WO2016009489A1 - 温風装置 - Google Patents

温風装置 Download PDF

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Publication number
WO2016009489A1
WO2016009489A1 PCT/JP2014/068740 JP2014068740W WO2016009489A1 WO 2016009489 A1 WO2016009489 A1 WO 2016009489A1 JP 2014068740 W JP2014068740 W JP 2014068740W WO 2016009489 A1 WO2016009489 A1 WO 2016009489A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuse
heating element
air
fixing
air device
Prior art date
Application number
PCT/JP2014/068740
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
林　俊明
裕司 安田
一郎 本木
鈴木　宏志
孔太郎 澤木
琢馬 上津
洋司 酒井
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2014/068740 priority Critical patent/WO2016009489A1/ja
Priority to JP2016534016A priority patent/JP6192837B2/ja
Priority to CN201480080555.XA priority patent/CN106537057B/zh
Priority to TW103139166A priority patent/TWI601921B/zh
Publication of WO2016009489A1 publication Critical patent/WO2016009489A1/ja

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating

Definitions

  • the present invention relates to a warm air device that blows out air heated by a heating element.
  • a thermal fuse that is a device for preventing an overheating of the heating element may be provided.
  • the temperature fuse is held at a position spaced from the heating element by holding the temperature fuse with a protective net.
  • the present invention has been made in view of the above, and an object of the present invention is to obtain a warm air device capable of reducing the difference between the actual temperature of the heating element and the temperature detected by the thermal fuse.
  • the present invention has an air inlet and an air outlet formed on the outer surface, and an air passage connecting the air inlet and the air outlet is formed inside. And a blower that allows air to pass from the air inlet to the air outlet in the air passage, a heating element provided in the air passage, and a fuse portion that is in contact with the heating element. It is characterized by that.
  • the hot air device according to the present invention has an effect that the difference between the actual temperature of the heating element and the temperature detected by the temperature fuse can be reduced.
  • FIG. 1 The perspective view which shows schematic structure of the warm air apparatus concerning Embodiment 1 of this invention.
  • Sectional drawing which shows schematic structure of warm air apparatus Front view showing schematic configuration of heating unit Cross-sectional view taken along line YY shown in FIG.
  • the perspective view which shows the state which decomposed
  • Sectional view of the heating unit fixing frame with the heating unit held Partial expanded sectional view of the A portion shown in FIG.
  • Diagram showing schematic configuration of fuse section Perspective view of fuse fixing part A perspective view of the heating unit fixing frame with the fuse unit fixed Perspective view of lead wire fixing part
  • FIG. 1 is a perspective view showing a schematic configuration of a hot air device 50 according to a first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view showing a schematic configuration of the hot air device 50.
  • the hot air device 50 includes a casing 1, a blower 30, a heating unit 31, and a fuse unit 5. On the outer surface of the casing 1, openings serving as an air inlet 32 and an air outlet 33 are formed.
  • an air passage 34 connecting the air inlet 32 and the air outlet 33 is formed inside the casing 1.
  • the blower 30 is installed in the air passage 34.
  • the blower 30 allows air to pass through the air passage 34 from the air inlet 32 toward the air outlet 33 as indicated by an arrow X in FIG.
  • FIG. 3 is a front view illustrating a schematic configuration of the heating unit 31.
  • FIG. 4 is a cross-sectional view taken along the line YY shown in FIG.
  • the heating unit 31 includes a plurality of heating elements 31a and a plurality of fins 31b.
  • the heating element 31a has a rod shape.
  • the plurality of heating elements 31a are provided at intervals so as to be parallel to each other.
  • the longitudinal direction of the heating unit 31a is the first direction.
  • the heating element 31a is an electric heater that generates heat when supplied with electric power.
  • the heating element 31a is preferably a PTC (Positive Temperature Coefficient) heater from the viewpoint of suppressing overheating. Since the PTC heater uses a PTC element whose resistance value increases rapidly when the Curie temperature is reached, it has a self-temperature control function.
  • the plurality of fins 31b protrude from the heating element 31a.
  • the fin 31b has a plate shape.
  • the plurality of fins 31b are formed with their plate surfaces facing each other and spaced apart from each other.
  • the heat generated in the heating element 31a is transmitted to the fin 31b.
  • the materials of the heating element 31a and the fin 31b are determined in consideration of thermal conductivity. Examples of the material of the heating element 31a and the fin 31b include metals including aluminum.
  • the heating unit 31 is held by a heating unit fixing frame described later.
  • the heating part fixing component 18 is formed with a notch 19 for fastening with a screw.
  • the heating unit 31 is fixed in the air passage 34 by fixing the heating unit fixing frame in the air passage 34.
  • the air passing through the air passage 34 is heated by passing between the fins 31b. That is, the warm air device 50 warms the air sucked into the air passage 34 from the air suction port 32 by the heating unit 31 and blows it out from the air outlet 33.
  • the warm air device 50 includes a heater.
