[go: up one dir, main page]

US20020011484A1 - Electric heating device, especially for use in motor vehicles - Google Patents

Electric heating device, especially for use in motor vehicles Download PDF

Info

Publication number
US20020011484A1
US20020011484A1 US09/861,872 US86187201A US2002011484A1 US 20020011484 A1 US20020011484 A1 US 20020011484A1 US 86187201 A US86187201 A US 86187201A US 2002011484 A1 US2002011484 A1 US 2002011484A1
Authority
US
United States
Prior art keywords
electric heating
heating device
control device
circuit board
printed circuit
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.)
Granted
Application number
US09/861,872
Other versions
US6392207B2 (en
Inventor
Klaus Beetz
Franz Bohlender
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.)
Catem GmbH and Co KG
Original Assignee
Catem GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8168820&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US20020011484(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Catem GmbH and Co KG filed Critical Catem GmbH and Co KG
Assigned to CATEM GMBH & CO. KG reassignment CATEM GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BEETZ, KLAUS, BOHLENDER, FRANZ
Publication of US20020011484A1 publication Critical patent/US20020011484A1/en
Application granted granted Critical
Publication of US6392207B2 publication Critical patent/US6392207B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
    • B60H1/2225—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters arrangements of electric heaters for heating air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
    • B60H1/2218—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters controlling the operation of electric heaters
    • 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
    • F24H3/0429—For vehicles
    • 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
    • F24H3/0429—For vehicles
    • F24H3/0441—Interfaces between the electrodes of a resistive heating element and the power supply means
    • 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
    • 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
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/023—Industrial applications
    • H05B1/0236—Industrial applications for vehicles
    • 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
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
    • H05B3/50—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material heating conductor arranged in metal tubes, the radiating surface having heat-conducting fins
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/02—Heaters using heating elements having a positive temperature coefficient
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
    • H05K1/0203—Cooling of mounted components
    • H05K1/0204—Cooling of mounted components using means for thermal conduction connection in the thickness direction of the substrate

