion 2100 in the case where the heat transfer portion 2100 is disposed at the lower end of the heat dissipating portion 2000 is different from that of the feedback device 100 It can be confirmed that it is somewhat less relevant. This can be attributed to the difference in thermal conductivity between general fiber materials, such as the materials in the graphs (a) to (c).
- the heat transfer unit 2100 is made of a material having higher thermal conductivity than a general material, the waste heat from the thermoelectric module 1000 is more easily transmitted to the heat releasing unit 2200, The waste heat discharge performance can be improved.
- FIG. 42 and FIG. 43 are views for explaining the waste heat discharging performance according to the function of the heat discharging unit according to the embodiment of the present invention.
- the heat dissipation unit 2000 may include a heat dissipation unit 2200, and the heat dissipation unit 2200 may be composed of various materials.
- the graphs of FIGS. 42A and 42B and the graphs of FIGS. 43A to 43D show how the feedback device 1000 when the heat releasing portion 2200 is made of different materials performs an endothermic operation And the temperature change at the contact surface 1600 when performing the operation.
- the graph of FIG. 42 and FIG. 43 shows the temperature change at the contact surface 1600 when the heat releasing portion 2200 is disposed at the upper end of the heat releasing portion 2000 and contacts the thermoelectric module 1000,
- the x-axis of each graph represents time
- the y-axis represents temperature.
- lines 4201, 4211, 4301, 4311, 4321 and 4331 indicate the ambient temperature and lines 4202, 4212, 4302, 4312, 4322 and 4332 indicate the contact surface 1600, Lt; / RTI >
- FIG. 42 shows a structure in which the heat emitting portion 2200 is made of a material having a ventilation function, and (b) in FIG. 42, the heat emitting portion 2200 is made of a material having a waterproof function.
- the line 4202 maintains the temperature within a certain range after the temperature is initially lowered, whereas in the graph of (b), the line 4212 shows the temperature after the temperature is initially lowered It can rise continuously. That is, it can be confirmed that the graph (a) is superior to the graph (b) in terms of the waste heat releasing performance.
- the reason why the graphs (a) and (b) are different from each other is that the heat releasing portion 2200 has different functions. Specifically, in the heat releasing part 2200, the waste heat can be released in a latent heat form through the liquid delivered from the liquid supplier 3000. At this time, in case of (a), the liquid is easily evaporated due to the ventilation function of the heat releasing part 2200, so that waste heat is actively emitted. On the other hand, in the case of (b), due to the water-proofing function of the heat releasing part 2200, the liquid is hardly evaporated, and therefore the discharge of waste heat may become difficult.
- thermoelectric module 1000 is a relatively short period of time
- thermoelectric module 1000 is a relatively short period of time
- (a) to (d) are made of a material having a hygroscopic function and a vent function
- the hygroscopic function and vent function of (b) and (d) may be composed of materials higher than those of (a) and (c).
- the heat releasing portion 2200 of (a) to (d) may be made of any one material such as ethylene vinyl alcohol fiber, ethylene vinyl alcohol (EVOH) fiber, special modified cross- Lt; / RTI >
- the lines 4302 and 4312 can be maintained at a temperature within a certain range after the temperature is initially lowered. Accordingly, it can be confirmed that the difference between the hygroscopic function and the ventilating function of the heat releasing part 2200 does not affect the waste heat releasing performance in a relatively short time.
- the line 4322 continuously increases in temperature after the temperature is initially lowered.
- the line 4332 indicates that even after the temperature is initially lowered, Lt; / RTI > That is, when the heat absorbing operation is performed for a long time in the thermoelectric module 1000, the better the moisture absorbing function and the ventilating function of the heat releasing portion 2200, the more the waste heat releasing performance can be improved. Accordingly, as the heat absorbing operation of the thermoelectric module 1000 is continued for a long time, the moisture absorbing function and the ventilating function of the heat releasing portion 2200 may affect the waste heat releasing performance of the feedback device 100.
- thermoelectric module 1000 when the feedback device 100 operates as a cooling device, and the thermoelectric module 1000 performs an endothermic operation, a cool feeling is provided to the user, while waste heat is generated in the feedback device 100 do.
- the waste heat may be discharged to the outside through the heat dissipation unit 2000 of the feedback device 100.
- the cold feeling transmitted to the user may vary depending on the configuration of the feedback device 100.
- the waste heat absorbing material when the waste heat absorbing material is disposed in the feedback device 100 without releasing waste heat for a certain period of time, the material causes a larger amount of waste heat to be fed to the feedback device 100 Even if accumulated, the surface temperature of the feedback device 100 may not be increased, which may provide a cool feeling to the user.
- Figure 44 is a block diagram of a feedback device 100 according to another embodiment of the present invention.
- the feedback device 100 may include a thermoelectric module 1000, a heat dissipation unit 2000, and a liquid supplier 3000 as described above.
- the feedback device 100 may further include a thermal buffer material 4000.
- the thermal buffer material 4000 may represent a material that absorbs and retains the heat of the environment outside the thermal buffer material 4000.
- the thermal buffer material 4000 absorbs and retains the heat of the particular environment, the degree to which the waste heat hinders the user's heat transfer experience is reduced during the time during which additional waste heat is absorbed into the thermal buffer material 4000 , The amount of cold heat transmitted to the user can be increased.
- the thermal buffer material 4000 may be provided in various shapes.
- the thermal buffer material 4000 may be provided in an independent material form.
- the thermal buffer material 4000 may be disposed in a plurality of independent material shapes in a portion of the heat dissipating portion 2000.
- the thermal buffer material 4000 may be provided in a layered form.
- the thermal buffer material 4000 may be arranged in a layer shape on at least one surface of the thermoelectric module 1000, the heat dissipating unit 2000, or the liquid supplier 3000.
- the thermal buffer material 4000 may be provided in any shape that may be included in the feedback device 100, although it is not an independent material shape or layer shape. Also, in one embodiment, the thermal buffer material 4000 may be separate from the feedback device 100. [ In one example, the thermal buffer material 4000 may be separated from the feedback device 100 and replaced with another thermal buffer material. In another example, when the thermal buffer material 4000 absorbs heat, the thermal buffer material 4000 may be separated at the feedback device 100 such that the heat is emitted outside of the feedback device 100.
- 45 is a view for explaining the properties of a thermal buffer material according to an embodiment of the present invention.
- the graph may show a temperature change of the thermal buffer material 4000 with thermal energy accumulation.
- the amount of heat applied to the thermal buffer material 4000 can be increased from section (a) to section (c).
- the thermal buffer material 4000 can accumulate the heat of the small crystal. At this time, the thermal buffer material 4000 may not emit the heat to the outside during the period of the small intestine accumulating the heat of the certain area.
- period (a) heat is applied to the thermal buffer material 4000, and the temperature of the thermal buffer material 4000 may rise during the period (a). Thereafter, during period (b) the thermal buffer material 4000 will absorb heat, while the temperature of the thermal buffer material may not increase. This is because the thermal buffer material 4000 stores the heat applied in the interval b. In an embodiment of the present invention, as heat is applied, a phase change in the thermal buffer material 4000 can occur.
