EP2897230B1 - Electrical connection in particular for an electrical heating system of a vehicle - Google Patents
Electrical connection in particular for an electrical heating system of a vehicle Download PDFInfo
- Publication number
- EP2897230B1 EP2897230B1 EP14000208.0A EP14000208A EP2897230B1 EP 2897230 B1 EP2897230 B1 EP 2897230B1 EP 14000208 A EP14000208 A EP 14000208A EP 2897230 B1 EP2897230 B1 EP 2897230B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- circuit board
- metal sheet
- connector
- plug connection
- 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.)
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Links
- 238000010438 heat treatment Methods 0.000 title claims description 31
- 239000002184 metal Substances 0.000 claims description 32
- 230000000284 resting effect Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 2
- 210000002105 tongue Anatomy 0.000 description 111
- 238000003780 insertion Methods 0.000 description 13
- 230000037431 insertion Effects 0.000 description 13
- 239000011265 semifinished product Substances 0.000 description 9
- 238000005452 bending Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000004080 punching Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 235000014676 Phragmites communis Nutrition 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 244000089486 Phragmites australis subsp australis Species 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/04—Pins or blades for co-operation with sockets
- H01R13/05—Resilient pins or blades
- H01R13/055—Resilient pins or blades co-operating with sockets having a rectangular transverse section
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
- H01R12/73—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/26—Connectors or connections adapted for particular applications for vehicles
Definitions
- the present invention relates to an electrical plug-in connection between a printed circuit board provided with at least one connection piece and a contact tongue made of a sheet metal which can be introduced through a cutout in the printed circuit board to the connection piece.
- the present invention relates to an electrical connector of this type in an electrical heating device for a motor vehicle.
- Such an electric heating device for a motor vehicle usually has at least one PTC heating element with contact plates which are aligned substantially parallel to one another and receive a PTC element between them. It is the present invention to the electrical contact of these contact plates to a circuit board.
- the electrical heating device with the electrical plug connection according to the invention can also have a connection board for connecting different PTC heating elements to strip conductors and another populated control circuit board, in which control signals for driving the PTC heating elements are processed and passed on to the connection board.
- the electrical connection of the control circuit board to the terminal board is carried out via the electrical connector according to the invention.
- An electric heater for a motor vehicle of the type mentioned is for example from the EP 1 931 176 B1 described above using the example of a heater for heating liquid fluid.
- the control circuit board extends at right angles to the terminal board and is provided in a separate control housing.
- An electric heater of the type mentioned for a motor vehicle can also, for example, as a PTC heater for air heating such as in EP 0 901 311 A1 and EP 1 157 867 B1 be described described.
- each first spring tongue projects from a first longitudinal side of the recess into it, whereas each second spring tongue projects from the opposite longitudinal side into the recess.
- a contact tongue For electrical contacting a contact tongue is inserted into the recess, which protrudes between the opposite spring tongues, so that the spring tongues abut against opposing surfaces on the contact tongue and hereby provide a solid electrical contact, which is made compact, since the female connector only with its flange Mounting portion rests on a surface of the circuit board, but otherwise is located in the recess of the circuit board.
- the present invention wants from the EP 2 236 330 B1 improve known electrical connector.
- the contact tongue has at least one lifted out of the plane of the sheet, in the longitudinal direction of the contact tongue extending contact surface, at the top in the inserted state at least one of the spring tongues rests.
- the contact tongue of the electrical according to the invention Plug connection a contouring.
- the sheet is usually modified by forming to form the raised contact surface.
- the present invention proposes at least three spring tongues in the longitudinal direction of the recess one behind the other.
- the middle of these three spring tongues is provided on one side, the two outer spring tongues of this group of three on the other side of the preferably elongated recess.
- the two outer spring tongues cooperate with corresponding contact surfaces of the sheet, which is provided on a different plane than the contact surface of the sheet cooperating with the central contact tongue.
- the cooperating with the two outer spring tongues of the triplet contact surfaces of the sheet may be formed by unmodified surfaces of the original flat sheet semifinished product or be the same by reshaping raised from this plane contact surfaces.
- the cooperating with the middle spring tongue contact surface of the sheet is formed in each case in other ways, that is formed in the first case by a particular raised by forming lifted contact surface or by the normal, ie not formed surface of the flat sheet semifinished product.
- a solid contact is achieved by which the contact tongue on the one hand solidly supported and on the other hand is applied with good pressure to the spring tongues of the connector.
- It can also be several triplets too a single recess and a contact tongue provided corresponding thereto.
- the groups of three can each share the outer spring tongues with respect to the connecting piece and the outer contact surfaces with respect to the contact tongue. In this case, therefore, the last spring tongue of the first group of three is the first spring tongue of the following, provided in the longitudinal direction of the recess behind the triad.