Definitions

  • the present invention relates to an electric heating device for heating air, which is especially suitable for use as a supplementary electric heating in motor vehicles.
  • heating devices or radiators are used for heating the vehicle interior and/or the engine. On the one hand, they are used when the engine is started, as long as the engine does not yet provide sufficient heat energy. On the other hand, especially consumption-optimized internal combustion engines make it necessary to use such heating devices in motor vehicles.
  • heating devices are, however, not restricted to the field of automotive vehicles. These heating devices are also suitable to be used for a great variety of other purposes, e.g. in the field of domestic installations (room air conditioning), industrial plants and the like.
  • EP-A2-0 901 311 discloses an electric heating means for motor vehicles.
  • the heating device described comprises a plurality of heating elements which are combined so as to form a heating block.
  • the heating block and a control device for controlling the heating elements are held in a common frame.
  • the control device defines a structural unit together with the heating block held in the frame.
  • the control device comprises a power electronics with electronic switches which are provided with cooling bodies.
  • the control device is arranged in such a way that the main part of an air current to be heated flows through the heating block and that a boundary portion of said air current is applied to the control device for the purpose of cooling.
  • This known heating device is disadvantageous insofar as the air current flowing over the control device reduces the total effectiveness of the heating power.
  • the part of the air current to be heated which passed the heating block and the part which flowed past the control device have different output temperatures.
  • the output temperature of the air current which was applied to the control device is markedly lower than that of the main current. This results especially in an inhomogeneous air discharge temperature.
  • the heating device will be less effective when air having a lower temperature flows in.
  • the air to be heated is not applied to the control device as a whole, but the amount of air passing through and used for cooling the power electronics can be controlled through window openings.
  • the amount of air passing through and used for cooling the power electronics can be controlled through window openings.
  • means for influencing the air current are provided within the area between opposed window openings.
  • the air current can be conducted such that it is optimally applied to the cooling elements of the power electronics so that the maximum possible heating of the cooling air current will be achieved.
  • a particularly advantageous variant can be accomplished by means of U-shaped cooling elements in the case of which additional air-conducting elements can be provided which project between the legs of the U-shaped cooling elements.
  • the cooling air can be heated still further, when it is also conducted over the components of the control device.
  • the printed circuit board of the control device is preferably equipped with components on only one side thereof. A particularly simple application of air to the components can be achieved in this way. In addition, such an arrangement of the components is also particularly advantageous for reasons of production engineering.
  • the printed circuit board is arranged at right angles to the plane of the frame. This kind of arrangement permits, on the one hand, a simple application of air to the components. On the other hand, a small construction depth of the electric heating device can be achieved in this way.
  • the control device can be fixed in a particularly simple manner when the electric connection lugs of the heating elements, which project into the box of the lateral bar, are used for such fixing.
  • spring elements which are complementary to the connection lugs can be provided on the printed circuit board.
  • This embodiment permits, with the aid of the same means, electric contacting, e.g. for conducting the control currents for the heating elements, as well as mechanical fixing. This has the effect that the amount of material required, for an electric heating device according to the present invention and the investment in the production process of such an electric heating device will be reduced substantially.
  • FIG. 1 a and 1 b show a top view and a side view of an electric heating device according to the present invention
  • FIG. 2 shows a detail view of the printed circuit board of the control device, said printed circuit board being equipped with components
  • FIG. 3 shows a detail view of the box-shaped lateral bar and of the control device which is adapted to be inserted in said lateral bar
  • FIG. 4 shows a further detail view of the box-shaped lateral bar and of the control device which is adapted to be inserted in said lateral bar.
  • FIG. 5 a, 5 b and 5 c show detail views of a further embodiment of the present Invention
  • FIG. 6 shows a simplified perspective detail view of a realization of a further embodiment of the control device according to the present invention.
  • FIG. 7 a , 7 b and 7 c show various detail views of the structural design of the control device according to FIG. 6.
  • FIG. 1 a shows a side view of the electric heating device 1 according to the present invention.
  • FIG. 1 b shows a top view of the electric heating device 1 .
  • the electric heating device 1 includes a heating block comprising a plurality of heating elements 2 which are arranged in layers or which are stacked. Each heating element 2 consists of a resistance heating element and of radiators or heat conducting plates which are arranged adjacent said resistance heating element.
  • the heating elements used as resistance heating elements are preferably PTC elements.
  • the heating block comprising the heating elements 2 is held in a frame. This frame consists of opposed longitudinal bars 3 and lateral bars 4 and 5 which are arranged at right angles thereto. The bars of the frame are produced either from metal or from plastic material.
  • the two lateral bars 4 and 5 differ in the embodiment shown in FIG. 1.
  • the lateral bar 5 is implemented as a box which is open on one side thereof.
  • the opening of this box-shaped lateral bar 5 is located on the lateral-bar side located opposite the heating elements 2 .
  • This box is adapted to have inserted therein a control device which controls the heat output of the individual heating elements 2 by controlling the current supplied to said heating elements 2 .
  • the open side of the box-shaped lateral bar 5 is closed by means of a plug-on or clip-on cover after insertion of the control circuit.
  • the printed circuit board 10 of the control device is preferably arranged at right angles to the plane of the frame, but a parallel arrangement is possible as well (not shown).
  • the heating device 1 has current supplied thereto via two connecting pins 8 . These connecting pins are implemented such that they can easily conduct the heating currents demanded. In the embodiment shown in FIG. 1, the connecting pins 8 project on the side on which the box-shaped lateral bar 5 is open.
  • the lateral bar 5 has window openings 7 on the sides located in the plane of the frame. These window openings are arranged such that they, too, are positioned in the air current to be heated. Cooling elements 6 are arranged between the opposed window openings 7 , said cooling elements 6 belonging to the power electronics components of the control circuit. When the heating device is in operation, air to be heated flows not only through the heating block consisting of the heating elements 2 but also through the window openings.
  • the amount of air flowing past the cooling elements 6 can be determined by selecting the size of the window openings 7 .
  • the air flow rate is adjusted such that the differences in temperature between the air flowing through the heating block and the air flowing past the cooling bodies 6 are as small as possible. Only if the temperature of the air flowing through the window openings 7 approaches the temperature of the air flowing through the heating block as closely as possible, the heating device will be operated with the highest possible efficiency.
  • FIG. 2 shows a detail view of the control device arranged within the box-shaped lateral bar.
  • a printed circuit board 10 has provided thereon a control electronics 12 in addition to the power electronics components 11 .
  • the control electronics 12 determines the amount of current which is to be delivered by the power electronics components 11 , especially the power transistors, to the respective associated heating element 2 .
  • the amount of current is supplied to the control device from one of the connecting pins 8 via a conductive rail 13 .
  • the output of the power transistor 11 is fixedly soldered to the printed circuit board 10 and connected to the spring element 14 which is associated with this transistor.
  • connection lugs 15 can be seen in FIG. 3 and 4 .
  • connection lugs 15 are passed through the printed circuit board 10 in FIG. 2 and inserted into the spring elements 14 .
  • Such an arrangement permits fast mechanical fixing of the printed circuit board 10 with the control electronics in the frame. Simultaneously, electric contacting with the respective heating elements is effected.
  • the printed circuit board is provided with components on only one side thereof.
  • the printed circuit board is provided with power transistors 11 which are horizontally secured thereto.
  • the printed circuit board is provided with power transistors 11 which are horizontally secured thereto.
  • three heating stages and, consequently, three power transistors are provided.
  • Each power transistor 11 is fixedly soldered to the printed circuit board 10 at the output terminal thereof.
  • connection lug protrudes beyond the transistor, said connection lug having a cooling element 6 secured thereto. It will be advantageous to connect the cooling element 6 to the heating element in non-conductive manner.
  • the cooling element 6 is provided with cooling fins, which are located in a plane that extends at right angles to the printed circuit board.
  • the cooling fins are, in addition, arranged on the non-equipped side of the printed circuit board. Only one leg of the cooling element 6 projects onto the equipped side of the printed circuit board and is connected to the connection lug of the transistor 11 so as to dissipate the heat produced by said transistor.
  • the cooling-element leg connected to the transistor 11 projects through an opening in the printed circuit board 10 onto the equipped side of the printed circuit board 10 . It may, however, also project beyond the edge of the printed circuit board so that an opening in said printed circuit board 10 can be dispensed with.
  • a corresponding arrangement of the components comprising the transistor 11 , the spring element 14 and the cooling element 6 is provided for each heating stage on the printed circuit board.
  • FIG. 3 shows a detail view of the box-shaped lateral bar 5 and of the control circuit which is adapted to be inserted in said lateral bar.
  • One side of the lateral bar 5 is connected to the longitudinal bars 3 and the heating block with the heating elements 2 .
  • the window-shaped openings 7 can be seen through which the air to be heated passes.
  • connection lugs 15 and one connecting pin 8 a represent the positive connection for all heating elements 2 .
  • This figure additionally shows a perspective view of the control device 5 a which is adapted to be inserted into the box of the lateral bar 5 .
  • the control device 5 a is inserted into the lateral bar 5 with the side facing said lateral bar.
  • each cooling element 6 complementary window openings 7 are provided in the surface of the lateral bar 5 . This has the effect that, when the heating device is in operation, each cooling element has effectively supplied an air current thereto.
  • a further connecting pin 8 b can be seen on the side facing away from the lateral bar.
  • This connecting pin serves as an electric ground pole when current is supplied.
  • the connecting pin 8 b is connected to the conductive bar 13 which is shown in FIG. 2 and 4 and which supplies the heating current to individual heating stages. Each individual one of the heating stages draws via its power transistor 11 up to approx. 40 amperes from the amount of current supplied via the conductive rail 13 .
  • FIG. 4 shows a further perspective detail view of the lateral bar 5 and of the control circuit which is adapted to be inserted into the box-shaped opening of said lateral bar 5 .
  • two of the window openings 7 can be seen on the surface of the lateral bar 5 .
  • These window openings are arranged in such a way that they are positioned above and below the cooling elements 6 when the control circuit has been inserted into the lateral bar 5 .
  • connection lugs 15 of the heating elements 2 can be seen.
  • One respective connection lug 15 is provided for each heating stage.
  • control circuit which is adapted to be inserted into the lateral bar 5 is shown.
  • the structural design of the control circuit corresponds to the control circuit described in connection with FIG. 2.
  • FIG. 5 shows a further embodiment of the present invention.
  • FIG. 5 a, 5 b and 5 c show different detail views in which the embodiment specially differs from the preceding embodiment described.
  • FIG. 5 a shows a slightly modified design of the lateral bar 5 .
  • the arrangement of the window openings 7 corresponds to the above-described embodiment.
  • walls are provided between the window openings 7 in the lateral bar 5 , as far as such a provision of walls is possible without impeding the insertion of the control circuit in the lateral bar 5 .
  • All the intermediate spaces which are located on the upper side between the windows and the side facing the heating element are closed by additional walls 18 . In this way, the air is prevented from flowing around aimlessly when the heating device is in operation.
  • FIG. 5 a and 5 b show in detail how the air is conducted between the window openings 7 .
  • an air-conducting element 17 is inserted into the areas located between the window openings 7 .
  • a Y-shaped spoiler element permits a better flow of air around the cooling fins of the U-shaped cooling element 6 .
  • the respective cooling fins of the cooling element 6 are arranged adjacent the window openings 7 .
  • FIG. 5 b the printed circuit board 10 with the power transistor 11 is additionally indicated.
  • FIG. 5 c shows a corresponding structural design of the cooling element 6 .
  • the cooling body 6 according to the present embodiment is arranged in such a way that the U-shape has its lower side arranged parallel to the printed circuit board 10 .
  • the Y-shaped air-conducting element 17 is arranged in such a way that it projects from the lateral-bar side facing the heating elements in the direction of the control device.
  • complementary air-conducting elements can be arranged on the lateral boundaries between the opposed window openings 7 .
  • the width b 1 of one cooling fin is approx. 3 mm, whereas the distance b 2 between the cooling fins is slightly smaller, approx. 2.5 mm.
  • the cooling body is preferably produced from aluminium or copper.
  • FIG. 6 and 7 a further embodiment of a control device according to the present invention is shown.
  • the cooling bodies 20 according to this embodiment are connected in a different way to the power transistors.
  • the power transistors 11 have cooling vanes formed thereon, which project beyond the power transistor on one side thereof.
  • the cooling bodies of the above-described embodiments are secured to these cooling vanes.
  • the cooling vanes of the power transistors are soldered to the printed circuit board.
  • the cooling bodies are connected to the transistor by means of a clipped connection.
  • the cooling bodies 20 of this embodiment have a special structural design.
  • the cooling fins of the cooling body 20 have a non-symmetrical structural design.
  • the preferably U-shaped cooling body has on one side thereof a smaller number of fins than is normally the case so as to permit the clip 21 to engage.
  • the clip preferably engages the power transistor 19 and the cooling body 20 from outside and secures the cooling body 20 to the control device and the transistor 19 in this way.
  • This embodiment is particularly suitable for SMD-type power transistors. It is a construction-dependent property of SMD-type transistors that they are not provided with cooling vanes to which the cooling body can be secured.
  • the printed circuit board has a hole provided therein and this hole has preferably a diameter of approx. 7.5 mm.
  • the cooling body 20 is provided with pin 20 a on the lower side thereof.
  • this pin projects in a direction opposite to the direction of the individual cooling fins.
  • the diameter of the pin 20 a is preferably approx. 7 mm.
  • the pin 20 a formed on the cooling body 20 projects through the hole in the printed circuit board 10 and contacts the transistor 19 directly.
  • FIG. 7 a shows a top view of the printed circuit board 10 having the power transistor 11 provided thereon.
  • the power transistor 11 is arranged on the boundary of the printed circuit board 10 so that the clip 21 used for fixing the cooling body 20 can be fastened easily.
  • the printed circuit board may be provided with a small indentation at the location at which the clip 21 engages the printed circuit board from above and from below so that said clip 21 will not necessitate a larger construction depth of the printed circuit board 10 .
  • the depth of this indentation corresponds approximately to the thickness of the clip 21 in this area.
  • the transistor 19 is preferably arranged in such a way that connection contacts 22 point towards the opposite edge of the printed circuit board 10 .
  • FIG. 7 b shows a side view.
  • FIG. 7 c shows a sectional view along the sectional line A-A in FIG. 7 b.
  • FIG. 7 c shows that the cooling body 20 and the spring 21 are geometrically adapted to one another in such a way that correctly positioned fixing with an optimum pressure application point is guaranteed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Control Of Resistance Heating (AREA)
  • Central Heating Systems (AREA)
  • Resistance Heating (AREA)
  • Saccharide Compounds (AREA)

Abstract

The present invention relates to an electric heating device which is especially conceived as a heating device for use in automotive vehicles. A plurality of heating elements, which are stacked so as to define a heating block, form together with a control device a structural unit. For this purpose, the control device is accommodated in a lateral bar of the frame by means of which the heating elements are held together. The air to be heated flows through the heating block as well as through windows provided in the lateral bar, past cooling elements which are respectively connected to the power-electronics components of the control device.