- the thermal buffer material (4000) utilizes the absorbed heat for the phase change, so that in section (b), solid and liquid, liquid and gas, or solid and gas coexist
- the thermal buffer material 4000 may change from solid to liquid, from liquid to gas or from solid to liquid.
- the thermal buffer material 4000 can be a phase change material (PCM).
- the heat applied to the thermal buffer material 4000 may exceed the amount of heat that the thermal buffer material 4000 can accommodate. In this case, by the applied heat, the temperature of the thermal buffer material 4000 can be raised.
- the feedback device 100 may use the thermal buffer material 4000 to control the internal temperature of the feedback device. Specifically, when the waste heat is generated in the feedback device as the thermoelectric operation is performed, the feedback device 100 can discharge the waste heat to the outside of the feedback device. When the waste heat generated from the waste heat is larger than the waste heat, The temperature inside the feedback device can be raised to the first temperature range. At this time, the feedback device 100 may use the thermal buffer material 400 to maintain the temperature inside the feedback device within the first temperature range for a predetermined time such that the temperature rise inside the feedback device is delayed. That is, the feedback device 100 may delay the temperature rise due to the waste heat at the contact surface where the user contacts the feedback device.
- the thermal buffer material 4000 can absorb waste heat and control the temperature of the surface of the thermal buffer material 4000 to remain in the second temperature range for a predetermined time.
- the maximum temperature in the second temperature range may be lower than the maximum temperature in the first temperature range. That is, the surface temperature of the thermal buffer material 4000 may be lower than the temperature inside the feedback device 100.
- the maximum temperature in the second temperature range may be greater than or equal to the highest temperature in the first temperature range, It may mean more than the temperature inside the device 100.
- the thermal buffer material 4000 may include a phase change material, so that the thermal buffer material 4000 is heated while the temperature of the surface of the thermal buffer material 4000 is maintained in the second temperature range. A phase transition may occur in the inside of the semiconductor device.
- the thermal buffer material 4000 when the thermal buffer material 4000 includes a phase change material, the thermal buffer material 4000 may retain more heat due to the phase transition.
- the phase transition material will be described in detail.
- Phase transition materials are materials with high heat of fusion and can be stored or released in large quantities by melting or solidifying at specific temperatures.
- the phase transition material may store or release heat through chemical bonding.
- the phase change material is a solid-to-liquid phase change material
- the phase change material when the phase change material is solid, when the heat is applied, the temperature of the phase change material increases and the temperature of the phase change material reaches the melting point or transition temperature , The phase transition material continues to absorb heat, while the phase transition material temperature does not increase. At this time, the phase transition material is phase transition from solid to liquid. Thereafter, when no heat is applied to the phase-change material, the phase-change material releases the accumulated heat to the outside, so that the phase of the phase-change material can be returned from the liquid to the solid.
- the phase transition material increases in temperature from the initial temperature to the transition temperature, but after the transition temperature is reached, the temperature is not increased until the phase transition is completed.
- the transition temperature of the phase change material may be included within the temperature change period within the feedback device 100 have. If the transition temperature of the phase change material is not included in the temperature variation period of the feedback device 100, phase transition is not generated in the phase change material even if waste heat accumulates in the feedback device 100, The phase transition material can not function as the thermal buffer material 4000.
- the transition temperature of the phase transition material can be between 5 ° C and 60 ° C or between 20 ° C and 40 ° C.
- the phase change material used in the thermal buffer material 4000 may be composed of various materials.
- the phase change material may include an inorganic salt such as hydrated inorganic salt including hydrated calcium chloride, lithium nitrogen oxide, magnesium oxide, DMP (dimethylpropanediol), HMP (hexamethylpropanediol), xylitol, erythritol, Alcohol, a polyethylene terephthalate (PEG) -PEG (polyethylene glycol) copolymer, PEG, polytetramethyl glycol (PTMG), paraffin.
- an inorganic salt such as hydrated inorganic salt including hydrated calcium chloride, lithium nitrogen oxide, magnesium oxide, DMP (dimethylpropanediol), HMP (hexamethylpropanediol), xylitol, erythritol, Alcohol, a polyethylene terephthalate (PEG) -PEG (polyethylene glycol) copolymer, PEG, poly
- the phase change material used in the thermal buffer material 4000 may be implemented in various forms.
- the phase change material may be embedded in a microcapsule, filled in a fabric, or coated.
- 46 is a diagram illustrating a structure of a feedback device to which a thermal buffer material according to an embodiment of the present invention is applied.
- the feedback device 100 is stacked in the order of the thermoelectric module 1000 and the heat dissipating unit 2000, and the liquid supplier 3000 includes a heat dissipating unit 2000 ).
- the heat dissipation unit 2000 may include a heat transfer unit 2100 and a heat dissipation unit 2200.
- the waste heat transfer path may be formed by the thermoelectric module 1000, the heat transfer part 2100, the liquid supplier 3000, and the heat releasing part 2200.
- the thermal buffer material 4000 may be composed of an independent material and disposed in the heat releasing portion 2200.
- the thermal buffer material 4000 may comprise xylitol and / or erythritol in the phase change material.
- xylitol and erythritol react with moisture with sugar alcohol to cause an endothermic reaction, thereby depriving the surrounding heat, and thus, may be a component that makes cold sensation feel.
- the thermal buffer material 4000 when a thermal buffer material 4000 composed of xylitol and / or erythritol is disposed in the heat releasing portion 2200, the thermal buffer material 4000 reacts with the liquid delivered from the liquid providing portion 3000 Endothermic reaction and can absorb the waste heat in the vicinity of the thermal buffer material 4000.
- the waste heat in the feedback device 100 is reduced by the thermal buffer material 4000 for a predetermined time, the cooling transfer performance of the feedback device 100 can be improved.
- the thermal buffer material 4000 can absorb heat from the user. Accordingly, the user can feel a stronger sense of coolness due to the thermal buffer material 4000.
- FIG. 47 is a view showing a structure of a feedback device to which a thermal buffer material according to another embodiment of the present invention is applied.
- the feedback device 100 is stacked in the order of the thermoelectric module 1000 and the heat dissipating unit 2000, and the liquid supplier 3000 may be disposed inside the heat dissipating unit 2000.
- the thermal buffer material 4000 may be disposed between the heat dissipation unit 2000 and the thermoelectric module 1000.
- the thermal buffer material 4000 may be implemented in the form of a layer.
- the heat dissipation unit 2000 may include a heat transfer unit 2100 and a heat dissipation unit 2200.
- the waste heat transfer path may be formed by the thermoelectric module 1000, the thermal buffer material 4000, the heat transfer portion 2100, the liquid supplier 3000, and the heat releasing portion 2200.
- the thermal buffer material 4000 is disposed between the thermoelectric module 1000 and the heat transfer portion 2100, the amount of waste heat accumulated within the feedback device 100 for a predetermined time is reduced And the transfer of waste heat from the thermoelectric module 1000 to the heat transfer part 2100 can be delayed.
- waste heat may be generated in the thermoelectric module 1000.
- the temperature of the thermal buffer material 4000 is raised to the transition temperature by the waste heat, but the thermal buffer material 4000 is heated until the phase transition of the thermal buffer material 4000 is completed The temperature of the buffer material 4000 can be maintained at the transition temperature.
