EP2023056A1 - Procédé de liaison pour un chauffage d'air et structure de celui-ci - Google Patents

Procédé de liaison pour un chauffage d'air et structure de celui-ci Download PDF

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Publication number
EP2023056A1
EP2023056A1 EP07014934A EP07014934A EP2023056A1 EP 2023056 A1 EP2023056 A1 EP 2023056A1 EP 07014934 A EP07014934 A EP 07014934A EP 07014934 A EP07014934 A EP 07014934A EP 2023056 A1 EP2023056 A1 EP 2023056A1
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EP
European Patent Office
Prior art keywords
heater
heat
heating
heat exchanger
joining structure
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP07014934A
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German (de)
English (en)
Inventor
Chia-Hsiung Wu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP07014934A priority Critical patent/EP2023056A1/fr
Publication of EP2023056A1 publication Critical patent/EP2023056A1/fr
Withdrawn legal-status Critical Current

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    • 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
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • 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
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
    • F24H9/1863—Arrangement or mounting of electric heating means
    • F24H9/1872—PTC resistor

Definitions

  • the present invention relates to a binding process for an air heater and structure thereof, and more particularly to a heater 10 having application in air, in which various units are fabricated in advance to enable subsequent binding and combining together in a modularized fashion, thereby providing quick assembly and saving manufacturing energy.
  • FIG. 1 which show assembly elements of a prior art heater 10, primarily comprising plate electrodes 11 joined to two sides of a heating element 1, wherein electric power is conducted through the plate electrodes 11 and flows into the heating element 1. Heat quantity produced by the heating element 1 is then indirectly dissipated through heat dissipating fins 12 via the plate electrodes 11. Heat exchange is carried out with air flowing past the heat dissipating fins 12, thereby achieving the objective of heating the air.
  • the binding assembly method of prior art involves placing a cover 14 on a work platform 16, and a baking device 15 is fitted interior of the cover 14, thereby forming a baking environment space 140.
  • Structural elements including the heating elements 1, the plate electrodes 11 and the heat dissipating fins 12 are correspondingly arranged in an orderly disposition on the work platform 16 in the environment space 140 in accordance with requirements for the number of elements and corresponding relationship.
  • the binding process involves applying a binding material to each adjoining contact surface, after which, two side jigs 13 exert a clamping pressure force P. While exerting the clamping pressure, the baking device 15 emits heat radiation waves R which dry the binding material.
  • the drying method involves the heat radiation waves R gradually channeling through the outer surface to the core of each of the elements, and has the following shortcomings:
  • a primary objective of the present invention is to provide a binding process for an air heater and structure thereof, which primarily comprises main units making up a heater, wherein each of the units are separately fabricated in advance.
  • the units include heat exchanger units and a heating unit, and a substantially high binding force is achieved after assembling the units.
  • the present invention enables rapid assembly production, and an electric conduction test is carried out at the same time as a binding process. Heat quantity produced by the electric conduction test is used as catalytic energy for a solidification reaction of a binding material, thereby avoiding energy wastage of conventional baking methods, and enabling rapid binding and production.
  • a second objective of the present invention is to provide a secure fixing insulating jacket located at a conducting electrode end of each of the heat exchanger units, which insulates heat dissipating fins from electrical property, and provides buffering of the mechanical force produced when inserting/pulling out the heat exchanger units, as well as functioning to provide salt and physical tolerance.
  • a third objective of the present invention is to cover the exterior of the entire heater, after assembling the various units, with an insulating protective membrane that functions to provide physical tolerance or chemical resistance, or to facilitate creating an electrical blockage with other surrounding structural members.
  • the usage environment such as application in a car body, enables creating an electrical blockage with other neighboring components within the car body.
