WO2012176529A1 - Appareil de chauffage et de séchage par induction - Google Patents

Appareil de chauffage et de séchage par induction Download PDF

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Publication number
WO2012176529A1
WO2012176529A1 PCT/JP2012/059110 JP2012059110W WO2012176529A1 WO 2012176529 A1 WO2012176529 A1 WO 2012176529A1 JP 2012059110 W JP2012059110 W JP 2012059110W WO 2012176529 A1 WO2012176529 A1 WO 2012176529A1
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WO
WIPO (PCT)
Prior art keywords
induction heating
outer plate
heating coil
vehicle
sheet
Prior art date
Application number
PCT/JP2012/059110
Other languages
English (en)
Japanese (ja)
Inventor
香織 長谷川
久年 坊野
Original Assignee
トヨタ車体株式会社
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 トヨタ車体株式会社 filed Critical トヨタ車体株式会社
Priority to JP2013521492A priority Critical patent/JP5477514B2/ja
Publication of WO2012176529A1 publication Critical patent/WO2012176529A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
    • F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
    • F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/32—Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • B05D3/0281—After-treatment with induction heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying good
    • F26B2210/12—Vehicle bodies, e.g. after being painted

Definitions

  • the present invention relates to an induction heating drying apparatus that performs induction heating from the outside of a vehicle outer plate.
  • Patent Document 1 it is disclosed that at least one electromagnetic induction heating coil is provided so as to face the rocker portion of the automobile body, and the coating film applied to the rocker portion is dried. ing. Thereby, the rolling-up of the foreign material by a hot air is suppressed, and the quality defect that a foreign material adheres to a coating film by extension is reduced.
  • the electrodeposition coating film forming method of Patent Document 2 a coating film obtained by performing electrodeposition coating on a metal three-dimensional object such as an automobile body is selected by a plurality of induction heating devices. It is disclosed to heat and dry. As a result, it takes time to heat the coating film, part of it is overheated to bring the hot air temperature higher than the baking temperature, and the coating film deteriorates. The problem of not being able to paint and dry cure has been improved.
  • the present invention has been made in view of such a background.
  • the present invention provides an induction heating coil that performs induction heating from the outside of a vehicle outer plate to dry the surface of the outer plate;
  • the induction heating coil is arranged between the window portions located between the window portions in the entire outer plate of the vehicle, and the heating of the extension outer plate portion by the magnetic field generated by the induction heating coil is performed.
  • an induction heating drying apparatus characterized by comprising:
  • the induction heating and drying apparatus includes an induction heating coil and a magnetic body.
  • a magnetic body is arrange
  • the magnetic body is less susceptible to the influence of the magnetic field generated when the induction heating coil is energized.
  • the cross-sectional area of the flow path is reduced compared to the general part of the outer plate, and the hang-over outer plate part where the eddy current flows more easily than the general part of the outer plate makes the eddy current difficult to flow. It is possible to prevent the outer plate portion from being heated excessively.
  • the induction heating and drying apparatus it is possible to make it difficult to heat the overhanging outer plate portion that is easily heated.
  • the whole of the general part of the outer plate and the entire outer skin of the hanging plate can be heated as uniformly as possible, and the entire outer plate of the vehicle can be dried as uniformly as possible.
  • FIG. 1 is a perspective view showing an induction heating drying apparatus according to Example 1.
  • the outer plate of each part of the vehicle the outer plate of each part of the main body such as fender, roof, pillar, etc., and the door (side door), hood (bonnet), roof, back door (trunk lid) assembled to the main body ) Etc.
  • board of a vehicle can be made into the steel plate for various motor vehicles, for example, can be a cold-rolled steel plate, a cold high-tensile steel plate, etc.
  • the induction heating coil is formed to loop around the vehicle in the front-rear direction while being displaced in the front-rear direction, and the magnetic body includes the induction heating coil and the hanging outer plate portion. And a shielding sheet made of a sheet-shaped magnetic shield sheet having a property of shielding magnetism.
  • the magnetic field generated when the induction heating coil is energized is blocked by the shielding sheet so as not to directly hit the hanging outer plate portion.
  • the cross-sectional area of the flow path is reduced compared to the general part of the outer plate, and if the magnetic field by the induction heating coil is directly applied to the hanging outer plate part where the eddy current tends to flow compared to the general part of the outer plate. Can not be. Therefore, it is possible to prevent the overhanging plate portion from being heated excessively.
  • the induction heating coil is formed so as to be arranged in a loop around the vehicle in the front-rear direction while being displaced in the front-rear direction.