- waste heat having a temperature higher than the transition temperature may not be transferred to the heat transfer portion 2100.
- waste heat having a temperature higher than the transition temperature is additionally accumulated inside the feedback device 100, and the waste heat can be transferred to the heat transfer part 2100 .
- the thermal buffer material 4000 is maintained at the transition temperature, the amount of waste heat inside the feedback device 100 is reduced compared to the case where the thermal buffer material 4000 is not included, As the influence on the thermal experience of the user is reduced, the cool feeling providing performance of the feedback device 100 can be improved.
- Figure 48 is a diagram illustrating the structure of a feedback device to which a thermal buffer material according to another embodiment of the present invention is applied.
- the feedback device 100 is stacked in the order of the thermoelectric module 1000 and the heat dissipating unit 2000, and the liquid supplier 3000 may be disposed inside the heat dissipating unit 2000.
- the thermal buffer material 4000 may be disposed under the thermoelectric module 1000.
- the thermal buffer material 4000 may be implemented in the form of a layer.
- the heat dissipation unit 2000 may include a heat transfer unit 2100 and a heat dissipation unit 2200.
- the waste heat transfer path may be formed by the thermoelectric module 1000, the heat transfer part 2100, the liquid supplier 3000, and the heat releasing part 2200.
- the transition temperature of the thermal buffer material 4000 may be higher than the cold heat generated in the thermoelectric module 1000. Accordingly, the phase change of the thermal buffer material 4000 is not performed by the cold heat, and the thermal buffer material 4000 may not affect the cold / heat transfer to the user.
- thermoelectric module 1000 continuously performs the heat absorption operation, cold heat is transmitted to the user, while the heat can be accumulated in the feedback device 1000. If the amount of waste heat generated is larger than the amount of waste heat released, the waste heat may be accumulated in other places than the waste heat transfer path. As a result, not only cold but also waste heat can be transmitted to the user.
- the thermal buffer material 4000 is disposed at the bottom of the thermoelectric module 1000, the thermal buffer material 4000 can absorb and store the accumulated waste heat. Then, the thermal buffer material 4000 can maintain a constant temperature after reaching the transition temperature. Thus, by blocking the waste heat that the thermal buffer material 4000 is delivered to the user, the cold feel of the feedback device 100 can be improved.
- FIG. 49 is a view showing a structure of a feedback device to which a thermal buffer material according to another embodiment of the present invention is applied.
- the feedback device 100 is stacked in the order of the thermoelectric module 1000 and the heat dissipating unit 2000, and the liquid supplier 3000 may be disposed inside the heat dissipating unit 2000.
- the thermal buffer material 4000 may be disposed at the lower end of the liquid supplier 3000 inside the heat dissipating unit 2000.
- the thermal buffer material 4000 may be implemented in the form of a layer.
- the heat dissipation unit 2000 may include a heat transfer unit 2100 and a heat dissipation unit 2200.
- the waste heat transfer path may be formed by the thermoelectric module 1000, the heat transfer portion 2100, the thermal buffer material 4000, the liquid supplier 3000, and the heat releasing portion 2200.
- the thermal buffer material 1000 is disposed at the lower end of the liquid supplier 3000, the amount of waste heat accumulated in the feedback device 100 for a predetermined time is reduced, The transfer of waste heat from the liquid supply unit 2100 to the liquid supply unit 3000 may be delayed.
- the temperature of the thermal buffer material 4000 is raised by the waste heat to the transition temperature But the temperature of the thermal buffer material 4000 can be maintained at the transition temperature until the phase transition of the thermal buffer material 4000 is completed.
- the amount of waste heat accumulated in the feedback device 100 decreases as the thermal buffer material 4000 absorbs the waste heat, Waste heat having a temperature higher than the transition temperature may not be delivered to the liquid supplier 3000.
- the cooling performance of the feedback device 100 can be improved as the influence of the waste heat on the user's thermal experience while the temperature of the heat output module 4000 is maintained at the transition temperature is reduced.
- FIG. 50 is a view showing a structure of a feedback device to which a thermal buffer material according to another embodiment of the present invention is applied.
- the feedback device 100 is stacked in the order of the thermoelectric module 1000 and the heat dissipating unit 2000, and the liquid supplier 3000-a and 3000-b are stacked on both sides of the heat dissipating unit 2000 .
- a support portion 5000 is disposed on the side surface of the thermoelectric module 1000 and the liquid supplier 3000-a and 3000-b can be disposed on the upper portion of the support portion 5000.
- the thermal buffer material 4000 may be disposed between the thermal module 1000 and the heat dissipating unit 2000 in the form of a layer. Accordingly, the waste heat transfer path may be formed by the thermoelectric module 1000, the thermal buffer material 4000, and the heat dissipating part 2000. As described in Fig. 30, as the liquid supplier (3000-a, 3000-b) is excluded from the waste heat transfer path, the waste heat transfer path is shortened, and thus the waste heat discharge performance can be improved.
- thermoelectric module 1000 As the thermal buffer material 4000 is disposed between the thermoelectric module 1000 and the heat sink 2000 and the temperature of the thermal buffer material 4000 is not increased in the transition temperature range, The amount of the waste heat accumulated in the feedback device 100 during the time that the temperature is maintained at this transition temperature is reduced and the transfer of waste heat from the thermoelectric module 1000 to the heat dissipating unit 2000 may be delayed. As described above, since the influence of the waste heat on the thermal experience of the user while the temperature of the heat output module 4000 is maintained at the transition temperature is reduced, the cooling providing performance of the feedback device 100 can be improved.
- FIG. 51 is a view for explaining a cooler providing performance improved by the thermal buffer material according to the embodiment of the present invention.
- the graph of FIG. 51 shows the temperature of the column provided to the user in the feedback device 100, wherein the x-axis of the graph represents time and the y-axis represents temperature.
- Line 5101 represents the temperature of the contact surface 1600 when the thermal buffer material 4000 is not included in the feedback device 100 and line 5102 represents the temperature of the thermal buffer material 4000 in the feedback device 100 The temperature of the contact surface 1600 in the case where the contact surface 1600 is included.
- line 5102 represents the lowest temperature below line 5101 and the time at which line 5102 reaches the saturation temperature may be later than the time at which line 5101 reaches saturation temperature. This is because the amount of waste heat accumulated inside the feedback device 100 for a predetermined time by the thermal buffer material 4000 is reduced as described above in the second to fifth embodiments, And the transfer of waste heat to other components is delayed. Thus, as shown in the graph of FIG. 51, when the thermal buffer material 4000 is included in the feedback device 100, the user can be more continuously provided with a lower temperature cold feeling.
- FIG. 52 is a view for explaining a cooler providing performance improved by a thermal buffer material according to another embodiment of the present invention.
- (a) is a graph showing the density of electric power generated over time
- (b) is a graph showing a voltage magnitude of electric power generated according to time.
- the x-axis represents time and the y-axis represents the power density (uW / cm2) representing the amount of power generation per unit area generated in the feedback device 100.
- the x-axis represents time
- the y-axis represents the voltage magnitude (mV) of the electric power generated in the feedback device 100.