Description

  • The present invention relates to an electric heating device for heating air, which is especially suitable for use as a supplementary electric heating in motor vehicles. [0001]
  • In motor vehicles heating devices or radiators are used for heating the vehicle interior and/or the engine. On the one hand, they are used when the engine is started, as long as the engine does not yet provide sufficient heat energy. On the other hand, especially consumption-optimized internal combustion engines make it necessary to use such heating devices in motor vehicles. [0002]
  • The use of such heating devices is, however, not restricted to the field of automotive vehicles. These heating devices are also suitable to be used for a great variety of other purposes, e.g. in the field of domestic installations (room air conditioning), industrial plants and the like. [0003]
  • EP-A2-0 901 311 discloses an electric heating means for motor vehicles. The heating device described comprises a plurality of heating elements which are combined so as to form a heating block. The heating block and a control device for controlling the heating elements are held in a common frame. In this way, the control device defines a structural unit together with the heating block held in the frame. The control device comprises a power electronics with electronic switches which are provided with cooling bodies. The control device is arranged in such a way that the main part of an air current to be heated flows through the heating block and that a boundary portion of said air current is applied to the control device for the purpose of cooling. [0004]
  • This known heating device is disadvantageous insofar as the air current flowing over the control device reduces the total effectiveness of the heating power. The part of the air current to be heated which passed the heating block and the part which flowed past the control device have different output temperatures. The output temperature of the air current which was applied to the control device is markedly lower than that of the main current. This results especially in an inhomogeneous air discharge temperature. In addition, the heating device will be less effective when air having a lower temperature flows in. [0005]
  • It is therefore the object of the present invention to provide an electric heating device by means of which more effective heating can be achieved. [0006]
  • This object is achieved by the features of claim [0007] 1.
  • According to the present invention, the air to be heated is not applied to the control device as a whole, but the amount of air passing through and used for cooling the power electronics can be controlled through window openings. In this way, an adaptation to the amount of air passing through the heating block is possible so that both amounts of air will have substantially the same output temperature. In this way, the effectiveness of the whole heating device will not be reduced by an air current which is diverted for cooling the control electronics. [0008]
  • According to an advantageous embodiment of the present invention, means for influencing the air current are provided within the area between opposed window openings. In this way, the air current can be conducted such that it is optimally applied to the cooling elements of the power electronics so that the maximum possible heating of the cooling air current will be achieved. A particularly advantageous variant can be accomplished by means of U-shaped cooling elements in the case of which additional air-conducting elements can be provided which project between the legs of the U-shaped cooling elements. [0009]
  • The cooling air can be heated still further, when it is also conducted over the components of the control device. For this purpose, the printed circuit board of the control device is preferably equipped with components on only one side thereof. A particularly simple application of air to the components can be achieved in this way. In addition, such an arrangement of the components is also particularly advantageous for reasons of production engineering. [0010]
  • In accordance with an advantageous embodiment of the present invention, the printed circuit board is arranged at right angles to the plane of the frame. This kind of arrangement permits, on the one hand, a simple application of air to the components. On the other hand, a small construction depth of the electric heating device can be achieved in this way. [0011]
  • The control device can be fixed in a particularly simple manner when the electric connection lugs of the heating elements, which project into the box of the lateral bar, are used for such fixing. For this purpose, spring elements which are complementary to the connection lugs can be provided on the printed circuit board. This embodiment permits, with the aid of the same means, electric contacting, e.g. for conducting the control currents for the heating elements, as well as mechanical fixing. This has the effect that the amount of material required, for an electric heating device according to the present invention and the investment in the production process of such an electric heating device will be reduced substantially. [0012]
  • Further advantageous embodiments of the present invention are disclosed in the subclaims.[0013]
  • In the following, the present invention will be described with reference to the drawings enclosed, in which [0014]
  • FIG. 1[0015] a and 1 b show a top view and a side view of an electric heating device according to the present invention,
  • FIG. 2 shows a detail view of the printed circuit board of the control device, said printed circuit board being equipped with components, [0016]
  • FIG. 3 shows a detail view of the box-shaped lateral bar and of the control device which is adapted to be inserted in said lateral bar, [0017]
  • FIG. 4 shows a further detail view of the box-shaped lateral bar and of the control device which is adapted to be inserted in said lateral bar. [0018]
  • [0019]
  • FIG. 5[0020] a, 5 b and 5 c show detail views of a further embodiment of the present Invention,
  • FIG. 6 shows a simplified perspective detail view of a realization of a further embodiment of the control device according to the present invention, and [0021]
  • FIG. 7[0022] a, 7 b and 7 c show various detail views of the structural design of the control device according to FIG. 6.
  • FIG. 1[0023] a shows a side view of the electric heating device 1 according to the present invention. FIG. 1b shows a top view of the electric heating device 1. The electric heating device 1 includes a heating block comprising a plurality of heating elements 2 which are arranged in layers or which are stacked. Each heating element 2 consists of a resistance heating element and of radiators or heat conducting plates which are arranged adjacent said resistance heating element. The heating elements used as resistance heating elements are preferably PTC elements. The heating block comprising the heating elements 2 is held in a frame. This frame consists of opposed longitudinal bars 3 and lateral bars 4 and 5 which are arranged at right angles thereto. The bars of the frame are produced either from metal or from plastic material.
  • Whereas the [0024] longitudinal bars 3 have a substantially symmetrical structural design, the two lateral bars 4 and 5 differ in the embodiment shown in FIG. 1.
  • In contrast to the [0025] lateral bar 4, the lateral bar 5 is implemented as a box which is open on one side thereof. The opening of this box-shaped lateral bar 5 is located on the lateral-bar side located opposite the heating elements 2. This box is adapted to have inserted therein a control device which controls the heat output of the individual heating elements 2 by controlling the current supplied to said heating elements 2. The open side of the box-shaped lateral bar 5 is closed by means of a plug-on or clip-on cover after insertion of the control circuit.
  • After insertion, the printed [0026] circuit board 10 of the control device is preferably arranged at right angles to the plane of the frame, but a parallel arrangement is possible as well (not shown).
  • The heating device [0027] 1 has current supplied thereto via two connecting pins 8. These connecting pins are implemented such that they can easily conduct the heating currents demanded. In the embodiment shown in FIG. 1, the connecting pins 8 project on the side on which the box-shaped lateral bar 5 is open.
  • On the same side a further plug base is provided for controlling the control device; this plug base is not shown in FIG. 1. [0028]
  • The [0029] lateral bar 5 has window openings 7 on the sides located in the plane of the frame. These window openings are arranged such that they, too, are positioned in the air current to be heated. Cooling elements 6 are arranged between the opposed window openings 7, said cooling elements 6 belonging to the power electronics components of the control circuit. When the heating device is in operation, air to be heated flows not only through the heating block consisting of the heating elements 2 but also through the window openings.
  • The amount of air flowing past the [0030] cooling elements 6 can be determined by selecting the size of the window openings 7. According to the present invention, the air flow rate is adjusted such that the differences in temperature between the air flowing through the heating block and the air flowing past the cooling bodies 6 are as small as possible. Only if the temperature of the air flowing through the window openings 7 approaches the temperature of the air flowing through the heating block as closely as possible, the heating device will be operated with the highest possible efficiency.
  • FIG. 2 shows a detail view of the control device arranged within the box-shaped lateral bar. A printed [0031] circuit board 10 has provided thereon a control electronics 12 in addition to the power electronics components 11. The control electronics 12 determines the amount of current which is to be delivered by the power electronics components 11, especially the power transistors, to the respective associated heating element 2. The amount of current is supplied to the control device from one of the connecting pins 8 via a conductive rail 13. The output of the power transistor 11 is fixedly soldered to the printed circuit board 10 and connected to the spring element 14 which is associated with this transistor.
  • The [0032] spring elements 14 are arranged on the printed circuit board in such a way that, when the control device is attached to the lateral bars 5, they are connected to connection lugs of the heating elements. Such connection lugs 15 can be seen in FIG. 3 and 4.