  • a reflection sheet disposed outside the portion of the induction heating coil facing the general portion other than the hanging outer plate portion of the outer plate.
  • the method of using the magnetic shield sheet is devised, and the magnetic shield sheet is arranged on the inner side (vehicle side) with respect to the induction heating coil, or on the outer side (opposite side of the vehicle) with respect to the induction heating coil. Depending on whether they are arranged, the sheet for shielding and the sheet for reflection are properly used.
  • the shielding sheet is disposed inside the induction heating coil, and is disposed between the hanging outer plate portion of the vehicle outer plate and the induction heating coil. In the hanging outer plate portion of the outer plate of the vehicle, the magnetic field generated when the induction heating coil is energized is blocked by the shielding sheet so as not to directly hit the hanging outer plate portion.
  • the cross-sectional area of the flow path is reduced compared to the general part of the outer plate, and if the magnetic field by the induction heating coil is directly applied to the hanging outer plate part where the eddy current tends to flow compared to the general part of the outer plate. Can not be. Therefore, it is possible to prevent the overhanging plate portion from being heated excessively.
  • the reflection sheet is arranged outside the general part of the outer plate of the vehicle and outside the induction heating coil.
  • the general part of the outer plate of the vehicle most of the magnetic field generated when the induction heating coil is energized is reflected by the reflection sheet and applied to the general part. Thereby, it can be made easy to hit the general part of an outer plate with the magnetic field by an induction heating coil. Therefore, the general part can be easily heated.
  • the induction heating and drying apparatus it is possible to make it difficult to heat the overhanging outer plate portion that is easily heated, and it is possible to easily heat the general portion that is difficult to be heated.
  • the whole of the general part of the outer plate and the entire outer skin of the hanging plate can be heated as uniformly as possible, and the entire outer plate of the vehicle can be dried as uniformly as possible.
  • the shielding sheet and the reflection sheet are attached to the movable tip portions of different robots, respectively, and are configured such that the position and posture can be changed by movement of the movable tip portion of the robot. Also good.
  • the position and posture of the shielding sheet and the reflecting sheet can be varied by moving the movable tip of the robot. Thereby, the difficulty of heating each part of the vehicle and the ease of heating can be appropriately adjusted.
  • the induction heating and drying apparatus can be applied to vehicles of various vehicle types in which the position and size of the hanging outer plate portion are different.
  • the shielding sheet and the reflection sheet are provided with temperature sensors for measuring the ambient temperature, and heating by the induction heating coil is performed until the temperature measured by the temperature sensor reaches a predetermined temperature. It may be configured to do.
  • the temperature sensor measures the temperature around the shielding sheet and the temperature around the reflection sheet, and the temperature of each part of the vehicle that is heated by the induction heating coil is set to a predetermined temperature. Can be.
  • the induction heating coil is formed so as to loop around the vehicle in the front-rear direction while being displaced in the front-rear direction, and the magnetic body includes the induction heating coil, the outer plate, An annular magnetic body arranged in a loop around the front-rear direction at a portion facing the spanning outer plate portion may be used.
  • a magnetic field in the opposite direction to the magnetic field generated by the induction heating coil can be generated in the annular magnetic body over the entire circumference of the portion facing the hanging outer plate portion.
  • the eddy current generated by the magnetic field generated by the induction heating coil can be canceled by the eddy current generated by the annular magnetic body in the entire circumference of the portion facing the hanging outer plate portion. Therefore, it is possible to prevent the entire circumference of the portion facing the hanging outer plate portion from being heated as much as possible.
  • part facing a hanging outer plate part general parts other than the hanging outer plate part in an outer plate can be heated by the eddy current by an induction heating coil.
  • the annular magnetic body may be an annular copper plate.
  • an eddy current can be effectively passed through the annular copper plate. Therefore, the entire outer plate of the vehicle can be dried as uniformly as possible at a low cost.
  • the annular magnetic body can be formed in a coil shape that loops while being displaced in the front-rear direction, similarly to the induction heating coil.
  • an AC voltage whose phase is shifted by 180 (opposite phase) with respect to the AC voltage applied to the induction heating coil can be applied to both ends of the coil-shaped annular magnetic body.
  • the hanging outer plate part is at least one of a portion formed between the windshield and the side glass, between the side glasses, between the side glass and the rear glass, and between the sunroof and the windshield, the side glass or the rear glass. It may be.
  • the magnetic body can make it difficult to heat any of the above portions (pillars) as the hanging outer plate portion.