- line 5201 represents the power density when the thermal buffer material 4000 is not included in the feedback device 100 and line 5211 represents the thermal buffer material 4000.
- Line 5202 represents the voltage density when not included in the feedback device 100 and line 5202 represents the power density when the thermal buffer material 4000 is included in the feedback device 100 and line 5212 represents the thermal buffer material (4000) is included in the feedback device (100).
- the power when the thermal buffer material 4000 is included in the feedback device 100 is greater than when the thermal buffer material 4000 is not included in the feedback device 100 as shown in the graphs of FIGS. Density or voltage, that is, power generation efficiency may be high.
- Density or voltage that is, power generation efficiency may be high.
- the temperature difference in the thermoelectric module 1000 is increased when the thermal buffer material 4000 is included in the feedback device 100 and that the temperature difference in the thermoelectric module 1000 is higher than that in the feedback device 100, Can be improved, and the improvement of the waste heat discharge performance can mean that the cold transfer performance is also improved.
- the thermal buffer material 4000 is included in the feedback device 100, the cooling transfer performance for the user is improved and the power generation efficiency can also be improved.
- the feedback device 100 may perform an endothermic operation to provide cold feedback to the user. Accordingly, the user can recognize the cold feeling from the feedback device 100.
- the feedback device 100 can control whether or not to provide cold feedback, and can adjust the strength of the cold feedback. Further, as the heat absorbing operation is performed in the feedback device 100, waste heat is accumulated in the feedback device 100, and the cold feedback provided to the user may be affected by the accumulated feedback. Due to these factors, the user may be provided with cold feedback of various strengths at various times, and accordingly, the degree of coolness perceived by the user may vary.
- Figure 53 is a plot of the temperature of the heat provided to the user in feedback device 100 according to an embodiment of the present invention.
- the x-axis represents time
- the y-axis represents temperature
- the line 5301 represents the temperature of the contact surface 1600 of the thermoelectric module 1000 with respect to time.
- the thermoelectric module 1000 performs an endothermic operation, and as the cool heat due to the heat absorption operation is transferred to the contact surface 1600 , The temperature of the contact surface 1600 may drop.
- waste heat may accumulate in the feedback device 100, and the temperature of the contact surface 1600 may be affected by the waste heat, So that the temperature of the predetermined temperature section 5322 can be maintained.
- the heat transfer performance indicative of the performance to which cold heat is transferred may be composed of three indicators.
- An indicator of the first heat transfer performance is the minimum temperature arrival time, which indicates how fast the minimum temperature is reached. In the example of FIG. 53, the minimum temperature reaching time may be the interval 5311.
- An indicator of the second heat transfer performance is the duration, which indicates how long the temperature of the contact surface is maintained. If a large amount of waste heat is accumulated in the feedback device 100, the temperature 1600 of the contact surface can not be maintained at a specific temperature due to accumulated waste heat, and the feedback device 100, which is heated, .
- the duration may be the time at which the temperature of the contact surface 1600 is maintained at the temperature interval 5322. If the temperature of the contact surface 1600 continues for a longer time in the temperature interval 5322, the heat transfer performance of the feedback device 100 may be improved.
- An index of the third heat transfer performance is a continuous temperature that represents the temperature of the contact surface 1600 for the duration. As described above, the temperature of the contact surface 1600 can not maintain the lowest temperature due to waste heat, but since the waste heat is released in the feedback device 100, the temperature of the contact surface 1600 can be maintained at a temperature higher than the minimum temperature And the high temperature can be a sustained temperature. At this time, if the temperature value of the sustain temperature becomes higher, the feedback device 100 that is heated will not normally transmit cold heat to the user. In the example of FIG. 53, the sustain temperature may be the temperature interval 5322. FIG. If the temperature of the temperature section 5322 is lowered, the cooling / heating performance of the feedback device 100 can be improved.
- the degree of cold feeling of the user can be generally improved.
- the fact that the cool / heat transfer performance index is good means that the feedback device 100 is less influenced by the waste heat, so that the user can be provided with cold feedback with little influence of the waste heat, thereby improving the user's cold feeling.
- the minimum temperature of the contact surface 1600 and the contact temperature of the contact surface 1600 when the voltage value applied to the thermoelectric module 1000 is changed or a plurality of voltages having different voltage values are applied, the minimum temperature of the contact surface 1600 and the contact temperature of the contact surface 1600, The temperature section 5322 in which the temperature of the temperature sensor 532 is maintained can be changed. Also, when the application time of the voltage applied to the thermoelectric module 1000 is changed, the minimum temperature of the contact surface 1600 and the temperature interval 5322 where the temperature of the contact surface 1600 is maintained can be changed.
- the cold heat provided to the user changes according to the magnitude of the voltage applied to the thermoelectric module 1000 and the voltage application time, and the minimum temperature arrival time, duration, and sustain temperature, which are indicators of the cooling /
- the degree to which the user perceives cold feeling is also changed by the cold feedback provided by the device 100.
- FIG. 54 is a flowchart illustrating a method for improving a user perception performance using a plurality of voltage impressions according to an embodiment of the present invention.
- the feedback device 100 controls the voltage value of the voltage applied to the thermoelectric module 100 and the voltage You can decide on the time. If the feedback device 100 determines to apply a two-magnitude voltage value at two points in time, the feedback device 100 may apply a first voltage value at a first time (5410). Also, the feedback device 100 may apply a second voltage value at a second time point (5420). And, as steps 5410 and 5420 are performed, the cool feeling or performance of the user can be improved. Steps 5410 and 5420 are described in more detail below.
- the feedback device 100 is not limited to the feedback device 100, and the feedback device 100 may be configured so that the voltage value of the two sizes is applied at two different points in time. Can be applied to a case where voltage values of three or more sizes are applied at various application time points.
- FIG. 55 is a diagram for explaining the cooling / heating performance of the feedback device 100 by adjusting the voltage magnitude according to the embodiment of the present invention.
- the x-axis of the graph represents time
- the y-axis represents temperature
- the line 5301 represents the temperature of the contact surface 1600 when a voltage Va of one magnitude is applied, .
- line 5301 may appear in another aspect.
- the feedback device 100 may apply the first voltage V1 at a first time instant tl. In one embodiment, if the first voltage V1 is equal to the voltage Va, the temperature of the contact surface 1600 may appear the same as the line 5301.
- the first voltage V1 may be smaller than the voltage Va.
- the thermoelectric module 1000 outputs thermal feedback of a smaller intensity than when the voltage Va is applied, so that the expected temperature at the contact surface 1600 when the first voltage V1 is applied is May be higher than the expected temperature at the contact surface 1600 when the voltage Va is applied. Therefore, in the section 5311, the temperature of the contact surface 1600 can be expressed higher than the line 5301.
- the minimum temperature reaching time which is the time to reach the expected temperature at the contact surface 1600 when the contact surface 1600 is applied with the first voltage V1
- the initial temperature arrival rate may be related to the amount of waste heat generated as well as the characteristics of the thermocouple array 1240.
- the first voltage V1 may be greater than the voltage Va.