  • the warm air device 50 includes a dryer.
  • the warm air apparatus 50 includes a bathroom heating dryer.
  • FIG. 5 is a perspective view of the heating unit fixing frame 2 in a state where the heating unit 31 is held.
  • FIG. 6 is a perspective view showing a state where the heating unit 31 and the heating unit fixing frame 2 are disassembled.
  • FIG. 7 is a cross-sectional view of the heating unit fixing frame 2 in a state where the heating unit 31 is held.
  • FIG. 8 is a partially enlarged sectional view of a portion A shown in FIG.
  • the heating unit 31 is held by the heating unit fixing frame 2 by fastening the heating unit fixing components 18 projecting on both sides with screws.
  • the heating part fixing component 18 is formed with a notch 19 for fastening with the screw 10a.
  • the heating unit 31 is fixed in the air passage 34 while being held by the heating unit fixing frame 2.
  • the heating unit fixing frame 2 is fixed in the air passage 34 and constitutes a part of the casing 1.
  • the heating unit fixing frame 2 is formed with a screw boss 12 for screwing the screw 10a.
  • FIG. 9 is a diagram illustrating a schematic configuration of the fuse portion 5.
  • the fuse unit 5 includes a temperature fuse 23, a lead wire 8, and a protective tube 25. Two lead wires 8 are connected to the thermal fuse 23. The thermal fuse 23 and the two lead wires 8 are connected in series. The lead wire 8 and the thermal fuse 23 are connected by a crimping part 24.
  • the protective tube 25 covers a part of the thermal fuse 23, the crimping component 24, and the lead wire 8, and has a rod-like shape as a whole. The protection tube 25 protects the lead wire 8 from the heat of the heating element 31a. Further, the thermal fuse 23 and the crimping part 24 are electrically insulated from surrounding parts.
  • the temperature fuse 23 detects the temperature of the heating element 31a.
  • the heating element 31a becomes equal to or higher than the temperature set to the abnormal temperature
  • the low melting point alloy provided in the temperature fuse 23 is melted and the lead wires 8 are blocked from each other.
  • supply of power to the heating element 31a can be stopped by melting of the low melting point alloy.
  • the fuse unit 5 stops supplying power to the heating element 31a to prevent the heating element 31a from being overheated.
  • the fuse fixing portion 4 has a rod-like shape as a whole, and has the same length as the protective tube 25 portion of the fuse portion 5.
  • the fuse fixing portion 4 includes an elastic force applying portion 4a provided on the opposite side of the heat generating body 31a across the fuse portion 5, and a fuse portion extending from the elastic force applying portion 4a toward the heat generating body 31a. 5 has a sandwiching portion 4b for sandwiching the protective tube 25. Further, the sandwiching portion 4 b is formed with a protruding amount smaller than the diameter of the protective tube 25.
  • the fuse fixing part 4 is fixed to the heating part fixing frame 2 using a screw 9 at one end in the longitudinal direction.
  • a screw hole 14 for screwing the screw 9 is formed in the heating unit fixing frame 2.
  • the other end side in the longitudinal direction of the fuse fixing portion 4 is fixed by fitting the protrusion 15 and the hole 22.
  • FIG. 6 shows an example in which the protrusion 15 is formed in the heating unit fixing frame 2 and the hole 22 is formed in the fuse fixing unit 4.
  • the protrusion may be formed in the fuse fixing portion 4 and the hole may be formed in the heating portion fixing frame 2.
  • the distance between the heating element 31a and the elastic force applying unit 4a is the protection of the fuse unit 5. It becomes smaller than the diameter of the tube 25. Therefore, when the fuse portion 5 is provided, the fuse fixing portion 4 is elastically deformed, and an elastic force that presses the protective tube 25 against the heating element 31a is generated.
  • FIG. 10 is a perspective view of the fuse fixing portion 4.
  • a recessed portion 20 is formed in a part of the fuse fixing portion 4 so as to be recessed from the heating element 31a.
  • FIG. 11 is a perspective view of the heating unit fixing frame 2 in a state where the fuse unit 5 is fixed.
  • the fuse portion 5 is fastened together with the fuse fixing portion 4 and the band 7 at the recessed portion 20.
  • By tightening the band 7, a part of the fuse part 5 is pushed into the recessed part 20 side.
  • the fuse portion 5 is fixed to the fuse fixing portion 4 by fastening with the band 7. Further, the fuse part 5 is positioned so that the position of the crimping part 24 is the position of the recessed part 20.
  • FIG. 11 for convenience of drawing, the fuse portion 5 in a temporarily fixed state before being tightened by the band 7 is shown.
  • the heating unit fixing frame 2 has a lead wire fixing unit 6 for determining and positioning a path of a portion of the lead wire 8 of the fuse unit 5 extending from the protective tube 25 with a screw 10b. Fixed. A screw hole 13 for screwing the screw 10b is formed in the heating unit fixing frame 2.
  • FIG. 12 is a perspective view of the lead wire fixing portion 6.
  • the lead wire fixing portion 6 includes a fastening portion 27 fastened by a screw 10 b and a route determining portion 28 that extends from the fastening portion 27 and determines the route of the lead wire 8.
  • the route determination unit 28 determines the route of the lead wire 8 by passing the lead wire 8 between the recesses.
  • FIG. 13 is a perspective view of the fuse portion 5 in a state where the lead wire 8 is fixed to the lead wire fixing portion 6.