  • Example 1 As shown in FIGS. 1 and 2, the induction heating drying apparatus 1 of this example performs induction heating from the outside of the outer plate (outer panel) 51 of the vehicle 5 to dry the surface of the outer plate 51. And a sheet-shaped magnetic shield sheet 3 having the property of blocking magnetism. As shown in FIG. 3, the magnetic shield sheet 3 includes a hanging outer plate portion 53 and the induction heating coil 2 in the hanging outer plate portion 53 positioned between the window portions 54 in the entire outer plate 51 of the vehicle 5.
  • the shielding sheets 3 ⁇ / b> A and 3 ⁇ / b> B of this example serve as a magnetic body for making it difficult for the spanning outer plate portion 53 to be heated by the magnetic field generated by the induction heating coil 2.
  • the induction heating and drying apparatus 1 of this example is used to heat the outer plate 51 of each part of the vehicle 5 after coating such as electrodeposition coating, and to heat and dry the coating film on the outer plate 51 of each part. .
  • the vehicle 5 is transported from the painting process to the drying process by a transport line.
  • the outer plate 51 of each part of the vehicle 5 includes an outer plate 51 such as a fender, a roof, and a pillar as each part in the main body 50, a door (side door) as an opening / closing part assembled to the main body 50, and a hood. It means the outer plate 51 such as (bonnet), roof, back door (trunk lid) and the like.
  • the outer plate 51 is a steel plate for automobiles using iron.
  • the induction heating coil 2 is configured to apply an alternating voltage of a predetermined frequency from a power source to both ends and heat the metal outer plate 51 by eddy current generated in the coil. is there.
  • the induction heating coil 2 can change energization conditions by changing a frequency, an alternating voltage, or the like.
  • the induction heating coil 2 of this example is formed so as to loop around the vehicle 5 in the front-rear direction L while being displaced in the front-rear direction L.
  • the induction heating coil 2 is formed by a plurality of loops that are continuously connected in the front-rear direction L of the vehicle 5.
  • the hanging outer plate portion 53 of this example is a pillar formed between the side glasses.
  • the pillars in the vehicle 5 of this example are the A pillar 531 between the windshield 541 and the front side glass 542, the B pillar 532 between the front side glass 542 and the intermediate side glass 543, and between the intermediate side glass 543 and the rear side glass 544.
  • the shielding sheets 3 ⁇ / b> A and 3 ⁇ / b> B of this example are disposed between the B pillar 532 and the induction heating coil 2 and between the C pillar 533 and the induction heating coil 2.
  • the shielding sheets 3A and 3B are long in the vertical direction, and are disposed on the B pillar 532 and the door portion 52 positioned below the B pillar 532.
  • the shielding sheets 3 ⁇ / b> A and 3 ⁇ / b> B and the reflecting sheet 3 ⁇ / b> C are separately disposed on the side surfaces on both sides of the vehicle 5.
  • FIG. 4 shows a state in which the magnetic shield sheet 3 is arranged on the inner side (vehicle 5 side) with respect to the induction heating coil 2 and the shielding sheets 3A and 3B are formed, with the induction heating coil 2 and the vehicle 5 taken as a cross section.
  • magnetic lines of force (magnetic flux) X are formed radially around the induction heating coil 2 (see FIG. 8).
  • the magnetic force lines X colliding with the shielding sheets 3A and 3B are The light is reflected on the induction heating coil 2 side without passing through the shielding sheets 3A and 3B. Thereby, in the periphery of the shielding sheets 3A and 3B, the magnetic lines of force X do not pass directly to the hanging outer plate portion 53 of the outer plate 51 of the vehicle 5, and no eddy current is directly generated.
  • the magnetic shield sheet 3 is formed by forming resin film layers 32 on both surfaces of a film-like base material 31 that shields magnetism.
  • the base material 31 can contain silicon (Si), boron (B), etc. with respect to iron (Fe).
  • the base material 31 can be composed of a nanocrystalline soft magnetic material having a high magnetic permeability.
  • the resin film layer 32 is made of a resin such as polyethylene terephthalate (PET), and can be bonded to the substrate 31 with an adhesive.
  • FIG. 5 shows a state in which the magnetic shield sheet 3 is arranged outside the induction heating coil 2 (on the side opposite to the vehicle 5) to form the reflection sheet 3C, with the induction heating coil 2 and the vehicle 5 taken as a cross section. .