- the thermoelectric module 1000 outputs a higher-intensity thermal feedback when the voltage Va is applied, so that the expected temperature at the contact surface 1600 when the first voltage V1 is applied is May be lower than the expected temperature at the contact surface 1600 when the voltage Va is applied. Therefore, in the interval 5311, the temperature of the contact surface 1600 can be expressed lower than the line 5301.
- the time for reaching the expected temperature can be shortened as the magnitude of the voltage applied to some thermocouple arrays 1240 increases.
- the minimum temperature arrival time when the first voltage V1 is applied may be shorter than when the voltage Va is applied.
- the waste heat when the voltage Va is applied, a larger amount of waste heat can be generated than when the voltage Va is applied, as the thermal feedback of higher intensity is outputted.
- the waste heat amount when the waste heat amount is accumulated over the threshold value, the waste heat may affect the temperature of the contact surface 1600, so that the minimum temperature arrival time when the first voltage V1 is applied is the voltage Va. May be longer than when it is applied.
- the sustain temperature may be similar to the case where the voltage Va is applied in the period 5312.
- the feedback device 100 may apply the second voltage V2 at a second time instant t2.
- the temperature of the contact surface 1600 may be the same as the line 5301.
- the second voltage V2 may be smaller than the voltage Va.
- the thermoelectric module 1000 outputs thermal feedback of a smaller intensity than when the voltage Va is applied, so that the expected temperature at the contact surface 1600 when the second voltage V2 is applied is May be higher than the expected temperature at the contact surface 1600 when the voltage Va is applied. Therefore, the sustain temperature when the second voltage V2 is applied in the period 5312 may be higher than when the voltage Va is applied.
- the second voltage V2 when the second voltage V2 is applied, a smaller amount of waste heat may be generated than when the voltage Va is applied, as the thermal feedback is outputted with less intensity than when the voltage Va is applied. If the continuous temperature when the voltage Va is applied is high due to waste heat, a small amount of waste heat is generated when the second voltage V2 is applied, and when the second voltage V2 is applied The sustained temperature may be less affected by the waste heat. This allows the expected temperature at the contact surface 1600 when the second voltage V2 is applied to be higher than the expected temperature at the contact surface 1600 when the voltage Va is applied, The sustain temperature when the second voltage V2 is applied in the period 5312 may be lower than when the voltage Va is applied.
- the duration when the second voltage V2 is applied is the voltage Va is applied It can be longer.
- the second voltage V2 may be greater than the voltage Va.
- the thermoelectric module 1000 outputs a higher-intensity thermal feedback when the voltage Va is applied, so that the expected temperature at the contact surface 1600 when the second voltage V2 is applied is May be lower than the expected temperature at the contact surface 1600 when the voltage Va is applied. Therefore, the sustain temperature when the second voltage V2 is applied in the period 5312 may be lower than when the voltage Va is applied.
- the sustain temperature may be affected by the waste heat, and in this case, the sustain temperature when the second voltage V2 is applied in the period 5312 may be higher than when the voltage Va is applied.
- the duration when the second voltage V2 is applied is the voltage Va is applied Can be shortened.
- the duration when the second voltage V2 is applied is the voltage Va, May be more similar than if they were authorized
- the feedback device 100 determines the voltage applied to the thermoelectric module 1000 so that the minimum temperature arrival time is shortened, the duration is lengthened, and the continuous temperature is lowered, and steps 5410 and 5420 are repeated. And the determined voltage is applied to the heat exchanger.
- FIG. 56 is a diagram for explaining the cooling / heating performance of the feedback device 100 by controlling the voltage application time according to the embodiment of the present invention.
- the x-axis of the graph represents time
- the y-axis represents temperature
- the line 5301 represents the voltage of the contact surface 1600 when Va of one magnitude is continuously applied, Temperature.
- step 5410 and step 5420 line 5301 may appear in a different form.
- the feedback device 100 may apply the first voltage V1 at a first time instant tl. In one embodiment, if the first voltage V1 is equal to the voltage Va, the temperature of the contact surface 1600 may appear the same as the line 5301.
- the feedback device 100 may apply the second voltage V2 at a second time instant t2.
- the temperature of the contact surface 1600 may be the same as the line 5301.
- the first voltage V1 is larger than the second voltage V2
- the second time point t2 in FIG. 56 is shorter than the time point at which the contact surface 1600 reaches the minimum temperature in FIG. It can be fast.
- 56 may be the time before the temperature of the contact surface 1600 reaches the minimum temperature by the first voltage V1 so that the temperature of the contact surface 1600 reaches the lowest temperature The temperature may not be reached, and thus the user may not receive the intended cold heat.
- the first voltage V1 is greater than the second voltage V2
- the second time point t2 of FIG. 56 is a time point when the temperature of the contact surface 1600 reaches the minimum temperature in FIG. Can be slower.
- the second time point t2 in FIG. 56 may be a time point after the temperature of the contact surface 1600 reaches the minimum temperature by the first voltage V1, and the temperature of the contact surface 1600 may be maintained at the minimum temperature .
- the first voltage V1 is continuously applied during the period from the first time point t1 to the second time point t2
- a larger amount of waste heat is generated than when the second voltage V2 is applied .
- the temperature of the contact surface 1600 does not maintain the minimum temperature, and the temperature may increase, and the generated waste heat may also affect the temperature of the contact surface 1600 after the second time point t2, . Due to waste heat, the duration can be shortened and the sustain temperature can be increased. Of course, depending on the amount of waste heat generated or the characteristics of the feedback device 100, the duration may be less affected by the waste heat. In this case, the second time point t2 in FIG. Although the temperature is later than the point at which the temperature reaches the minimum temperature, the temperature of the contact surface 1600 may maintain the lowest temperature and the effect on the duration and duration may be less.
- the feedback device 100 determines the application time of the voltage such that the temperature of the contact surface 1600 reaches the minimum temperature, the duration and the continuous temperature are improved, and, via steps 5410 and 5420, By applying the voltage at the determined time point, the cooling / heating performance can be improved.
- 57 is a view for explaining the cooling / heating performance of the feedback device 100 according to the application of a plurality of voltages according to the embodiment of the present invention.
- the cooling / heating performance of the feedback device 100 is described based on the embodiment of applying voltages of two sizes. However, in the present invention, May be applied.
- the x-axis of the graph represents time
- the y-axis represents temperature
- the line 5701 represents the temperature of the contact surface 1600 when the first voltage V1 to the fifth voltage V5 are applied have.
- the feedback device 100 when the feedback device 100 provides cold feedback, the feedback device 100 controls the magnitude of the plurality of voltages applied to the thermoelectric module 100, It is possible to determine the application timing of a plurality of voltages.
- the first voltage V1 to the fifth voltage V5 may sequentially have a high voltage value. That is, the first voltage V1 has the lowest voltage value and the fifth voltage V5 has the highest voltage value.
- the first voltage V1 to the fifth voltage V5 may be set to be applied from the first time point t1 to the fifth time point t2, respectively.
- the temperature of the contact surface 1600 may be gradually increased by the waste heat after reaching the lowest temperature.
- the second voltage V2 is applied between the second time point t2 and the third time point t3, the temperature may temporarily rise and then rise.
- the temperature of the contact surface 1600 may rise temporarily and then rise. Then, after the fifth time point t5, when the fifth voltage V5 is applied, the temperature is temporarily lowered and then the temperature is maintained at a specific temperature while being raised.