- the contact surface lifted out of the plane of the sheet through the upper side of a contact rib is formed by forming the sheet, in particular by deep drawing of the sheet.
- the system extends in the longitudinal direction of the contact tongue.
- the longitudinal direction is identical to the insertion of the contact tongue in the female connector during manufacture of the electrical connector, hereinafter also referred plugging direction.
- the contact tongue has a front portion which limits the contact tongue end, ie at its free end face.
- This front section is preceded by at least one raised contact surface.
- the raised contact surface preferably connects directly to the front section.
- the front portion has top and bottom surfaces disposed between the contact surfaces formed on the top and bottom of the panel. Consequently, the front section is usually located with its upper and lower surfaces in each case at a distance from the arranged on the top and bottom of the sheet contact surfaces or these contact surfaces containing levels.
- the surface of the contact portion has the same height distance to a plane containing the contact surface at the top as the bottom surface to a formed on the underside of the sheet contact surface or a plane containing them.
- the front portion end with a phase.
- the free end of the reed i. the free end of the front section also be rounded only.
- the contact tongue is integrally formed on a metal sheet, which forms a sheet metal base greater width than the contact tongue.
- This sheet metal base is surmounted by the contact tongue end.
- connection lands are separated to form electrically isolated regions of a printed circuit board consisting of the embossed and trimmed sheet and the support board fixed to the support board.
- the sheet metal base preferably forms a stamped metal plate, as described in more detail as part of a printed circuit board in the present applicant EP 2 505 931 A1 is described. All details disclosed there to the metal plate described there can further develop the sheet of the present invention.
- the spring tongues are punctiform on the sheet. This is usually achieved in that the spring tongues are each punched.
- a line-shaped impression is provided on the spring tongue, which is provided on a usually convex contact surface of the spring tongue and projects beyond this flat surface in the manner of a ridge.
- the present invention further provides an electrical heating device for a motor vehicle under protection.
- the electrical heating device has at least one PTC heating element with contact plates aligned substantially parallel to one another and accommodating at least one PTC element between them.
- the electrical heating device has a printed circuit board, which forms at least one recess, which is penetrated by a formed by a contact plate contact tongue for electrical connection of the PTC heating element to the circuit board.
- This printed circuit board is used to connect usually several PTC heating elements and is therefore referred to as a connection board.
- this electric heater has an electrical connector previously described in relation to the present invention.
- the connector is provided between the contact tongue of the PTC heating element and the terminal board.
- the electrical connector can also be provided between this terminal board and a populated control circuit board.
- the populated control circuit board is equipped with electrical or electronic components and passes on the control circuit board controlled power current to the terminal board on.
- the sheet is usually formed as a uniform punched / bent part with the fittings formed therein and then connected to the insulating support plate.
- control circuit board defines various heating circuits to the PTC heating element, i. can selectively drive differently grouped PTC heating elements of the electric heater.
- power current for typically grouped PTC heating elements can usually be modulated by means of PWM (Pulse Width Modulation) and thus the electrical power of individual heating stages or of all PTC heating elements of the electric heating device can be varied.
- FIGS. 1 and 2 show a marked with reference numeral 2 Steuerleiterplatte.
- This control circuit board 2 is equipped with electrical or electronic components and is used to process control signals. It has a plurality of interconnects which serve, among other things, the connection to a power connector or a control connector, which in each case forward the power current and control signals to the control circuit board 2.
- the printed conductors, not shown, of the control circuit board 2 are electrically connected to connecting pieces 4.
- These fittings 4 have a mounting portion 6, the flange-shaped and on the in the insertion direction (arrow E in Fig. 1 ) front surface of the control circuit board 2 and a plurality of spring tongues 8, which are fixed to the mounting portion 6 and project into a recess 10 of the control circuit board 2.
- the spring tongues 8 are in the in EP 2 236 330 B1 described manner formed by punching and bending from a sheet. They extend within the recess 10, but usually do not tower over this. Likewise in EP 2 236 330 B1 described, the connector 4 at longitudinally opposite ends holding webs 12, which are introduced into a separate bore 14 of the control circuit board 2.
- the control circuit board 2 is upstream in the FIGS. 1 and 2 an end portion of a terminal board 16 is shown.
- This terminal board 16 has a plurality of electrically separate line paths, which are formed by a stamped sheet 18, as shown in the EP 2 505 931 A1 the present applicant is described.
- FIG. 1 lacks a this sheet 18 underside supporting insulating formed support plate. In fact, the plate 18 and the carrier plate are intimately connected.