  • In the embodiment shown, the connection lugs [0033] 15 are passed through the printed circuit board 10 in FIG. 2 and inserted into the spring elements 14. Such an arrangement permits fast mechanical fixing of the printed circuit board 10 with the control electronics in the frame. Simultaneously, electric contacting with the respective heating elements is effected.
  • The printed circuit board is provided with components on only one side thereof. In accordance with the number of heating stages, the printed circuit board is provided with [0034] power transistors 11 which are horizontally secured thereto. In the embodiment shown, three heating stages and, consequently, three power transistors are provided. Each power transistor 11 is fixedly soldered to the printed circuit board 10 at the output terminal thereof.
  • A connection lug protrudes beyond the transistor, said connection lug having a [0035] cooling element 6 secured thereto. It will be advantageous to connect the cooling element 6 to the heating element in non-conductive manner.
  • The [0036] cooling element 6 is provided with cooling fins, which are located in a plane that extends at right angles to the printed circuit board. In the embodiment shown, the cooling fins are, in addition, arranged on the non-equipped side of the printed circuit board. Only one leg of the cooling element 6 projects onto the equipped side of the printed circuit board and is connected to the connection lug of the transistor 11 so as to dissipate the heat produced by said transistor. In the embodiment shown, the cooling-element leg connected to the transistor 11 projects through an opening in the printed circuit board 10 onto the equipped side of the printed circuit board 10. It may, however, also project beyond the edge of the printed circuit board so that an opening in said printed circuit board 10 can be dispensed with.
  • A corresponding arrangement of the components comprising the [0037] transistor 11, the spring element 14 and the cooling element 6 is provided for each heating stage on the printed circuit board.
  • FIG. 3 shows a detail view of the box-shaped [0038] lateral bar 5 and of the control circuit which is adapted to be inserted in said lateral bar. One side of the lateral bar 5 is connected to the longitudinal bars 3 and the heating block with the heating elements 2. On the upper surface of the lateral bar 5, the window-shaped openings 7 can be seen through which the air to be heated passes.
  • Within the box-shaped [0039] lateral bar 5 three connection lugs 15 and one connecting pin 8 a can be seen. This connecting pin represents the positive connection for all heating elements 2. This figure additionally shows a perspective view of the control device 5 a which is adapted to be inserted into the box of the lateral bar 5. The control device 5 a is inserted into the lateral bar 5 with the side facing said lateral bar.
  • On the side of the [0040] control device 5 a facing the lateral bar 5, the lower surface of the printed circuit board 10 can be seen. Three cooling elements 6 project beyond this printed circuit board 10. Each of these cooling elements or cooling plates is associated with one of the power transistors 11 of a heating stage.
  • For each [0041] cooling element 6, complementary window openings 7 are provided in the surface of the lateral bar 5. This has the effect that, when the heating device is in operation, each cooling element has effectively supplied an air current thereto.
  • On the side facing away from the lateral bar, a further connecting [0042] pin 8 b can be seen. This connecting pin serves as an electric ground pole when current is supplied. The connecting pin 8 b is connected to the conductive bar 13 which is shown in FIG. 2 and 4 and which supplies the heating current to individual heating stages. Each individual one of the heating stages draws via its power transistor 11 up to approx. 40 amperes from the amount of current supplied via the conductive rail 13.
  • FIG. 4 shows a further perspective detail view of the [0043] lateral bar 5 and of the control circuit which is adapted to be inserted into the box-shaped opening of said lateral bar 5.
  • In the upper area of FIG. 4, two of the [0044] window openings 7 can be seen on the surface of the lateral bar 5. These window openings are arranged in such a way that they are positioned above and below the cooling elements 6 when the control circuit has been inserted into the lateral bar 5.
  • Within the box-shaped opening of the [0045] lateral bar 5, the connection lugs 15 of the heating elements 2 can be seen. One respective connection lug 15 is provided for each heating stage.
  • In the lower half of FIG. 4, the control circuit which is adapted to be inserted into the [0046] lateral bar 5 is shown. In order to show the structural design more clearly, only one of the power transistors 11 is provided with a cooling element 6 in this case. As for the rest, the structural design of the control circuit corresponds to the control circuit described in connection with FIG. 2.
  • FIG. 5 shows a further embodiment of the present invention. FIG. 5[0047] a, 5 b and 5 c show different detail views in which the embodiment specially differs from the preceding embodiment described.
  • FIG. 5[0048] a shows a slightly modified design of the lateral bar 5. The arrangement of the window openings 7 corresponds to the above-described embodiment. In order to influence the air current more accurately, walls are provided between the window openings 7 in the lateral bar 5, as far as such a provision of walls is possible without impeding the insertion of the control circuit in the lateral bar 5. All the intermediate spaces which are located on the upper side between the windows and the side facing the heating element are closed by additional walls 18. In this way, the air is prevented from flowing around aimlessly when the heating device is in operation.
  • FIG. 5[0049] a and 5 b show in detail how the air is conducted between the window openings 7. For accurately conducting the air, an air-conducting element 17 is inserted into the areas located between the window openings 7. As can be seen in FIG. 5b, a Y-shaped spoiler element permits a better flow of air around the cooling fins of the U-shaped cooling element 6. The respective cooling fins of the cooling element 6 are arranged adjacent the window openings 7.
  • In FIG. 5[0050] b the printed circuit board 10 with the power transistor 11 is additionally indicated.
  • FIG. 5[0051] c shows a corresponding structural design of the cooling element 6. Whereas in the above-described embodiment the substantially U-shaped cooling element 6 rests with its U-shaped side perpendicularly on the printed circuit board, the cooling body 6 according to the present embodiment is arranged in such a way that the U-shape has its lower side arranged parallel to the printed circuit board 10. Accordingly, the Y-shaped air-conducting element 17 is arranged in such a way that it projects from the lateral-bar side facing the heating elements in the direction of the control device. When a cooling body 6 according to the first embodiment is used, complementary air-conducting elements can be arranged on the lateral boundaries between the opposed window openings 7.
  • In the embodiment shown in FIG. 5[0052] c, the width b1 of one cooling fin is approx. 3 mm, whereas the distance b2 between the cooling fins is slightly smaller, approx. 2.5 mm. The cooling body is preferably produced from aluminium or copper.
  • In FIG. 6 and [0053] 7, a further embodiment of a control device according to the present invention is shown. In this embodiment, especially the structural design of the power transistors and of the cooling bodies differs from that of the preceding embodiments. The cooling bodies 20 according to this embodiment are connected in a different way to the power transistors. In the preceding embodiments, the power transistors 11 have cooling vanes formed thereon, which project beyond the power transistor on one side thereof. The cooling bodies of the above-described embodiments are secured to these cooling vanes. The cooling vanes of the power transistors are soldered to the printed circuit board. In the embodiment described in the following, the cooling bodies are connected to the transistor by means of a clipped connection. In FIG. 6 and 7 it is shown that the cooling bodies 20 of this embodiment have a special structural design. In order to permit a clip 21 to engage, the cooling fins of the cooling body 20 have a non-symmetrical structural design. For this purpose, the preferably U-shaped cooling body has on one side thereof a smaller number of fins than is normally the case so as to permit the clip 21 to engage. The clip preferably engages the power transistor 19 and the cooling body 20 from outside and secures the cooling body 20 to the control device and the transistor 19 in this way.
  • This embodiment is particularly suitable for SMD-type power transistors. It is a construction-dependent property of SMD-type transistors that they are not provided with cooling vanes to which the cooling body can be secured. In order to be able to connect the cooling body to the lower surface of the [0054] power transistor 19, the printed circuit board has a hole provided therein and this hole has preferably a diameter of approx. 7.5 mm.
  • Accordingly, the cooling [0055] body 20 is provided with pin 20 a on the lower side thereof. In the embodiment shown, this pin projects in a direction opposite to the direction of the individual cooling fins. The diameter of the pin 20 a is preferably approx. 7 mm.
  • The [0056] pin 20 a formed on the cooling body 20 projects through the hole in the printed circuit board 10 and contacts the transistor 19 directly.
  • This structural design is shown in FIG. 7[0057] a, 7 b and 7 c in detail. FIG. 7a shows a top view of the printed circuit board 10 having the power transistor 11 provided thereon. The power transistor 11 is arranged on the boundary of the printed circuit board 10 so that the clip 21 used for fixing the cooling body 20 can be fastened easily. The printed circuit board may be provided with a small indentation at the location at which the clip 21 engages the printed circuit board from above and from below so that said clip 21 will not necessitate a larger construction depth of the printed circuit board 10. Preferably, the depth of this indentation corresponds approximately to the thickness of the clip 21 in this area. The transistor 19 is preferably arranged in such a way that connection contacts 22 point towards the opposite edge of the printed circuit board 10.
  • FIG. 7[0058] b shows a side view. FIG. 7c shows a sectional view along the sectional line A-A in FIG. 7b. FIG. 7c shows that the cooling body 20 and the spring 21 are geometrically adapted to one another in such a way that correctly positioned fixing with an optimum pressure application point is guaranteed.