  • the path determining portion 28 moves in a direction to move the lead wire 8 away from the thermal fuse 23.
  • the lead wire fixing part 6 is fixed to the heating part fixing frame 2. This is also fixed in the same posture when the lead wire fixing portion 6 presses the protective tube 25 portion to determine the route of the lead wire 8.
  • the fuse portion 5 is in contact with the heat generating portion 31a on the windward side.
  • the fuse portion 5 and the fuse fixing portion 4 are formed in a shape and size that fit within a range in which the heating element 31 a extends to the windward side.
  • fixed part 4 is formed with the same material as the heat generating body 31a.
  • the temperature of the heating element 31a is easily transmitted to the fuse part 5 reliably by heat conduction. Thereby, the difference of the temperature of the heat generating body 31a and the temperature which the fuse part 5 detects can be suppressed. And when the heat generating body 31a becomes abnormal temperature, it can prevent delaying the stop of supply of the electric power to the heat generating body 31a.
  • the fuse portion 5 since the fuse portion 5 is pressed against the heating element 31a by the elastic force generated in the fuse fixing portion 4, the fuse portion 5 can be reliably brought into contact with the heating element 31a.
  • the heating unit 31 and the fuse fixing unit 4 are fixed to the heating unit fixing frame 2 without providing the fuse unit 5, the distance between the heating element 31 a and the elastic force applying unit 4 a is the fuse unit 5. Therefore, even if the dimensions of the fuse part 5, the heat generating part 31, and the fuse fixing part 4 vary, a gap is hardly generated between the fuse part 5 and the heat generating part 31.
  • the sandwiching portion 4b of the fuse fixing portion 4 is formed with a projecting amount smaller than the diameter of the protective tube 25 of the fuse portion 5, the fuse fixing portion 4 is difficult to contact the heating element 31a. Therefore, it can suppress that the temperature of the fuse fixing
  • a recessed portion 20 is formed in the direction away from the heating element 31 a with respect to the fuse fixing portion 4. Therefore, by fastening the band 7, the fuse part 5 can be pushed into the recessed part 20 side. This makes it difficult for the band 7 to protrude toward the heating element 31a. Since it becomes difficult for the band 7 to protrude toward the heating element 31a, the fuse portion 5 and the heating element 31a can be more reliably brought into contact with each other.
  • the fuse part 5 is positioned so that the position of the crimping part 24 becomes the position of the recessed part 20.
  • the diameter of the protection tube 25 at the part covering the crimping part 24 is larger than the diameter of the protection tube 25 at the part covering the thermal fuse 23. May also be larger.
  • the fuse fixing portion 4 has one end in the longitudinal direction fixed to the heating portion fixing frame 2 using a screw 9 and the other end fixed by fitting the projection 15 and the hole 22, so that the screw 9 is fastened.
  • the work can be reduced to one end side, and the assembly work can be facilitated.
  • the fuse part 5 and the fuse fixing part 4 are formed in a shape and size that fit within the range in which the heating element 31a extends to the windward side, it is difficult to hinder the flow of air passing through the air passage 34. Further, since the fuse portion 5 is provided on the windward side with respect to the heating element 31a, an excessive temperature rise is suppressed by the air passing through the air passage 34, and it is possible to prevent the temperature fuse 23 from being melted by mistake. it can.
  • the path determining portion 28 moves in a direction away from the thermal fuse 23, so that the lead wire 8 is slackened. It becomes difficult. Thereby, the disconnection and the position shift of the thermal fuse 23 can be suppressed.
  • the heating element 31a and the fuse fixing portion 4 are formed with the same material, it is possible to suppress the occurrence of electrolytic corrosion when condensation occurs.
  • the thermal fuse 23 is not limited to the fusible alloy type in which the low melting point alloy melts as the temperature rises, and has a spring and a temperature sensitive pellet inside, and the ambient temperature rises and the temperature sensitive pellet melts. You may use the pellet type thing by which the lead wire 8 and a contact are pushed apart with a spring, and an electric current is interrupted
  • the fuse portion 5 may be provided on the leeward side of the heating element 31a. Even when the fuse part 5 is provided on the leeward side of the heating element 31a, the fuse part 5 and the fuse fixing part 4 are formed in a shape and size that can be accommodated within the range in which the heating element 31a is extended to the leeward side. The flow of air passing through the air passage 34 can be made difficult to obstruct.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuses (AREA)
  • Central Heating Systems (AREA)
  • Direct Air Heating By Heater Or Combustion Gas (AREA)
  • Resistance Heating (AREA)
PCT/JP2014/068740 2014-07-14 2014-07-14 温風装置 WO2016009489A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/JP2014/068740 WO2016009489A1 (ja) 2014-07-14 2014-07-14 温風装置
JP2016534016A JP6192837B2 (ja) 2014-07-14 2014-07-14 温風装置
CN201480080555.XA CN106537057B (zh) 2014-07-14 2014-07-14 暖风装置
TW103139166A TWI601921B (zh) 2014-07-14 2014-11-12 Heating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/068740 WO2016009489A1 (ja) 2014-07-14 2014-07-14 温風装置