  • the magnetic shield sheet 3 is disposed outside the induction heating coil 2 to form the reflecting sheet 3C, the magnetic force lines X that collide with the reflecting sheet 3C do not pass through the reflecting sheet 3C, and the vehicle 5 Reflected on the side.
  • the magnetic lines of force X are concentrated on the vehicle 5 side, the magnetic lines of force X are directly passed to the general part 52 in the vehicle 5, and the eddy current is more effectively directly applied to the general part 52 in the vehicle 5. Can be generated automatically.
  • the shielding sheets 3 ⁇ / b> A and 3 ⁇ / b> B and the reflecting sheet 3 ⁇ / b> C of this example are attached to movable tip portions 41 of different robots 4, respectively.
  • the induction heating and drying apparatus 1 of this example includes a first shielding sheet 3 ⁇ / b> A disposed over the entire length of the B pillar 532 formation portion on the side surface of the vehicle 5, and the B pillar 532 formation portion and C pillar 533 on the side surface of the vehicle 5.
  • Each of the shielding sheets 3 ⁇ / b> A and 3 ⁇ / b> B and the reflecting sheet 3 ⁇ / b> C is disposed on the side surfaces on both sides of the vehicle 5.
  • Each of the shielding sheets 3 ⁇ / b> A and 3 ⁇ / b> B and the reflecting sheet 3 ⁇ / b> C disposed on both sides of the vehicle 5 is configured such that the position and posture thereof can be changed by moving the movable tip 41 of the robot 4.
  • the positions and postures of the shielding sheets 3A and 3B and the reflection sheet 3C are varied, so that it is difficult to heat each part of the outer plate 51 of the vehicle 5. Easiness can be adjusted as appropriate, and the heating temperature in each part of the outer plate 51 of the vehicle 5 can be made as uniform as possible.
  • the induction heating drying apparatus 1 can be applied to the vehicles 5 of various vehicle types in which the position and size of the hanging outer plate portion 53 are different.
  • a temperature sensor 42 for measuring the ambient temperature can be disposed on each of the shielding sheets 3A and 3B and the reflecting sheet 3C.
  • the induction heating drying apparatus 1 can be configured to perform heating by the induction heating coil 2 until the temperature measured by the temperature sensor 42 reaches a predetermined temperature.
  • the shielding sheets 3A and 3B and the reflecting sheet 3C can be used as follows.
  • the temperature of each part of the outer plate 51 of the vehicle 5 can be measured using non-contact temperature detection means such as a thermo camera. it can.
  • a part having a high temperature and a part having a low temperature are confirmed.
  • the high temperature part is mainly around the B pillar 532 and the C pillar 533, and the low temperature part is near the front fender, front door, excluding the lower position of the B pillar 532 in the longitudinal direction L of the vehicle 5.
  • the reason why the temperatures around the B pillar 532 and the C pillar 533 increase is considered as follows.
  • an eddy current flows through the vehicle 5 due to the magnetic field generated from the induction heating coil 2.
  • the eddy current does not flow through the side glass where there is no outer plate 51. Therefore, the eddy current flowing through the ceiling portion and the door portion of the vehicle 5 flows through the ceiling portion and the door portion via the B pillar 532 and the C pillar 533 as the outer plate 51.
  • the periphery of the B pillar 532 and the periphery of the C pillar 533 are excessively heated.
  • the general part 52 such as a door and a fender, excluding the position below the B pillar 532, it is considered that eddy current does not easily pass and is not easily heated.
  • the first shielding sheet 3 ⁇ / b> A is disposed inside the induction heating coil 2 and outside the formation position of the B pillar 532 by the movement of the movable tip 41 of each robot 4.
  • the second shielding sheet 3 ⁇ / b> B is disposed inside the induction heating coil 2 and outside the location where the B pillar 532 is formed.
  • the reflective sheet 3 ⁇ / b> C is opposed to the general part 52 located below the B pillar 532 and the C pillar 533 in the longitudinal direction L of the vehicle 5. Therefore, it is arranged outside the induction heating coil 2.
  • the magnetic lines of force X to the vehicle 5 are weakened by the shielding sheets 3A and 3B at the formation positions of the B pillar 532 and the C pillar 533 where the shielding sheets 3A and 3B are arranged.
  • the eddy current which flows into the ceiling part and the door part (general part) 52 of the vehicle 5 decreases, and the periphery of the B pillar 532 and the periphery of the C pillar 533 are hardly heated.
  • the magnetic force lines X to the vehicle 5 are strengthened by the reflection sheet 3C.