  • a fourth objective of the present invention is to use the heating unit as a heat source during the binding process and simultaneous implementation of the electric conduction test, whereby heat from the electric conduction test is directly transmitted to the binding interfaces by planar transmission, thereby enabling producing a uniform binding state at each binding unit area.
  • a fifth objective of the present invention lies in the binding process of the various component members, wherein during implementation of the electric conduction test, if there are flawed electrical component members, then there is enough time to be able to dismantle and take out the good components before solidification of the binding material has occurred, thereby avoiding wastage of materials, equipment and man-hours.
  • a sixth objective of the present invention is to interpose the heat exchanger units with heat conducting insulating plates to insulate the heat dissipating fins from electrical property, wherein the insulating plate is made from mineral material, such as aluminum oxide, provided with high mechanical strength.
  • a seventh objective of the present invention is to enable the heater to be assembled from a variable number of units, thereby enabling a different number of the units to be chosen to quickly accommodate different power production systems, and swiftly accommodate market demand, thus eliminating the need to consider a safety stock of production line components.
  • An eighth objective of the present invention is to use jigs to provide clamping pressure during the manufacturing process, wherein the jigs need not be made from high temperature resistant material, thereby reducing cost of the jigs, or the jigs can be made from thermal resistant material to prevent loss of heat.
  • a ninth objective of the present invention is to substantially reduce production line assembly working space during implementation of the present invention.
  • a tenth objective of the present invention is to completely eliminate energy use of baking methods during the assembly production process, without the threat of scalding the hands of workers, and provide an operating space that is of open type that facilitates handling.
  • FIG. 3 which shows an embodiment of the present invention, primarily structured to comprise a heating unit 2 and reciprocal heat exchanger units 3, which are units fabricated in advance and constitute a heater 10, wherein the heat exchanger units 3 are respectively assembled from plate electrodes 31 and terminals 4 that respectively extend from an end thereof.
  • Each of the heat exchanger units 3 comprises fins 32 that serve to exchange heat with the air, and a periphery is disguised with a shaped frame 33.
  • the heating unit 2 comprises any plate-type heating elements 21, and the heating elements 21 can be positive temperature coefficient ceramic resistor heating strips, a series assembly of a plurality of which forms the plate-type heating unit 2.
  • FIG. 4 which shows the heater 10 of the present invention assembled by bonding together the independent prefabricated heating unit 2 and heat exchanger units 3, wherein binding material is applied in advance to corresponding joining surfaces of the heat exchanger units 3 and heating unit 2, after which clamping pressure P from jigs (not shown in the drawings) on two outer sides presses and fixes the structure of the heater 10.
  • the units are able to withstand the substantially high pressure from the clamping pressure P, thereby enabling contact surfaces between the heat exchanger units 3 and the heating unit 2 to withstand a substantially high clamping pressure, and a substantially densely pressed binding filling of the binding material (not shown in the drawings) is able to be press filled between the heat exchanger units 3 and the heating unit 2.
  • the heating unit 2 produces heat waves, which directly effect thermo catalysis of the binding material of the adjoining surfaces between the heat exchanger units 3 and the heating unit 2, thereby causing the binding material to quickly solidify. Accordingly, simultaneous implementation of the electric conduction test in the present invention not only enables prompt detection of whether components are working normally or not, but also enables using the heat quantity produced during the detection process to directly accelerate solidification of the binding material. Moreover, heat is uniformly produced at the contact surfaces between the heat exchanger units 3 and the heating unit 2, thereby enabling an equal solidification state of the binding material to be formed on the surface areas between the heat exchanger units 3 and heating unit 2.
  • the jigs do not need to be subjected to a heat effect, and only apply mechanical pressure, thus, the jigs need not be made from high temperature resistant material, though using material having heat resistant properties enables preventing the heating unit 2 from absorbing heat waves and being damaged during the electric conduction test.