Publications (1)

Publication Number Publication Date
WO2016009489A1 true WO2016009489A1 (ja) 2016-01-21

Family

ID=55078012

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/068740 WO2016009489A1 (ja) 2014-07-14 2014-07-14 温風装置

Country Status (4)

Country Link
JP (1) JP6192837B2 (zh)
CN (1) CN106537057B (zh)
TW (1) TWI601921B (zh)
WO (1) WO2016009489A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023032991A1 (ja) * 2021-08-31 2023-03-09 京セラ株式会社 ヒータおよびヘアアイロン

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220089593A (ko) * 2020-12-21 2022-06-28 이민우 휴대용 히터

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4637171Y1 (zh) * 1968-02-29 1971-12-22
JPS5848999Y2 (ja) * 1978-10-19 1983-11-09 三菱電機株式会社 電熱装置の温度過昇防止装置取付構造
JPH06314040A (ja) * 1993-04-28 1994-11-08 Canon Inc 加熱装置
JPH0968350A (ja) * 1995-08-31 1997-03-11 Kanazawa Kogyo Kk 電気機器
JP2600849B2 (ja) * 1988-09-28 1997-04-16 松下電器産業株式会社 電気温風機
JPH10114990A (ja) * 1996-10-15 1998-05-06 Hitachi Chem Co Ltd 人体局部洗浄装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04214151A (ja) * 1990-12-10 1992-08-05 Clarion Co Ltd 足下温風機センサ冷却機構部材
CN101078562A (zh) * 2007-06-29 2007-11-28 泰州泰怡热工电器有限公司 空气预热器
CN102400932B (zh) * 2011-11-21 2016-01-20 李家俊 一种一体化多用暖风机风扇
CN103542531B (zh) * 2012-07-12 2016-04-06 珠海格力电器股份有限公司 带风机的电加热器及其控制方法和电路及家用电器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4637171Y1 (zh) * 1968-02-29 1971-12-22
JPS5848999Y2 (ja) * 1978-10-19 1983-11-09 三菱電機株式会社 電熱装置の温度過昇防止装置取付構造
JP2600849B2 (ja) * 1988-09-28 1997-04-16 松下電器産業株式会社 電気温風機
JPH06314040A (ja) * 1993-04-28 1994-11-08 Canon Inc 加熱装置
JPH0968350A (ja) * 1995-08-31 1997-03-11 Kanazawa Kogyo Kk 電気機器
JPH10114990A (ja) * 1996-10-15 1998-05-06 Hitachi Chem Co Ltd 人体局部洗浄装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023032991A1 (ja) * 2021-08-31 2023-03-09 京セラ株式会社 ヒータおよびヘアアイロン

Also Published As

Publication number Publication date
TWI601921B (zh) 2017-10-11
JPWO2016009489A1 (ja) 2017-04-27
CN106537057A (zh) 2017-03-22
JP6192837B2 (ja) 2017-09-06
TW201602509A (zh) 2016-01-16
CN106537057B (zh) 2019-04-30

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