Claims (13)

1. An electric heating device, especially for use as a supplementary electric heating for motor vehicles, comprising:
a plurality of heating elements (2) which are combined so as to form a heating block, said heating block being held in a rectangular frame (3, 4, 5), and
a control device for controlling the heating elements (2), said control device defining a structural unit with the heating block held in the frame (3, 4, 5) and being provided with power transistors (11) which are arranged on a printed circuit board (10) and which are each provided with a cooling element (6), wherein
the frame is defined by opposed longitudinal bars (3) and lateral bars (4, 5) arranged at right angles to said longitudinal bars (3),
at least one of said lateral bars (5) is implemented as a box which is open on one side thereof and which is adapted to have the control device inserted therein,
window openings (7) are provided in said lateral bar (5) and
the cooling elements (6) of the power transistors (11) are located between respective opposed window openings (7) in the inserted condition of the control device.
2. An electric heating device according to claim 1, wherein means (17) for influencing the air current are provided between said opposed window openings (7).
3. An electric heating device according to claim 1, wherein the cooling elements (6) are each U-shaped and wherein the respective opposed legs of the cooling elements (6) are arranged adjacent the window openings (7) in the inserted condition of the control device.
4. An electric heating device according to claim 3, wherein air-conducting means (17) are provided between said opposed window openings (7), said air-conducting means projecting between the legs of the U-shaped cooling elements (6).
5. An electric heating device according to one of the claims 1, wherein each cooling element (20) has a pin (20 a) which, extending through an opening provided in the printed circuit board (10), establishes a connection between said cooling element (20) and the transistor (19).
6. An electric heating device according to one of the claims 1, wherein each of the cooling elements (20) is secured in position by means of a spring (21).
7. An electric heating device according to one of the claims 2, wherein the window openings (7) and/or the means (17) for influencing the air current are implemented such that air can flow around components of the control device which are located on the printed circuit board (10).
8. An electric heating device according to one of the claims 1, wherein the printed circuit board (10) of the control device is equipped with components on only one side thereof.
9. An electric heating device according to one of the claims 1, wherein the printed circuit board (10) is arranged at right angles to the plane of the frame and is implemented such that its length corresponds substantially to that of the lateral bar (5).
10. An electric heating device according to one of the claims 1, wherein the control device is adapted to be fixed in the lateral bar (5) by means of electric connection lugs (15) which project from the heating elements (2) into the interior of said lateral bar (5).
11. An electric heating device according to claim 10, wherein spring elements (14) for receiving the connection lugs (15) are provided on the printed circuit board (10), said spring elements (14) being complementary to the connection lugs (15).
12. An electric heating device according to one of the claims 1, wherein the open side of the box-shaped lateral bar (5) can be closed by means of a plug-on or clip-on cover.
12. An electric heating device according to one of the claims 1 to 11, wherein the open side of the box-shaped lateral bar (5) can be closed by means of a plug-on or clip-on cover.
US09/861,872 2000-05-23 2001-05-21 Electric heating device, especially for use in motor vehicles Expired - Lifetime US6392207B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP00111120.2 2000-05-23
EP00111120A EP1157867B1 (en) 2000-05-23 2000-05-23 Electrical heating device, in particular for use in vehicles

Publications (2)

Publication Number Publication Date
US20020011484A1 true US20020011484A1 (en) 2002-01-31
US6392207B2 US6392207B2 (en) 2002-05-21

Family

ID=8168820

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/861,872 Expired - Lifetime US6392207B2 (en) 2000-05-23 2001-05-21 Electric heating device, especially for use in motor vehicles

Country Status (6)

Country Link
US (1) US6392207B2 (en)
EP (5) EP1157867B1 (en)
JP (3) JP3481217B2 (en)
AT (4) ATE229892T1 (en)
DE (4) DE50000968D1 (en)
ES (4) ES2187411T3 (en)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1395098A1 (en) * 2002-09-02 2004-03-03 Catem GmbH & Co.KG Electrical heating for vehicle
US20040169027A1 (en) * 2003-02-28 2004-09-02 Catem Gmbh & Co. Kg Electric heating device with heating zones
US20040256377A1 (en) * 2002-10-30 2004-12-23 Catem Gmbh & Co.Kg Electric heating device comprising a plurality of heating elements
US20060289462A1 (en) * 2003-04-25 2006-12-28 Ngk Spark Plug Co Ltd Air heater unit for vehicle and air heater system for vehicle
US20080053981A1 (en) * 2006-08-30 2008-03-06 Mitsubishi Heavy Industries, Ltd. Heat-transer-medium heating apparatus and vehicular air-conditioning
US20090020619A1 (en) * 2007-07-18 2009-01-22 Catem Gmbh & Co. Kg Electrical Auxiliary Heater
US20090020515A1 (en) * 2007-07-20 2009-01-22 Catem Gmbh & Co. Kg Electric Heating Device, in Particular for Motor Vehicles
US20120193339A1 (en) * 2010-04-14 2012-08-02 Mitsubishi Heavy Industries, Ltd. Heating-medium heating unit and vehicle air conditioner using the same
US20120205362A1 (en) * 2011-02-16 2012-08-16 Hans-Peter Etzkorn Electric Heater and Assembly Therefor
US20130000108A1 (en) * 2010-10-08 2013-01-03 Eberspacher Catem Gmbh & Co. Kg Electrical heating device and method for the production thereof
DE102011089539B3 (en) * 2011-12-22 2013-04-25 Behr-Hella Thermocontrol Gmbh Device for controlling e.g. electrical auxiliary heater for electric vehicle, has printed circuit board fixed with heat coupling surface through connection pins for retaining thermal coupling of component to be cooled with coupling surface
US20140026759A1 (en) * 2007-10-04 2014-01-30 Nestec S.A. Heating device with an integrated thermoblock for a beverage preparation machine
US20140097179A1 (en) * 2012-10-05 2014-04-10 Borgwarner Beru Systems Gmbh Electrical heating device
US20150117847A1 (en) * 2012-05-02 2015-04-30 Uwe Reinholz Heating device for a vehicle, and method of cooling an electronic control unit of the heating device
US20150156820A1 (en) * 2013-12-03 2015-06-04 MAHLE Behr France Rouffach S.A.S. Electric heater
US9398641B2 (en) 2011-12-22 2016-07-19 Eberspächer Catem Gmbh & Co. Kg Electrical heating device, particularly for a motor vehicle
US9937772B2 (en) 2013-10-21 2018-04-10 Mahle International Gmbh Heater
US20180326817A1 (en) * 2017-05-12 2018-11-15 Mahle International Gmbh Electric heater
US20190084374A1 (en) * 2016-01-28 2019-03-21 Jahwa Electronics Co., Ltd. Independently-controlled ptc heater and device
US20200307354A1 (en) * 2017-12-19 2020-10-01 Valeo Systemes Thermiques Power supply module for heating radiator and heating radiator fitted with such a module
US20220266658A1 (en) * 2021-02-19 2022-08-25 Mahle International Gmbh Electrical adapter
US20220305884A1 (en) * 2019-09-24 2022-09-29 Audi Ag Method for climate control
US20230074572A1 (en) * 2020-02-28 2023-03-09 Siemens Aktiengesellschaft Electronic Module, Method for Producing an Electronic Module, and Industrial Plant
DE102010061550B4 (en) 2010-12-23 2023-06-07 Webasto Ag Electric Vehicle Heater