  • the combinatory procedure of the embodiment of the present invention can be implemented on the working production line of any platform, and does not need a special baking environment.
  • the combinatory procedure does not obstruct space, and after assembling the heat exchanger units 3 and the heating unit 2 to form a heating entity 100, then the present invention can combine a plurality of the heat exchanger units 3 and the corresponding number of heating units 2 using a juxtaposed arrangement or any stacking arrangement according to requirements for the number of units of the single heating entity 100, thereby increasing the quantity of heating units 2 and enabling modifying hot working power of the heater 10.
  • the present invention thus enables fast production to quickly accommodate different power requirements.
  • the entire heating unit 2 simultaneously generates heat, thus, the bonding contact surfaces simultaneously receive a heat effect, thereby eliminating time for thermal equilibrium, and the resulting quick binding solidification improves production rate.
  • Each of the heat exchanger units 3 is made up from the heat dissipating fins 32 that serve as the functional main bodies, and outer periphery of the heat dissipating fins 32 is fixedly secured with the shaped frame 33.
  • Any soldering method or binding process can be used as the joining method between the heat dissipating fins 32 and the shaped frame 33.
  • the binding process can use normal temperature solidified binding material, with the condition that it is provides heat conduction after completing the binding process.
  • the quantity of heat produced is able to accelerate solidifying rate of the binding material. If the binding material demands a large quantity of heat to catalyze, then time for testing electric conduction can be extended, and accordingly produce a relatively larger quantity of heat to satisfy acceleration requirements for solidifying the binding material.
  • FIG. 5 which shows the heating unit 2 comprising the plate heating elements 21, wherein front and rear surfaces of each of the heating elements 21 is provided with an electrical conducting surface 210, thereby enabling electric current to pass therethrough.
  • Each of the heating elements 21 is an electric heating element of any material, and is basically a solid body of substantially high mechanical strength, such as a positive temperature coefficient (PTC) ceramic resistance strip, outer periphery of which is framed with a frame 22.
  • the frame 22 is made from material having durable physical properties, interior of which is configured with embedding cavities 220 that enable the heating elements 21 to respectively embed therein.
  • PTC positive temperature coefficient
  • the heating elements 21 can adopt a dry assembly method to embed into the embedding cavities 220, or binding material can be applied to the embedding interfaces, thereby fixedly bonding the heating elements 21 in the frame body 22.
  • Implementation of the frame body 22 enables defining and assembling the single flat type heating unit 2 from a plurality of the heating elements 21.
  • FIG. 6 which shows the heat exchanger unit 3, wherein a heat conduction insulating plate 5 is disposed between and separates the plate electrode 31 and the heat dissipating fins 32.
  • the heat conduction insulating plate 5 separating the plate electrode 31 from the heat dissipating fins 32 enables insulating the heat dissipating fins 32 from electrical property.
  • the shaped frame 33 fitted on the outer periphery of the heat dissipating fins 32 fixedly secures structure thereof, and a solidification binding process can be similarly adopted between the shaped frame 33, the insulating plate 5 and the plate electrode 31, using normal temperature or any method to achieve the binding, which in principle must be completed in advance to enable the insulating plate 5 to be strongly interposed between the plate electrode 31 and the heat dissipating fins 32 or the shaped frame 33 enclosing thereof, thereby forming the single heat exchanger unit 3.
  • FIG. 7 which shows the heat exchanger units 3 respectively structured to comprise the heat dissipating fins 32 and the shaped frame 33 joined to the plate electrode 31 by means of the heat conduction insulating plate 5.
  • the terminals 4 respectively extend from one side of the plate electrodes 31, and the insulating plates 5 effectively insulate the plate electrodes 31 from the heat dissipating fins 32, thereby enabling forming electrical insulation.
  • the terminals 4 are exposed, and basically must be fixed attachments disposed in a separate arrangement according to position of an electric plug.
  • One end of each of the plate electrodes 31 is provided with a bent portion 310 formed from a bent surface 311.
  • the present invention further comprises the independent terminals 4 each indirectly joined to the bent surface 311.