  • the eddy current which flows into the door part 52 increases, and the door part 52 becomes easy to be heated.
  • the movable tip 41 of the robot 4 is moved, and the door part (general part) 52 on which the reflection sheet 3C is arranged is arranged near the front fender, near the front door, near the slide door (rear door), near the rear fender, It can be changed as appropriate.
  • the heating by the induction heating coil 2 is continued until the temperature measured by the temperature sensor 42 disposed on each of the shielding sheets 3A and 3B and the reflecting sheet 3C reaches a predetermined temperature. Further, when the temperature around the shielding sheets 3A and 3B and the surroundings of the reflection sheet 3C is measured by the temperature sensor 42, the movable tip 41 of each robot 4 is moved to move the shielding sheets 3A and 3B. The 3B and the reflection sheet 3C can be brought closer to the side of the vehicle 5 or away from the side of the vehicle 5. Thereafter, when the entire vehicle 5 is heated to a target temperature and the coating film is dried, heating by the induction heating coil 2 can be terminated.
  • the shielding sheets 3 ⁇ / b> A and 3 ⁇ / b> B and the reflection sheet 3 ⁇ / b> C can be fixed to the induction heating coil 2.
  • Each of the shielding sheets 3 ⁇ / b> A and 3 ⁇ / b> B and the reflecting sheet 3 ⁇ / b> C can be formed around the vehicle 5 in the front-rear direction L.
  • FIG. 7 shows a cross section in which the shielding sheets 3A and 3B are arranged on the right half, and a cross section in which the reflection sheet 3C is arranged on the left half.
  • the induction heating coil 2 can have various configurations other than being formed by looping around the longitudinal direction L of the vehicle 5.
  • the induction heating coil 2 can be formed so as to face the left and right side surfaces of the vehicle 5, the top surface of the vehicle 5, the front surface of the vehicle 5, and the rear surface of the vehicle 5, respectively.
  • the induction heating and drying apparatus 1 of this example includes an induction heating coil 2 and a magnetic shield sheet 3. Then, the method of using the magnetic shield sheet 3 is devised, and the magnetic shield sheet 3 is arranged on the inner side (the vehicle 5 side) with respect to the induction heating coil 2 or on the outer side (with the vehicle 5). Depending on whether they are arranged on the opposite side, the sheet is divided into the shielding sheets 3A and 3B and the reflecting sheet 3C.
  • the shielding sheets 3 ⁇ / b> A and 3 ⁇ / b> B are arranged inside the induction heating coil 2, and are arranged between the hanging outer plate portion 53 (the B pillar 532 and the C pillar 533) and the induction heating coil 2 in the outer plate 51 of the vehicle 5. Is done. In the hanging outer plate portion 53 of the outer plate 51 of the vehicle 5, the magnetic field generated when the induction heating coil 2 is energized does not directly hit the hanging outer plate portion 53 by the shielding sheets 3A and 3B. Will be blocked.
  • the flow passage cross-sectional area is reduced as compared with the general portion 52 of the outer plate 51, and the induction heating coil is used for the hanging outer plate portion 53 where eddy current tends to flow as compared with the general portion 52 of the outer plate 51.
  • the magnetic field by 2 can be prevented from being directly applied. Therefore, it is possible to prevent the hanging outer plate portion 53 from being heated excessively.
  • the reflection sheet 3 ⁇ / b> C is disposed outside the general portion 52 in the outer plate 51 of the vehicle 5 and outside the induction heating coil 2.
  • the general part 52 of the outer plate 51 of the vehicle 5 most of the magnetic field generated when the induction heating coil 2 is energized is reflected by the shielding sheets 3 ⁇ / b> A and 3 ⁇ / b> B and applied to the general part 52.
  • the general part 52 of the outer plate 51 can be easily subjected to a magnetic field by the induction heating coil 2. Therefore, the general part 52 can be easily heated.
  • the hanging outer plate portion 53 that is easily heated can be made difficult to heat, and the general portion 52 that is difficult to be heated can be easily heated.
  • the whole of the general part 52 of the outer plate 51 and the entire outer plate part 53 can be heated as uniformly as possible, and the entire outer plate 51 of the vehicle 5 can be dried as uniformly as possible.
  • Example 2 In this example, as shown in FIGS. 9 and 10, the magnetic shield sheet 3 shown in Example 1 is not used, and the heating to the hanging outer plate portion 53 due to the magnetic field generated by the induction heating coil 2 is suppressed.