Families Citing this family (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10061458B4 (en) * 2000-12-09 2005-12-15 Eichenauer Heizelemente Gmbh & Co. Kg Method and device for controlling a vehicle auxiliary heating
DE10102671C2 (en) * 2001-01-17 2003-12-24 Eichenauer Heizelemente Gmbh Electric heating for a motor vehicle
DE10147074A1 (en) * 2001-09-25 2003-05-08 Beru Ag Method for operating a multi-stage electric heater consisting of several heating elements
DE10208103A1 (en) 2002-02-26 2003-09-11 Beru Ag Electric air heating device, in particular for a motor vehicle
FR2838599B1 (en) * 2002-04-11 2004-08-06 Valeo Climatisation ELECTRIC HEATING DEVICE, PARTICULARLY FOR VEHICLE HEATING AND AIR CONDITIONING APPARATUS
FR2849806B1 (en) * 2003-01-10 2006-03-17 Valeo Climatisation HEATING DEVICE FOR MOTOR VEHICLE
FR2855933B1 (en) * 2003-06-06 2006-06-09 Valeo Climatisation ELECTRIC HEATING DEVICE, IN PARTICULAR FOR A MOTOR VEHICLE
EP2395226B1 (en) * 2003-07-28 2013-07-17 Phillips and Temro Industries Inc. Controller for air intake heater
US20060196484A1 (en) * 2003-07-28 2006-09-07 Gill Alan P Capture and burn air heater
EP1503153B1 (en) * 2003-07-31 2011-03-30 Behr France Rouffach SAS Device for heat exchange
FR2859349B1 (en) * 2003-08-29 2006-12-01 Valeo Climatisation ELECTRIC HEATING ELEMENT FOR VENTILATION, HEATING AND / OR AIR CONDITIONING APPARATUS
EP1521499A1 (en) * 2003-10-02 2005-04-06 Behr France S.A.R.L. Connector assembly for heating assembly with PTC-elements, particularly for motor vehicle
ES2308052T3 (en) * 2004-01-28 2008-12-01 CATEM GMBH & CO.KG CONTROL UNIT WITH THERMAL PROTECTOR AND ELECTRIC HEATING DEVICE INCLUDING SUCH CONTROL UNIT.
DE502004005781D1 (en) * 2004-02-10 2008-02-07 Catem Gmbh & Co Kg Electric heater for low construction heights
FR2868737B1 (en) * 2004-04-13 2008-08-08 Valeo Climatisation Sa HEATING ASSEMBLY FOR A HEATING, VENTILATION AND / OR AIR CONDITIONING INSTALLATION OF A VEHICLE
ES2309428T3 (en) * 2004-08-31 2008-12-16 CATEM GMBH & CO. KG SUPPLEMENTARY ELECTRIC WARMING DEVICE FOR MOTOR VEHICLES WITH CURRENT SAFETY.
EP1630923B1 (en) * 2004-08-31 2007-10-17 Catem GmbH & Co. KG Control circuit for a plurality of electrical loads with a safeguard for the semiconductor switches
KR101115952B1 (en) * 2005-02-04 2012-02-21 한라공조주식회사 Sources of electricity supply structure of an electric heater
DE202005002115U1 (en) * 2005-02-09 2006-06-14 Catem Gmbh & Co. Kg Electric heating device, in particular for use in motor vehicles
KR101115953B1 (en) * 2005-02-21 2012-03-13 자화전자 주식회사 Electric heater
KR100588416B1 (en) 2005-03-23 2006-06-09 동아전기부품 주식회사 Housing for automotive auxiliary heating system
EP1747920B2 (en) * 2005-07-26 2018-07-11 Mahle Behr France Rouffach S.A.S Vehicle Heater with PTC-Element
US8975561B2 (en) * 2005-12-20 2015-03-10 Borgwarner Beru Systems Gmbh Electric heating apparatus, especially for motor vehicles
FR2895204B1 (en) * 2005-12-21 2008-06-06 Valeo Systemes Thermiques OPTIMIZATION OF A HEATING DEVICE
US8003922B2 (en) 2006-02-17 2011-08-23 Phillips & Temro Industries Inc. Solid state switch with over-temperature and over-current protection
US8981264B2 (en) * 2006-02-17 2015-03-17 Phillips & Temro Industries Inc. Solid state switch
EP1872986B1 (en) * 2006-06-28 2012-01-18 Eberspächer catem GmbH & Co. KG Electrical heating device
DE102006055872B3 (en) * 2006-11-23 2008-03-13 Eichenauer Heizelemente Gmbh & Co. Kg Electrical heater for automobile, has lamellas with elongated holes exhibiting longitudinal edges that clamp heating rods, where portion of elongated holes in each lamella is longer than breadth of heating rods
EP1928214B1 (en) * 2006-11-30 2009-05-27 Eberspächer catem GmbH & Co. KG Electrical heating device
DE202007001079U1 (en) * 2007-01-18 2008-05-21 Eichenauer Heizelemente Gmbh & Co. Kg Automotive heater
DE202007006207U1 (en) 2007-04-27 2008-09-04 Catem Gmbh & Co. Kg Device for conditioning a vehicle interior
FR2922817B1 (en) * 2007-10-31 2012-12-21 Valeo Systemes Thermiques DEVICE FOR ELECTRICALLY HEATING AN AIR FLOW CIRCULATING INSIDE A VENTILATION, HEATING AND / OR AIR CONDITIONING INSTALLATION OF A MOTOR VEHICLE
EP2109346B1 (en) * 2008-04-09 2014-07-30 Behr France Rouffach SAS Electrical device for heating, in particular an interior of a motor vehicle
KR100958021B1 (en) 2008-07-07 2010-05-17 갑을오토텍 유한회사 PPM controlled high capacity PTC heater
EP2168794B1 (en) * 2008-09-26 2012-11-14 Behr GmbH & Co. KG Electrical heating system and method for infinite adjustment of an electrical heating device
KR101076136B1 (en) 2008-12-05 2011-10-21 현대자동차주식회사 Pulse Width Modulation Control Type High Capacity PTC Heater
EP2236330B1 (en) 2009-03-30 2011-09-28 Eberspächer catem GmbH & Co. KG Electric heater for a motor vehicle
DE202009005582U1 (en) 2009-04-14 2010-09-02 Eberspächer Catem Gmbh & Co. Kg Electric heater
EP2315493B1 (en) 2009-10-21 2017-05-10 Mahle Behr France Rouffach S.A.S Heating device, in particular for a motor vehicle air conditioning device
EP2330865B1 (en) * 2009-12-03 2015-10-21 Eberspächer catem GmbH & Co. KG Electric heating device
FR2954469B1 (en) * 2009-12-23 2014-09-12 Valeo Systemes Thermiques METHOD FOR ASSEMBLING AN ELECTRICAL HEATING DEVICE AND CORRESPONDING ELECTIC HEATING DEVICE
FR2954468B1 (en) * 2009-12-23 2012-06-08 Valeo Systemes Thermiques ELECTRIC HEATING DEVICE AND CORRESPONDING ASSEMBLY METHOD
FR2954467B1 (en) * 2009-12-23 2014-09-12 Valeo Systemes Thermiques ELECTRICAL HEATING DEVICE AND CORRESPONDING HEATING APPARATUS
EP2371589B1 (en) * 2010-03-26 2012-09-05 Eberspächer catem GmbH & Co. KG Electric heating device
EP2371588B1 (en) * 2010-03-26 2012-10-10 Eberspächer catem GmbH & Co. KG Electric heating device
KR101219967B1 (en) * 2010-09-28 2013-01-08 현대자동차주식회사 Car heating system using PTC heater and method thereof
FR2971973A1 (en) * 2011-02-25 2012-08-31 Renault Sa ELECTRICAL RADIATOR WITHOUT OVERHEATING FOR MOTOR VEHICLE
EP2626647B1 (en) 2011-03-30 2014-06-11 Eberspächer catem GmbH & Co. KG Method for producing a plate element comprising a circuit board
DE102012025445A1 (en) 2011-12-22 2013-06-27 Eberspächer Catem Gmbh & Co. Kg Electrical heating device for motor car, has waving ribs arranged transverse to passage direction of medium, cooling body sealingly inserted into connector housing, and sealing element bridges gap between body and contours of housing
JP2013180690A (en) * 2012-03-02 2013-09-12 Mitsubishi Heavy Ind Ltd Heat medium heating device and vehicle air conditioner including the same
EP2730854B1 (en) * 2012-11-12 2015-06-03 Betacera Inc. Car interior compartment heater
JP2014225348A (en) * 2013-05-15 2014-12-04 三菱重工オートモーティブサーマルシステムズ株式会社 Heat medium heating device, method of manufacturing the same, and vehicular air conditioner
FR3006246B1 (en) * 2013-05-30 2016-03-04 Valeo Systemes Thermiques HOMOGENEOUSING GRID OF AIR FLOW AND CORRESPONDING HEATING APPARATUS
EP2853837A1 (en) * 2013-09-25 2015-04-01 Behr France Rouffach SAS Electric heater
EP2884817B1 (en) 2013-12-13 2017-08-30 Eberspächer catem GmbH & Co. KG Electric heating device and method for its production
EP2897230B1 (en) 2014-01-21 2019-05-15 Eberspächer catem GmbH & Co. KG Electrical connection in particular for an electrical heating system of a vehicle
EP2966934B1 (en) 2014-07-08 2016-09-14 Eberspächer catem GmbH & Co. KG Control device for an electric heating device and method for its production
EP3051223B1 (en) * 2015-01-28 2017-11-08 Mahle International GmbH Electric heating device
EP3096095B1 (en) 2015-05-19 2018-04-18 MAHLE International GmbH Electric heating device
FR3050692B1 (en) * 2016-04-29 2019-06-07 Valeo Systemes Thermiques DEVICE FOR HEATING AN AIR FLOW CIRCULATING IN A VENTILATION, HEATING AND / OR AIR CONDITIONING INSTALLATION OF A MOTOR VEHICLE
FR3050693B1 (en) * 2016-04-29 2019-04-05 Valeo Systemes Thermiques DEVICE FOR HEATING AN AIR FLOW CIRCULATING IN A VENTILATION, HEATING AND / OR AIR CONDITIONING INSTALLATION OF A MOTOR VEHICLE
US10077745B2 (en) 2016-05-26 2018-09-18 Phillips & Temro Industries Inc. Intake air heating system for a vehicle
US10221817B2 (en) 2016-05-26 2019-03-05 Phillips & Temro Industries Inc. Intake air heating system for a vehicle
CN106304621A (en) * 2016-10-26 2017-01-04 邦彦技术股份有限公司 The heating means of a kind of pcb board and device, pcb board assembly and electronic equipment
DE102016224296A1 (en) 2016-12-06 2018-06-07 Eberspächer Catem Gmbh & Co. Kg ELECTRIC HEATING DEVICE
DE102017101498B4 (en) 2017-01-26 2023-06-22 Infineon Technologies Ag Sensor circuit and method for compensating for temperature changes
DE102017206487B4 (en) 2017-04-18 2020-07-02 Eberspächer Catem Gmbh & Co. Kg PTC heating element and method for its production
FR3065856B1 (en) * 2017-04-28 2021-02-19 Valeo Systemes Thermiques ELECTRIC HEATING DEVICE FOR MOTOR VEHICLES
DE102017208253A1 (en) 2017-05-16 2018-11-22 Eberspächer Catem Gmbh & Co. Kg Method for producing a PTC heating element
DE102017209990A1 (en) 2017-06-13 2018-12-13 Eberspächer Catem Gmbh & Co. Kg Electric heater and PTC heating element for such
FR3076892B1 (en) * 2018-01-12 2022-11-11 Valeo Systemes Thermiques POWER SUPPLY MODULE FOR HEATING RADIATOR AND HEATING RADIATOR EQUIPPED WITH SUCH MODULE
KR102601609B1 (en) * 2019-03-15 2023-11-14 한온시스템 주식회사 Cooling water heater and method for controlling heat of cooling water heater
DE102019204401B4 (en) * 2019-03-28 2026-01-08 Eberspächer Catem Gmbh & Co. Kg PTC heating element and electric heating device comprising such a
KR102612972B1 (en) * 2019-10-11 2023-12-13 한온시스템 주식회사 Cooling water heater and method for measuring current of cooling water heater
DE102020105866B4 (en) 2020-03-04 2024-10-31 Audi Aktiengesellschaft Electric heating device for a motor vehicle interior and method for operating an electric heating device
DE102020117366A1 (en) 2020-07-01 2022-01-05 Eberspächer Catem Gmbh & Co. Kg Electrical control device, in particular for an electrical heating device
DE102020117481B4 (en) 2020-07-02 2025-01-30 Audi Aktiengesellschaft heating device for a motor vehicle
CN114675625B (en) * 2022-03-21 2024-11-19 潍柴动力股份有限公司 Controller control method and device
EP4468817A1 (en) 2023-05-26 2024-11-27 MAHLE International GmbH Ptc heating device