- the expected temperature of the contact surface 1600 is lowered when a high-voltage voltage is applied, so that the temperature of the contact surface 1600 is gradually reduced or maintained . Also, as the temperature is temporarily lowered from the second time point t2 to the fifth time point t5, the user can feel a strong cold feeling at that time point.
- the feedback device 100 determines the application timing of the plurality of voltages and the plurality of voltages in accordance with the characteristics of the feedback device 100, and applies the plurality of voltages at the plurality of application time points, Can be improved.
- the description has been made with reference to the embodiment in which the voltage value sequentially increases in FIG. 57, but the present invention is not limited thereto.
- the magnitude of the plurality of voltage values applied to the thermoelectric module 1000 can be variously set.
- the feedback device 100 when the feedback device 100 performs an endothermic operation, after the temperature of the contact surface 1600 reaches the minimum temperature, the temperature of the contact surface 1600 rises slightly due to the waste heat It is possible to reach a continuous temperature which is a temperature within a predetermined temperature range. From this temperature change of the contact 1600, the user can be provided with a cool feeling.
- the user may not feel a certain level of cold feeling.
- the user may be in a cold sense, and in some cases the user may not feel cold. This is due to the characteristics of the human senses.
- the human senses can not feel the intensity of the stimulus when the stimulus of a certain intensity persists. If the stimulus is applied at a certain rate or more than the stimulus of the specific intensity, It can be recognized. This can be explained by Weber's law.
- thermoelectric operation control 58 is a flowchart illustrating a method for improving user perception through thermoelectric operation control according to an embodiment of the present invention.
- the feedback device 100 may improve the cool feeling of the user through the execution of the thermoelectric action and the interruption of the thermoelectric action.
- the feedback device 100 may determine a first period of performing the thermoelectric action and a second period of interrupting the thermoactivity. The feedback device 100 may then perform a thermoelectric operation during a first period (5810). Also. The feedback device 100 may stop the thermoelectric action during the second period (5820). In addition, the feedback device may repeatedly perform steps 5810 and 5820 while providing a cool feeling to the user, thereby improving the cognitive performance of the user. Steps 5810 and 5820 are described in more detail below.
- thermoelectric action 59 is a diagram for explaining a cycle for controlling the thermoelectric action according to the embodiment of the present invention.
- the feedback device 100 can control the thermoelectric operation by applying and not applying a voltage of a certain magnitude.
- the thermoelectric operation may include an exothermic operation and an exothermic operation.
- the feedback device 100 applies a first voltage having a specific voltage value during the first period T1
- the thermoelectric module 100 outputs cold feedback according to the first voltage, and the second period T2
- the thermoelectric module 100 may not output the cold feedback.
- the feedback device 100 repeats the application and stop of the first voltage according to the first period T1 and the second period T2 according to the entire period T so that the degree of cool feeling of the user is improved .
- thermoelectric conversion control when the same voltage is applied is mainly described.
- the present invention is not limited to this.
- the thermoelectric conversion control The present invention can be applied to a method for enhancing the perceived performance of a user via the Internet.
- FIG. 60 is a view for explaining a method for improving user perception through thermoelectric operation control according to an embodiment of the present invention.
- the feedback device 100 may apply a first voltage having a specific voltage value to the thermal module 100.
- the first voltage may be the voltage used for the output of the cold feedback.
- the x-axis may represent time
- the y-axis may represent temperature
- line 6020 may represent the temperature of contact surface 1600.
- the temperature of the contact surface 1600 can be maintained within a certain temperature range after reaching the lowest temperature at the initial temperature. However, if the temperature of the contact surface 1600 is maintained for a long time in a specific temperature range, the degree of cold feeling of the user can be lowered by the Weber's law described above.
- the feedback device 1600 may perform a thermoelectric operation during a first period, at step 5810, and stop thermoelectric operation during a second period, at step 5820.
- the temperature of the contact surface 1600 may be periodically increased or decreased by more than a predetermined range after reaching the specific temperature range.
- the temperature may be lowered by a predetermined range or more at an elevated temperature for the first period after the temperature rises over a predetermined range for the second period.
- the predetermined range may mean a temperature range that is wider than the specific temperature range. Accordingly, the user receives cold heat according to the periodic temperature drop, and the user can recognize the cold feeling better by the cold heat.
- the line 6021 also indicates the temperature change of the contact surface 1600 when the step 5810 and the step 5820 are repeatedly performed in the feedback device 100 while the temperature of the contact surface 1600 continues at a certain temperature interval. . This will be described in detail in Fig. 61 and Fig.
- thermoelectric operation control is a view for explaining the temperature change of the contact surface by the thermoelectric operation control according to the embodiment of the present invention.
- the graph of Fig. 61 may show the temperature change of the contact surface 1600 when the feedback device 100 repeatedly performs steps 5810 and 5820.
- the temperature of the contact surface 1600 can repeat the temperature rise and the temperature fall within the section of the first temperature (temp 1) and the second temperature (temp 2). Depending on the temperature rise and the temperature fall, the cool feeling or performance of the user can be improved.
- the cool feeling or performance of the user can be improved when the temperature difference between the first temperature (temp 1) and the second temperature (temp 2) is equal to or greater than the threshold temperature difference.
- the temperature difference between the first temperature (temp 1) and the second temperature (temp 2) is equal to or less than the threshold temperature difference, the user is not stimulated to a certain level or higher, and according to Weber's law, It is difficult.
- the feedback device 100 may preset the threshold temperature difference. According to Weber's law, the user can recognize the cold change only if the temperature of the new heat transmitted to the user differs by a predetermined ratio or more with respect to the temperature of the cold received beforehand to the user. Accordingly, the threshold temperature difference may be changed according to the cold heat previously transmitted to the user. Accordingly, when the temperature of the contact surface 1600 is maintained within a certain range, the feedback device 1600 can confirm the temperature of the specific range and set the threshold temperature difference using the temperature in the specific range.
- the feedback device 100 may control to cause the threshold temperature difference to be generated at the contact surface 1600.
- the amount of temperature change of the contact surface 1600 in steps 5810 and 5820 is determined by the magnitude of the voltage applied to the thermoelectric module 100 in steps 5810 and 5820, The first cycle and the second cycle in which the thermoelectric operation is interrupted. For example, if the second period is short, the time at which the temperature of the contact surface 1600 becomes high is shortened, and accordingly, the temperature change amount can be reduced. In addition, when the first period is short, the time for lowering the temperature of the contact surface 1600 is shortened, and accordingly, the temperature change amount can be reduced.
- the feedback device 100 sets the threshold temperature difference and determines the magnitude of the voltage applied to the thermoelectric module 100 in steps 5810 and 5820 so that the temperature change amount of the contact surface 1600 is greater than or equal to the threshold temperature difference, At least one of a first period in which the thermoelectric operation is performed and a second period in which the thermoelectric operation is interrupted.
- thermoelectric operation control is a view for explaining the temperature change of the contact surface by thermoelectric operation control according to another embodiment of the present invention.
- the feedback device 100 may indicate a temperature change of the contact surface 1600 when it repeatedly performs steps 5810 and 5820.