- FIGS. 1 and 2 are still separators 22 to recognize which are initially allowed to stand in the punching processing of the sheet 18 to connect the plate 18 as a stable unit with the support plate. These dividers 22 are severed after connection to define different conduction paths through the sheet 18.
- Each individual conduction path is provided in the embodiment shown with a contact tongue 24, which projects beyond the support plate end.
- the contact tongues 24 are also formed in the sheet metal processing of the sheet 18 (punching and bending) and integrally formed on the plate 18.
- the contact tongues 24 have a width which is smaller than the width of an elongated receiving opening 26 of the elongate connecting pieces 4.
- FIGS. 4 to 7 Details of the respective connection piece 4 and the contact tongue 24 are in particular the FIGS. 4 to 7 to which reference is made below.
- the FIGS. 4 to 6 show increases the inserted state FIG. 2 for the embodiment shown and for the reference numerals 4.2 and 24.2 in the FIGS. 1 and 2 marked plug-in elements of the electrical connector.
- This contact tongue 24 is - as already mentioned above - formed as an integral part of the sheet 18.
- underside 28 shown forms three parallel in the direction of insertion E extending lower contact surfaces 30.1 to 30.3.
- these lower contact surfaces 30 lie in a plane which lies through the original surface of the unprocessed, ie flat semi-finished product, as which the sheet 18 initially supplied (hereinafter semi-finished plane E1) is.
- semi-finished plane E1 the sheet 18 initially supplied
- a circumferential ramp surface 38 leading to the raised contact surfaces 36 is formed on the upper side 34.
- the raised contact surfaces 36 of all abutment ribs 32 lie on a raised plane, the in FIG. 6 is marked with E3 and which projects beyond a projected semi-finished plane E2 of the sheet 18.
- This projected semifinished product plane E2 is defined by an original surface of the semifinished material before the bending treatment.
- the contact surfaces 30 formed on the underside 28 by the surface of the sheet metal semifinished product lie on the raised plane E3 opposite Semifinished product level E1.
- a marked with reference numeral 44 front portion As part of the sheet metal processing is characterized in deep drawing a marked with reference numeral 44 front portion, so that the front portion 44 parallel to the two planes E1, E3, but with its upper and lower surfaces 46; 48 is located between these two levels E1, E3. Due to the bending processing, a further ramp surface 50 is also formed on the underside 28 at the transition between the front section 44 and the semi-finished plane 42.
- the free end of the front portion 44 that is, the front end of the contact tongue 24 is rounded in the embodiment shown.
- the surface 46 has the same distance to the raised plane E3 as the lower surface 48 to the semi-finished plane E1.
- FIGS. 4 and 5 Let next to the contact tongues 24 also on the sheet 18 formed stiffening ribs 52 which overlap in the longitudinal direction partially with the abutment ribs 32 and stiffen the plate 18 in the region of relatively large-scale punched-out recesses 54.
- stiffening ribs 52 which overlap in the longitudinal direction partially with the abutment ribs 32 and stiffen the plate 18 in the region of relatively large-scale punched-out recesses 54.
- the contact tongue 24.2 abutment ribs 32 extend into a widened base 60 of the sheet 18, which is surmounted by the contact tongue 24.
- the stiffening rib 52 stiffens the metal sheet 18 in the region of the punched-out recess 54.
- FIGS. 4 and 5 also clarify details of the connector 4.2 as shown in the FIGS. 1 and 2 ,
- This connector 4.2 has five spring tongues 8.1 to 8.5.
- Those with reference numbers 8.2 and 8.4 in FIG. 4 characterized spring tongues protrude from a first longitudinal side into the elongate recess 10; the marked with reference numerals 8.1, 8.3 and 8.5 spring tongues from an opposite longitudinal side of the recess 10.
- the spring tongues 8 are provided with an impression 56.
- a ridge extending substantially in the longitudinal direction thereof is provided on a convex spring tongue contact surface 58 of the respective contact tongue.
- This burr forms when applied to the lower contact surface 30 with this contact surface a line-shaped, but usually near-point contact point. Accordingly, results a punctiform defined and accurate area for power transmission.
- This punctual system stores the spring force as a whole again, so that the spring tongue 8 abuts against the lower contact surface 30 with high surface pressure. Such a design improves the power transmission between the two elements of the plug contact.
- the spring tongues 8 In the longitudinal direction of the recess 10, the spring tongues 8 therefore alternate with respect to their respective contact plane E1, E3.
- the first, third and fifth contact tabs 8.1, 8.3 and 8.5 bear with their convex spring tongue contact surfaces 58 at the highest point on the lower contact surfaces 30.1 or 30.2 or 30.3.
- the second and fourth contact tongues 8.2 and 8.4 rest with their convex spring tongue contact surfaces 58 at the lowest point on the upper contact surfaces 36.2 and 36.4.