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60100457A (en) * 1983-11-04 1985-06-04 Matsushita Electric Ind Co Ltd Heat sink device of electronic component
DE3509073C2 (en) * 1984-03-24 1995-04-20 Volkswagen Ag Electric heating, in particular for motor vehicles
FR2639764B1 (en) * 1988-11-25 1994-06-10 Nec Corp STRUCTURE FOR COOLING HEAT GENERATING COMPONENTS
DE4238364A1 (en) * 1992-11-13 1994-05-26 Behr Gmbh & Co Device for cooling drive components and for heating a passenger compartment of an electric vehicle
US5471034A (en) * 1993-03-17 1995-11-28 Texas Instruments Incorporated Heater apparatus and process for heating a fluid stream with PTC heating elements electrically connected in series
DE19532992A1 (en) * 1995-09-07 1997-03-13 Telefunken Microelectron Single sided electronic component mounting conductor plate device, e.g. surface mounted device
US5990459A (en) 1996-10-15 1999-11-23 David + Baader - DBK System for controlling a plurality of resistive heating elements
DE19645095A1 (en) * 1996-11-01 1998-05-07 Ego Elektro Geraetebau Gmbh Heating
US6178292B1 (en) * 1997-02-06 2001-01-23 Denso Corporation Core unit of heat exchanger having electric heater
DE19738318C5 (en) 1997-09-02 2014-10-30 Behr Gmbh & Co. Kg Electric heating device for a motor vehicle
EP0907307A1 (en) * 1997-10-03 1999-04-07 STMicroelectronics S.r.l. Heat sink for surface mount power packages
DE29719639U1 (en) * 1997-11-05 1998-12-03 Fritz Eichenauer Gmbh & Co Kg, 76870 Kandel Device for heating interiors, in particular motor vehicles
US5915466A (en) * 1998-01-19 1999-06-29 Lucent Technologies Inc. Heat dissipating structure for an electrical assembly
JP3807072B2 (en) * 1998-02-09 2006-08-09 株式会社デンソー Air conditioner for vehicles
EP0937595B1 (en) * 1998-02-20 2003-08-20 smart gmbh Heating or air conditioning for vehicles
EP0954210A1 (en) * 1998-04-28 1999-11-03 Lucent Technologies Inc. Cooling electronic apparatus
DE19838248A1 (en) † 1998-08-22 2000-03-02 Volkswagen Ag Process for controlling electrical consumers
DE19845401A1 (en) † 1998-10-02 2000-04-20 Micro Compact Car Smart Gmbh Electrical heating element, especially PTC heating element, has one heating resistance of resistance bank connected via power switch to battery voltage with pulse width modulation
TW556074B (en) * 1998-12-15 2003-10-01 Foxconn Prec Components Co Ltd Heat sink and the manufacturing method thereof
TW407753U (en) * 1999-03-02 2000-10-01 West Victory Ind Co Ltd Improvement of heat dissipating structure for CPU