- the temperature of the contact surface 1600 can be periodically repeated in temperature rise and temperature fall within the interval of the first temperature (temp 1) and the second temperature (temp 2).
- the first time t1 indicating the time when the temperature of the contact surface 1600 rises and the temperature of the contact surface 1600 falling
- the time ratio of the second time t2 indicating the time at which the time t2 is displayed can be variously displayed.
- the first time t1 and the second time t2 may be equal to each other.
- the first time t1 may be shorter than the second time t2, while in the example of (c), the first time t1 is longer than the second time t2 .
- the feedback device 100 may adjust the time ratio of the first time tl and the second time t2. Specifically, when the feedback device 100 outputs cold feedback, the first time t1 is the time when the thermoelectric action is interrupted, and the second time t2 is the time when the thermoelectric action is performed. Also, when the feedback device 100 outputs the warm-up feedback, the first time t1 is the time at which the thermoelectric action is performed, and the second time t2 is the time at which the thermoelectric action is interrupted. The feedback device 100 adjusts the time ratio of the first time t1 and the second time t2 so as to improve the perception of the user by adjusting the time for performing the thermoelectric action and the time for interrupting the thermoelectric action .
- the feedback device 100 when the feedback device 100 outputs cold feedback, it may be advantageous for the user to be cool if the interval over which the temperature of the contact surface 1600 rises is shorter .
- the feedback device 100 may control the thermoelectric module 1000 such that the second time t2 is shorter than the first time t1, as shown in (c).
- the feedback device 100 may control the thermoelectric module 1000 such that the first time t1 is shorter than the second time t2, as shown in (b).
- thermoelectric operation control are diagrams for explaining the temperature change of the contact surface by thermoelectric operation control according to another embodiment of the present invention.
- the graphs of Figs. 63-65 may illustrate the temperature variation of the contact surface 1600 when the feedback device 100 repeatedly performs steps 5810 and 5820.
- the graphs of FIGS. 63 to 65 may be different from the first period in which the thermoelectric operation is performed and the second period in which the thermoelectric operation is interrupted.
- the first cycle is set to 59.5 seconds
- the second cycle is set to 0.5 second
- the whole cycle is set to 60 seconds.
- the first cycle is 58 seconds
- the second cycle is 2 seconds
- the period is set to 60 seconds
- the graphs of FIGS. 63 to 65 can be set to 50 seconds for the first period, 10 seconds for the second period, and 60 seconds for the entire period.
- the graphs of FIGS. 63 to 65 may show a temperature change of the contact surface 1600 when a voltage of various strength is applied to the thermoelectric module 1000. Specifically, in the graphs of FIGS.
- the x-axis represents time
- the y-axis represents temperature
- lines 6001, 6101 and 6201 represent ambient temperature
- the lines 6020, 6120 and 6220 represent the temperature of the contact surface 1600 when the second voltage is applied and the lines 6030, 6130 and 6230 represent the temperature of the contact surface 1600 when the second voltage is applied
- 3 shows the temperature of the contact surface 1600 when the voltage is applied
- lines 6040, 6140 and 6240 indicate the temperature of the contact surface 1600 when the fourth voltage is applied.
- the first voltage, the second voltage, the third voltage, and the fourth voltage may be large in magnitude.
- the feedback device 1600 as the feedback device 1600 repeatedly performs steps 5810 and 5820, as shown in the graphs of Figures 63-65,
- the temperature rise and the temperature fall can be repeated within a predetermined temperature range. Depending on the temperature rise and the temperature fall, the cool feeling or performance of the user can be improved.
- the feedback device 1600 may adjust the first and second periods appropriately to improve the perception of the user. For example, when the threshold temperature difference indicating the temperature difference at which the user can recognize the cold change is smaller than the first threshold, the temperature of the contact surface 1600 in the first period in Fig. 63, If the feedback device 100 performs the steps 5810 and 5820 in accordance with the first period and the second period in FIG. 63, if the difference in temperature of the contact surface 1600 in the feedback device 100 is greater than the first threshold , The user can perceive a change in cold feeling.
- the threshold temperature difference is higher than the first threshold but less than a second threshold higher than the first threshold, and the temperature of the contact surface 1600 in the first period in FIG.
- the feedback device 100 performs steps 5810 and 5820 in accordance with the first period and the second period in Figure 64 to determine whether the user perception performance 1600 is greater than the second threshold, Can be improved.
- the difference between the temperature of the contact surface 1600 in the first period in FIG. 65 and the temperature of the contact surface 1600 in the second period is also larger than the second threshold value, Performing steps 5810 and 5820 in accordance with the first period and the second period at 65 may also improve user perception performance.
- the second period of FIG. 65 is longer than the second period of FIG.
- the temperature rise amount in FIG. 65 may be higher than the temperature increase amount of FIG. 64.
- warmth may be delivered to the user if the temperature rise is high. Therefore, if the threshold temperature difference is less than the second threshold value, the feedback device 100 may be operated in the first period and the second period in FIG. 64 to improve the degree of cool feeling of the user while the warmth is not transmitted to the user. And may perform steps 5810 and 5820 accordingly.
- the method according to an embodiment may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium.
- the computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination.
- the program instructions to be recorded on the medium may be those specially designed and configured for the embodiments or may be available to those skilled in the art of computer software.
- Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like.
- program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like.
- the hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.
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Abstract
Description
Claims (18)
- 피드백 디바이스에 있어서,유연성을 갖는 기판, 상기 기판 상에 배치되고, 열적 피드백을 위한 열전 동작 - 상기 열전 동작은 발열 동작 및 흡열 동작을 포함함 - 을 수행하는 열전 소자 및 상기 기판에 배치되는 접촉면을 포함하고, 상기 열전 동작을 통해 발생한 열을 상기 기판 및 상기 접촉면을 통해 상기 사용자에게 전달함으로써 상기 열적 피드백을 출력하는 열전 모듈; 및상기 열전 모듈을 제어하도록 마련되는 피드백 컨트롤러를 포함하고,상기 피드백 컨트롤러는,전체 열전 동작 시간 구간동안, 상기 접촉면의 온도가 최대 온도에 도달한 후 소정의 온도구간에서 상기 접촉면의 온도가 유지되도록 상기 열전 모듈을 제어하되,상기 접촉면의 온도가 상기 소정의 온도구간에 도달한 후 주기적으로 미리 정해진 임계치 이상의 온도 상승 또는 온도 하강이 발생하도록 상기 열전 모듈을 제어하는 것을 특징으로 하는,피드백 디바이스.
- 제1항에 있어서,상기 피드백 컨트롤러는,상기 피드백 디바이스가 상기 사용자에게 냉감을 제공하도록, 상기 열전 모듈이 상기 흡열 동작을 수행하게 하는 제1 전압을 상기 열전 모듈에 인가하는 것을 특징으로 하는,피드백 디바이스.
- 제2항에 있어서,상기 피드백 디바이스는,듀티 신호 형태인 상기 제1 전압을 인가하는 것을 특징으로 하는,피드백 디바이스.