  • a folded plate 41 is located at an inner portion of each of the terminals 4 corresponding to the bent portion 310, and the folded plate 41 embraces the bent surface 311, with any rivet connection or stamping method being used to achieve mechanical joining thereof. After joining, insulating material is packed between the bent portion 310 and a corresponding end surface 330 of the shaped frame 33, thereby realizing electrical insulation between the bent portion 310 and the end surface 330.
  • the present invention further uses insulating jackets 6 to serve as electrical insulation for the end surfaces 330; and mechanical clamping force of the insulating jackets 6 extending over the bent portions 310 is used to fixedly clamp the bent portions 310, thereby mechanically fixing the terminals 4.
  • the insulating jacket 6 comprises two hook plates 62 that clamp on a side 331 of each of the end surfaces 330.
  • a clamp groove 61 extends from one side of each of the insulating jackets 6, and the clamp grooves 61 respectively clamp on corresponding edges of the bent portions 310.
  • such a clamping configuration assembles corresponding surfaces of the plate electrodes 31 and the insulating plates 5 with the shaped frame 33, and outwardly facing surfaces of the plate electrodes 31 are respectively electrically connected to the electrical conducting surfaces 210 of the heating elements 21 of the heating unit 2 to establish electrical conduction therewith.
  • Implementation of the aforementioned insulating jackets 6 enables gaps formed by the insulating jackets 6 to separate electrical property at one end of the terminals 4, and thickness of the insulating jackets 6 enables extending creepage distance between the terminals 4 and the heat dissipating fins 32, and elimination thereof. Moreover, existence of the insulating jackets 6 increases ability to tolerate salt, that is, during system application, provides good chemical resistance or physical tolerance.
  • FIG. 8 which show one of the insulating jackets 6 clamped to the end surface 330 of the shaped frame 33 and the clamp groove 61 clamped on the side edge of the bent portion 310, accordingly, clamping of the terminal 4 by the clamp groove 61 fixes one side of the terminal 4.
  • Another side of the plate electrode 31 extends from the bent portion 310 to an underside of the insulating plate 5, and is fixed at two points.
  • the insulating jacket 6 is a long body that forms another axial fixing, thereby providing a three dimensional fixing installation for the terminal 4.
  • the gaps of the insulating jackets 6 provide electrical insulation for the heat dissipating fins 32 or the shaped frames 33, and further provide a mechanical buffering force when inserting or pulling out the terminals 4 from a power source.
  • a high mechanical binding force is provided with between each of the component members, including the plate electrode 31, the insulating plate 5, the insulating jacket 6 and the terminal 4 that comprise the completed heat exchanger unit 3.
  • each of these component members can be manufactured using standardized production, thereby quickly fabricating the heat exchanger units 3 or the heating units 2, and after manufacturing the units, the assembly method depicted in FIG. 4 is used to quickly produce the heater 10.
  • a protective membrane can be attached to the exterior surfaces of related metal surfaces of the aforementioned completed heater 10, thereby providing electrical insulation, and even achieving resistance from chemical corrosion.
  • the present invention is able to be easily assembled to a general production line platform. Moreover, the present invention is able to avoid burdening other heat energy sources during the binding process, and dispenses with the use of covering equipment, without the threat of scalding the limbs and trunk of a worker during the operating process. Furthermore, the present invention does not cause thermal pollution, and operating space is of open type that does not hinder assembly, the limbs and operation thereof.
  • the binding solidification process and simultaneous implementation of the electric conduction test not only enables valid parameters to be obtained, moreover, heat waves produced during the electric conduction test can also be used to directly serve as a catalyst for the solidification process, thereby reducing the binding solidification time and increasing high performance productivity.
  • the solidification binding state enables uniform bonding of each unit area of the joining surfaces, thereby enabling the bonding strength to have uniform degree of rigidity.
  • the independently completed units assembled in advance are single entities, which are able to resist substantially high pressure from jigs during the course of assembling the heating units 2 , and enables closely knit joining of the electric and heat conducting interfaces.
  • each of the units can be independently mass pre-produced using standardized production, thereby eliminating the need to consider an inventory of components. Accordingly, the present invention is provided with multiple advantages in production implementation.