  • the induction heating coil 2 of this example is formed so as to loop around the vehicle 5 in the front-rear direction L while being displaced in the front-rear direction L, as in the first embodiment.
  • the magnetic body of this example is formed from the annular magnetic body 3X which is a ring-shaped copper plate, and this annular magnetic body 3X is between the induction heating coil 2 and the outer plate
  • the annular magnetic body 3X is formed in a loop on the inner peripheral side of a part in the front-rear direction L of the induction heating coil 2 in order to flow an eddy current in a direction opposite to the eddy current generated by the induction heating coil 2.
  • the annular magnetic body 3X of this example is formed in a square ring shape according to a substantially square cross-sectional shape when the vehicle 5 is cut in the lateral direction.
  • the annular magnetic body 3X is disposed on the inner peripheral side of the induction heating coil 2 via an insulator or the like. More specifically, the annular magnetic body 3X is attached to the induction heating coil 2 by an insulator or the like disposed on the inner peripheral side of the induction heating coil 2 at a plurality of locations in the circumferential direction forming the loop.
  • the amount of eddy current flowing to the hanging outer plate portion 53 is changed by changing the thickness of the annular magnetic body 3X, the distance between the annular magnetic body 3X and the outer plate 51, and the distance between the annular magnetic body 3X and the induction heating coil 2. Can be adjusted.
  • the annular magnetic body 3X has a large width in the front-rear direction L on both sides facing the hanging outer plate portion 53 located on both sides of the vehicle 5, and upper and lower portions facing the upper and lower surfaces of the vehicle 5. The width in the front-rear direction L can be reduced.
  • a magnetic field in the opposite direction to the magnetic field generated by the induction heating coil 2 can be generated in the annular magnetic body 3X on the entire circumference of the portion facing the hanging outer plate portion 53.
  • the eddy current generated by the magnetic field generated by the induction heating coil 2 can be canceled by the eddy current generated by the annular magnetic body 3X on the entire circumference of the portion facing the hanging outer plate portion 53. Therefore, it is possible to prevent the entire circumference of the portion facing the hanging outer plate portion 53 from being heated as much as possible.
  • the general portion 52 of the outer plate 51 other than the hanging outer plate portion 53 can be heated by the eddy current generated by the induction heating coil 2 with respect to the entire circumference of the portion facing the hanging outer plate portion 53.
  • the whole of the general part 52 of the outer plate 51 and the entire outer plate part 53 can be heated as uniformly as possible, and the entire outer plate 51 of the vehicle 5 can be dried as uniformly as possible.
  • the other structure of the induction heating drying apparatus 1 is the same as that of the first embodiment, and the same effect as that of the first embodiment can be obtained.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Biotechnology (AREA)
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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
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  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Coating Apparatus (AREA)

Abstract

Un appareil de chauffage et de séchage par induction (1) est pourvu : d'une bobine de chauffage par induction (2), qui effectue un chauffage par induction depuis le côté extérieur d'une plaque extérieure (51) d'un véhicule (5), et sèche la surface de la plaque extérieure (51) ; et d'une feuille de blindage magnétique (3), qui a pour caractéristique de bloquer le magnétisme. La feuille de blindage magnétique (3) comporte : au niveau de parties de plaque extérieure intermédiaires (53), dont chacune est une partie de la plaque extérieure (51) du véhicule (5) et est positionnée entre des parties fenêtres (54), des feuilles de blindage (3A, 3B) qui sont respectivement disposées entre les parties de plaque extérieure intermédiaires (53) et la bobine de chauffage par induction (2) ; et au niveau de parties générales (52) de toute la plaque extérieure (51), lesdites parties générales étant différentes des parties de plaque extérieure intermédiaires (53), une feuille réfléchissante (3C) qui est disposée sur le côté extérieur de la bobine de chauffage par induction (2).
PCT/JP2012/059110 2011-06-22 2012-04-03 Appareil de chauffage et de séchage par induction WO2012176529A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013521492A JP5477514B2 (ja) 2011-06-22 2012-04-03 誘導加熱乾燥装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011138334 2011-06-22
JP2011-138334 2011-06-22

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WO2012176529A1 true WO2012176529A1 (fr) 2012-12-27

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Cited By (2)

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JP2015140989A (ja) * 2014-01-29 2015-08-03 富士電機株式会社 塗装乾燥装置および塗装乾燥方法
WO2016000826A3 (fr) * 2014-07-04 2016-03-03 Dürr Systems GmbH Procédé de peinture et installation de peinture pour la peinture d'éléments décoratifs

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