- 제2항에 있어서,상기 피드백 컨트롤러는,상기 전체 열전 동작 시간 구간동안, 상기 접촉면의 온도가 초기 온도에서 최저 온도에 도달한 후, 소정의 포화 온도 구간에서 상기 접촉면의 온도가 유지되도록 상기 열전 모듈을 제어하는 것을 특징으로 하는,피드백 디바이스.
- 제4항에 있어서,상기 소정의 포화 온도 구간은 상기 최저온도보다 높고, 상기 초기 온도보다 낮은 것을 특징으로 하는,피드백 디바이스.
- 제4항에 있어서,상기 열전 모듈이 상기 흡열 동작을 수행함에 따라 상기 피드백 디바이스 내부에 폐열이 축적되고,상기 접촉면의 온도는 상기 폐열에 의해 상기 최저 온도에서 상기 소정의 포화 온도 구간으로 온도가 상승되는 것을 특징으로 하는,피드백 디바이스.
- 제6항에 있어서,상기 피드백 디바이스는 상기 폐열 중 적어도 일부를 상기 피드백 디바이스의 외부로 방출하는 방열부를 더 포함하고,상기 방열부에 의해 상기 폐열 중 적어도 일부가 상기 피드백 디바이스의 외부로 방출됨에 따라, 상기 접촉면의 온도가 상기 포화 온도 구간에서 유지되는 것을 특징으로 하는,피드백 디바이스.
- 제2항에 있어서,상기 피드백 컨트롤러는,상기 접촉면의 온도가 상기 포화 온도 구간에 도달한 후 주기적으로 미리 정해진 임계치 이상의 온도 상승 또는 온도 하강이 발생하도록, 상기 흡열 동작이 수행되는 제1 시간 및 상기 흡열 동작이 수행되지 않는 제2 시간이 주기적으로 반복되도록 상기 열전 모듈을 제어하는 것을 특징으로 하는,피드백 디바이스.
- 제8항에 있어서,상기 피드백 컨트롤러는,상기 제1 시간 및 상기 제2 시간이 주기적으로 반복되도록, 상기 제1 시간동안 상기 제1 전압을 상기 열전 모듈에 인가하고, 상기 제2 시간 동안 상기 제1 전압을 상기 열전 모듈에 인가하지 않는 것을 특징으로 하는,피드백 디바이스.
- 제8항에 있어서,상기 피드백 컨트롤러는,상기 제1 시간 및 상기 제2 시간동안의 상기 접촉면의 온도 변화량이 상기 사용자가 온도 변화를 인지할 수 있는 온도 차이를 나타내는 임계 온도차 이상이 되도록 상기 열전 모듈을 제어하는 것을 특징으로 하는,피드백 디바이스.
- 제10항에 있어서,상기 임계 온도차는 상기 포화 온도 구간에 따라 변경되는 것을 특징으로 하는,피드백 디바이스.
- 제10항에 있어서,상기 접촉면의 온도 변화량은 상기 제1 시간 및 상기 제2 시간의 비율에 따라 조절되는 것을 특징으로 하는,피드백 디바이스.
- 제12항에 있어서,상기 피드백 컨트롤러는,상기 포화 온도 구간을 확인하고, 상기 포화 온도 구간을 기초로 상기 임계 온도차를 설정하고,상기 접촉면의 온도 변화량이 상기 임계 온도차 이상이 되도록 상기 제1 시간 및 상기 제2 시간의 비율을 설정하는 것을 특징으로 하는,피드백 디바이스.
- 제13항에 있어서,상기 제1 시간 및 상기 제2 시간의 비율이 제1 비율일 때의 상기 접촉면의 온도 변화량이 제1 온도 변화량이고,상기 제1 시간 및 상기 제2 시간의 비율이 제2 비율일 때의 상기 접촉면의 온도 변화량이 제2 온도 변화량이며,상기 제1 온도 변화량 및 상기 제2 온도 변화량이 상기 임계 온도차 이상이며, 상기 제1 온도 변화량보다 상기 제2 온도 변화량이 높을 경우,상기 피드백 콘트롤러는,상기 접촉면의 온도 변화량이 상기 제1 온도 변화량이 되도록 상기 열전 모듈을 제어하는 것을 특징으로 하는,피드백 디바이스.
- 제8항에 있어서,상기 피드백 컨트롤러는,상기 제1 시간 및 상기 제2 시간의 합이 60초보다 작도록 설정하는 것을 특징으로 하는,피드백 디바이스.
- 제8항에 있어서,상기 피드백 컨트롤러는,상기 제1 시간 대비 상기 제2 시간의 비율이 0.9 이상이 되도록 상기 열전 모듈을 제어하는 것을 특징으로 하는,피드백 디바이스,
- 유연성을 갖는 기판, 상기 기판 상에 배치되고, 냉감 피드백을 위한 흡열 동작을 수행하는 열전 소자 및 상기 기판에 배치되는 접촉면을 포함하고, 상기 열전 동작을 통해 발생한 냉열을 상기 기판 및 상기 접촉면을 통해 상기 사용자에게 전달함으로써 상기 냉감 피드백을 출력하는 열전 모듈; 및상기 열전 모듈을 제어하도록 마련되는 피드백 컨트롤러를 포함하는 피드백 디바이스에 의해 수행되는 사용자의 냉감 향상 방법으로서,전체 열전 동작 시간 구간동안, 상기 접촉면의 온도가 최대 온도에 도달한 후 소정의 온도구간에서 상기 접촉면의 온도가 유지되도록 상기 열전 모듈을 제어하는 단계; 및상기 접촉면의 온도가 상기 소정의 온도구간에 도달한 후 주기적으로 미리 정해진 임계치 이상의 온도 상승 또는 온도 하강이 발생하도록 상기 열전 모듈을 제어하는 단계를 포함하는,냉감 향상 방법.
- 제17항의 방법을 수행하기 위한 프로그램이 기록된 컴퓨터로 판독 가능한 기록 매체.
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KR1020170111467A KR102473604B1 (ko) | 2017-08-31 | 2017-08-31 | 피드백 디바이스 및 이를 이용하는 열적 피드백 제공 방법 |
KR1020170111463A KR102427738B1 (ko) | 2017-08-31 | 2017-08-31 | 피드백 디바이스 및 이를 이용하는 열적 피드백 제공 방법 |
KR10-2017-0111467 | 2017-08-31 | ||
KR10-2017-0111466 | 2017-08-31 | ||
KR1020170111462A KR102427636B1 (ko) | 2017-08-31 | 2017-08-31 | 피드백 디바이스 및 이를 이용하는 열적 피드백 제공 방법 |
KR1020170111464A KR102473607B1 (ko) | 2017-08-31 | 2017-08-31 | 피드백 디바이스 및 이를 이용하는 열적 피드백 제공 방법 |
KR1020170111466A KR20190024460A (ko) | 2017-08-31 | 2017-08-31 | 피드백 디바이스 및 이를 이용하는 열적 피드백 제공 방법 |
KR10-2017-0111463 | 2017-08-31 | ||
KR10-2017-0111462 | 2017-08-31 | ||
KR10-2017-0111465 | 2017-08-31 | ||
KR1020170111465A KR102427660B1 (ko) | 2017-08-31 | 2017-08-31 | 피드백 디바이스 및 이를 이용하는 열적 피드백 제공 방법 |
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