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1395098A1 (en) * 2002-09-02 2004-03-03 Catem GmbH & Co.KG Electrical heating for vehicle
US6919535B2 (en) 2002-09-02 2005-07-19 Catem Gmbh & Co. Kg Electric heating for motor vehicles
US20040256377A1 (en) * 2002-10-30 2004-12-23 Catem Gmbh & Co.Kg Electric heating device comprising a plurality of heating elements
US6940050B2 (en) * 2002-10-30 2005-09-06 Catem Gmbh & Co. Kg Electric heating device comprising a plurality of heating elements
US20040169027A1 (en) * 2003-02-28 2004-09-02 Catem Gmbh & Co. Kg Electric heating device with heating zones
US7098426B2 (en) * 2003-02-28 2006-08-29 Catern Gmbh & Co. Kg Electric heating device with heating zones
US20060289462A1 (en) * 2003-04-25 2006-12-28 Ngk Spark Plug Co Ltd Air heater unit for vehicle and air heater system for vehicle
US7977606B2 (en) 2006-08-30 2011-07-12 Mitsubishi Heavy Industries, Ltd. Heat-transer-medium heating apparatus and vehicular air-conditioning apparatus using the same
US20080053981A1 (en) * 2006-08-30 2008-03-06 Mitsubishi Heavy Industries, Ltd. Heat-transer-medium heating apparatus and vehicular air-conditioning
US20090020619A1 (en) * 2007-07-18 2009-01-22 Catem Gmbh & Co. Kg Electrical Auxiliary Heater
US20090020515A1 (en) * 2007-07-20 2009-01-22 Catem Gmbh & Co. Kg Electric Heating Device, in Particular for Motor Vehicles
US9234677B2 (en) * 2007-07-20 2016-01-12 Catem Gmbh & Co. Kg Electric heating device, in particular for motor vehicles
US20140026759A1 (en) * 2007-10-04 2014-01-30 Nestec S.A. Heating device with an integrated thermoblock for a beverage preparation machine
US10413115B2 (en) * 2007-10-04 2019-09-17 Societe Des Produits Nestle S.A. Heating device with an integrated thermoblock for a beverage preparation machine
US20120193339A1 (en) * 2010-04-14 2012-08-02 Mitsubishi Heavy Industries, Ltd. Heating-medium heating unit and vehicle air conditioner using the same
US10024575B2 (en) * 2010-04-14 2018-07-17 Mitsubishi Heavy Industries, Ltd. Heating-medium heating unit and vehicle air conditioner using the same
US20130000108A1 (en) * 2010-10-08 2013-01-03 Eberspacher Catem Gmbh & Co. Kg Electrical heating device and method for the production thereof
US9295108B2 (en) * 2010-10-08 2016-03-22 Eberspächer Catem Gmbh & Co. Kg Electrical heating device and method for the production thereof
DE102010061550B4 (en) 2010-12-23 2023-06-07 Webasto Ag Electric Vehicle Heater
CN102685937A (en) * 2011-02-16 2012-09-19 博格华纳贝鲁系统有限公司 Electric heater and assembly therefor
US20120205362A1 (en) * 2011-02-16 2012-08-16 Hans-Peter Etzkorn Electric Heater and Assembly Therefor
DE102011089539B3 (en) * 2011-12-22 2013-04-25 Behr-Hella Thermocontrol Gmbh Device for controlling e.g. electrical auxiliary heater for electric vehicle, has printed circuit board fixed with heat coupling surface through connection pins for retaining thermal coupling of component to be cooled with coupling surface
US9398641B2 (en) 2011-12-22 2016-07-19 Eberspächer Catem Gmbh & Co. Kg Electrical heating device, particularly for a motor vehicle
US10244656B2 (en) * 2012-05-02 2019-03-26 Webasto SE Heating device for a vehicle, and method of cooling an electronic control unit of the heating device
US20150117847A1 (en) * 2012-05-02 2015-04-30 Uwe Reinholz Heating device for a vehicle, and method of cooling an electronic control unit of the heating device
US20140097179A1 (en) * 2012-10-05 2014-04-10 Borgwarner Beru Systems Gmbh Electrical heating device
US9937772B2 (en) 2013-10-21 2018-04-10 Mahle International Gmbh Heater
CN104701650A (en) * 2013-12-03 2015-06-10 马勒贝洱法兰西鲁法克公司 Electric heater
US9642189B2 (en) * 2013-12-03 2017-05-02 Mahle International Gmbh Electric heater
US20150156820A1 (en) * 2013-12-03 2015-06-04 MAHLE Behr France Rouffach S.A.S. Electric heater
US10549604B2 (en) * 2016-01-28 2020-02-04 Jahwa Electronics Co., Ltd. Independently-controlled PTC heater and device
US20190084374A1 (en) * 2016-01-28 2019-03-21 Jahwa Electronics Co., Ltd. Independently-controlled ptc heater and device
CN108882393A (en) * 2017-05-12 2018-11-23 马勒国际公司 electric heater
US20180326817A1 (en) * 2017-05-12 2018-11-15 Mahle International Gmbh Electric heater
US20200307354A1 (en) * 2017-12-19 2020-10-01 Valeo Systemes Thermiques Power supply module for heating radiator and heating radiator fitted with such a module
US12384225B2 (en) * 2017-12-19 2025-08-12 Valeo Systemes Thermiques Power supply module for heating radiator and heating radiator fitted with such a module
US20220305884A1 (en) * 2019-09-24 2022-09-29 Audi Ag Method for climate control
US20230074572A1 (en) * 2020-02-28 2023-03-09 Siemens Aktiengesellschaft Electronic Module, Method for Producing an Electronic Module, and Industrial Plant
US12082333B2 (en) * 2020-02-28 2024-09-03 Siemens Aktiengesellschaft Electronic module, method for producing an electronic module, and industrial plant
US20220266658A1 (en) * 2021-02-19 2022-08-25 Mahle International Gmbh Electrical adapter
US12447801B2 (en) * 2021-02-19 2025-10-21 Mahle International Gmbh Electrical adapter

Also Published As

Publication number Publication date
EP1157867A1 (en) 2001-11-28
ES2197846T5 (en) 2012-07-06
EP1157867B1 (en) 2002-12-18
EP1157868A2 (en) 2001-11-28
ATE244652T1 (en) 2003-07-15
EP1253807A2 (en) 2002-10-30
EP1157869A3 (en) 2002-07-17
ES2254568T3 (en) 2006-06-16
ATE240223T1 (en) 2003-05-15
DE50000968D1 (en) 2003-01-30
EP1253808A3 (en) 2003-02-05
EP1253808A2 (en) 2002-10-30
EP1157868A3 (en) 2002-07-17
JP2002019457A (en) 2002-01-23
JP2003276424A (en) 2003-09-30
JP3747031B2 (en) 2006-02-22
EP1157869B1 (en) 2003-05-14
JP2003260925A (en) 2003-09-16
EP1157869A2 (en) 2001-11-28
ES2201973T3 (en) 2004-04-01
DE50011929D1 (en) 2006-01-26
EP1253808B1 (en) 2005-12-21
DE50002174D1 (en) 2003-06-18
EP1157869B2 (en) 2012-05-23
ES2187411T3 (en) 2003-06-16
JP3481217B2 (en) 2003-12-22
ES2197846T3 (en) 2004-01-16
US6392207B2 (en) 2002-05-21
DE50002831D1 (en) 2003-08-14
ATE313450T1 (en) 2006-01-15
EP1253807A3 (en) 2003-02-05
EP1157868B1 (en) 2003-07-09
ATE229892T1 (en) 2003-01-15

Similar Documents

Publication Publication Date Title
US6392207B2 (en) Electric heating device, especially for use in motor vehicles
US6919535B2 (en) Electric heating for motor vehicles
US7627234B2 (en) Electrical heating device, particularly for an automobile vehicle
US9937772B2 (en) Heater
US20040169027A1 (en) Electric heating device with heating zones
US20040252986A1 (en) Electrical heater, heating heat exchanger and vehicle air conditioner
KR101774130B1 (en) Control module for an electric appliance
KR100454020B1 (en) Electrical heating device
KR100484731B1 (en) An electric heating device, especially for use in motor vehicles
KR100484730B1 (en) An electric heating device, especially for use in motor vehicles
CN101144649A (en) Electrical heater and vehicle air conditioner
KR20050018831A (en) Heater for vehicles using Positive Temperature Coefficient thermistor heating elements
KR20100005581A (en) Pulse width modulation control type high capacity ptc heater
KR20040079760A (en) A electric heater
KR102011670B1 (en) Heater for vehicle
KR100926316B1 (en) Electric Heater
KR20040079763A (en) A electric heater
KR20190073669A (en) PTC heater of dual type
FR2827113B1 (en) ELECTRIC HEATING DEVICE, PARTICULARLY FOR A MOTOR VEHICLE HEATING SYSTEM
KR20050070361A (en) Terminal of ptc water heater

Legal Events

Date Code Title Description
AS Assignment

Owner name: CATEM GMBH & CO. KG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BEETZ, KLAUS;BOHLENDER, FRANZ;REEL/FRAME:012186/0709

Effective date: 20010914

STCF Information on status: patent grant

Free format text: PATENTED CASE

CC Certificate of correction
FPAY Fee payment

Year of fee payment: 4

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

FPAY Fee payment

Year of fee payment: 8

FPAY Fee payment

Year of fee payment: 12