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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)
  • Resistance Heating (AREA)
EP07014934A 2007-07-30 2007-07-30 Procédé de liaison pour un chauffage d'air et structure de celui-ci Withdrawn EP2023056A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07014934A EP2023056A1 (fr) 2007-07-30 2007-07-30 Procédé de liaison pour un chauffage d'air et structure de celui-ci

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07014934A EP2023056A1 (fr) 2007-07-30 2007-07-30 Procédé de liaison pour un chauffage d'air et structure de celui-ci

Publications (1)

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EP2023056A1 true EP2023056A1 (fr) 2009-02-11

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EP07014934A Withdrawn EP2023056A1 (fr) 2007-07-30 2007-07-30 Procédé de liaison pour un chauffage d'air et structure de celui-ci

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2190256A1 (fr) * 2008-11-20 2010-05-26 Behr France Rouffach SAS Caloporteur
EP2190257A1 (fr) * 2008-11-20 2010-05-26 Behr France Rouffach SAS Caloporteur
EP2730854A1 (fr) * 2012-11-12 2014-05-14 Betacera Inc. Chauffage du compartiment intérieur de voiture
EP2731399A1 (fr) * 2012-11-12 2014-05-14 Betacera Inc. Élément chauffant isolé
EP3073801A1 (fr) * 2015-03-26 2016-09-28 Betacera Inc. Dispositif chauffant formé d'un seul tenant
KR20200108956A (ko) * 2019-03-11 2020-09-22 삼성디스플레이 주식회사 표시 장치용 벤딩 장치

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2033709A (en) * 1978-10-21 1980-05-21 Eichenauer F Electrical resistance heating element
US5192853A (en) * 1991-10-22 1993-03-09 Yeh Yuan Chang Heating set having positive temperatue coefficient thermistor elements adhesively connected to heat radiator devices
US20040055699A1 (en) * 2002-06-28 2004-03-25 Smith Faye C. Method for accelerated bondline curing
EP1452357A1 (fr) * 2003-02-28 2004-09-01 Catem GmbH & Co.KG Appareil de chauffage électrique avec plusieurs zones de chauffage
EP1515587A1 (fr) 2003-09-11 2005-03-16 Catem GmbH & Co. KG Dispositif de chauffage électrique muni d'un élément chauffant scellé
US20050194371A1 (en) * 1998-10-29 2005-09-08 Applera Corporation Sample tray heater module
DE102006021730A1 (de) * 2005-05-20 2006-11-23 Modine Korea Llc., Asan PTC-Stabanordnung und diese enthaltender Vorwärmer
EP1768457A1 (fr) * 2005-09-23 2007-03-28 Catem GmbH & Co.KG Element chauffant d'un dispositif de chauffage

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2033709A (en) * 1978-10-21 1980-05-21 Eichenauer F Electrical resistance heating element
US5192853A (en) * 1991-10-22 1993-03-09 Yeh Yuan Chang Heating set having positive temperatue coefficient thermistor elements adhesively connected to heat radiator devices
US20050194371A1 (en) * 1998-10-29 2005-09-08 Applera Corporation Sample tray heater module
US20040055699A1 (en) * 2002-06-28 2004-03-25 Smith Faye C. Method for accelerated bondline curing
EP1452357A1 (fr) * 2003-02-28 2004-09-01 Catem GmbH & Co.KG Appareil de chauffage électrique avec plusieurs zones de chauffage
EP1515587A1 (fr) 2003-09-11 2005-03-16 Catem GmbH & Co. KG Dispositif de chauffage électrique muni d'un élément chauffant scellé
DE102006021730A1 (de) * 2005-05-20 2006-11-23 Modine Korea Llc., Asan PTC-Stabanordnung und diese enthaltender Vorwärmer
EP1768457A1 (fr) * 2005-09-23 2007-03-28 Catem GmbH & Co.KG Element chauffant d'un dispositif de chauffage

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2190256A1 (fr) * 2008-11-20 2010-05-26 Behr France Rouffach SAS Caloporteur
EP2190257A1 (fr) * 2008-11-20 2010-05-26 Behr France Rouffach SAS Caloporteur
EP2190258A1 (fr) * 2008-11-20 2010-05-26 Behr France Rouffach SAS Caloporteur
EP2190256B1 (fr) 2008-11-20 2016-11-02 Mahle Behr France Rouffach S.A.S Caloporteur
EP2730854A1 (fr) * 2012-11-12 2014-05-14 Betacera Inc. Chauffage du compartiment intérieur de voiture
EP2731399A1 (fr) * 2012-11-12 2014-05-14 Betacera Inc. Élément chauffant isolé
EP3073801A1 (fr) * 2015-03-26 2016-09-28 Betacera Inc. Dispositif chauffant formé d'un seul tenant
KR20200108956A (ko) * 2019-03-11 2020-09-22 삼성디스플레이 주식회사 표시 장치용 벤딩 장치

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