- the first spring tongues 8.1, 8.2 and 8.3 can be defined as a group of three, from this three group, the spring tongues 8.1 and 8.3 abut the lower contact surface 30.1 and 30.2, whereas provided therebetween spring tongue 8.2 abuts the raised contact surface 36.2.
- a second group of three likes in the spring tongues 8.3, 8.4 and 8.5 can be seen in a similar way.
- a third group of three is formed, for example, on the lifted-out plane E3 on the sheet 18 adjacent spring tongues 8.2 and 8.4 together with the opposite provided spring tongue 8.3.
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
Description
Die vorliegende Erfindung betrifft eine elektrische Steckverbindung zwischen einer mit zumindest einem Anschlussstück versehenen Leiterplatte und einer durch eine Ausnehmung in der Leiterplatte an das Anschlussstück einbringbaren Kontaktzunge aus einem Blech. Die vorliegende Erfindung betrifft insbesondere eine elektrische Steckverbindung dieser Art in einer elektrischen Heizvorrichtung für ein Kraftfahrzeug. Eine solche elektrische Heizvorrichtung für ein Kraftfahrzeug hat üblicherweise zumindest ein PTC-Heizelement mit im Wesentlichen parallel zueinander ausgerichteten und zwischen sich ein PTC-Element aufnehmenden Kontaktblechen. Dabei geht es nach der vorliegenden Erfindung um den elektrischen Kontakt dieser Kontaktbleche an eine Leiterplatte. Die elektrische Heizvorrichtung mit der erfindungsgemäßen elektrischen Steckverbindung kann aber auch eine Anschlussleiterplatte zum Anschluss verschiedener PTC-Heizelemente an Leiterbahnen und eine weitere bestückte Steuerleiterplatte haben, in welcher Steuersignale zum Ansteuern der PTC-Heizelemente verarbeitet und an die Anschlussleiterplatte weitergegeben werden. Der elektrische Anschluss der Steuerleiterplatte an die Anschlussleiterplatte erfolgt dabei über die erfindungsgemäße elektrische Steckverbindung.The present invention relates to an electrical plug-in connection between a printed circuit board provided with at least one connection piece and a contact tongue made of a sheet metal which can be introduced through a cutout in the printed circuit board to the connection piece. In particular, the present invention relates to an electrical connector of this type in an electrical heating device for a motor vehicle. Such an electric heating device for a motor vehicle usually has at least one PTC heating element with contact plates which are aligned substantially parallel to one another and receive a PTC element between them. It is the present invention to the electrical contact of these contact plates to a circuit board. However, the electrical heating device with the electrical plug connection according to the invention can also have a connection board for connecting different PTC heating elements to strip conductors and another populated control circuit board, in which control signals for driving the PTC heating elements are processed and passed on to the connection board. The electrical connection of the control circuit board to the terminal board is carried out via the electrical connector according to the invention.
Eine elektrische Heizvorrichtung für ein Kraftfahrzeug der eingangs genannten Art ist beispielsweise aus der
Bei elektrischen Einrichtungen, insbesondere bei elektrischen Heizvorrichtungen mit wenigstens einem PTC-Heizelement besteht das Problem eines einfachen und sicheren elektrischen Anschlusses verschiedener den Leistungsstrom vermittelnder Komponenten. Dieses Problem nimmt mit der Anzahl von parallel vorgesehenen elektrischen Steckverbindungen zu. Es ist grundsätzlich eine einfache und kostengünstige Ausgestaltung gewünscht. Speziell im Kraftfahrzeug spielt der Bauraum eine bedeutsame Rolle. Andererseits werden aber mitunter sehr hohe Ströme über die elektrische Steckverbindung geleitet, so dass eine solide elektrische Kontaktierung zwischen den Partnern der elektrischen Steckverbindung, d.h. dem weiblichen Anschlussstück und der in dieses Anschlussstück einbringbaren Kontaktzungen notwendig ist.In electrical devices, in particular in electrical heaters with at least one PTC heating element, there is the problem of a simple and safe electrical connection of various power-conveying components. This problem increases with the number of electrical connectors provided in parallel to. It is basically a simple and inexpensive design desired. Especially in the motor vehicle, the space plays a significant role. On the other hand, sometimes very high currents are passed through the electrical connector, so that a solid electrical contact between the partners of the electrical connector, ie the female connector and the insertable into this connector contact tongues is necessary.
Mit Blick auf insbesondere eine kompakte Ausgestaltung beschreibt die
Die vorliegende Erfindung will die aus der
Zur Lösung wird mit der vorliegenden Erfindung eine elektrische Steckverbindung mit den Merkmalen von Anspruch 1 vorgeschlagen. Bei dieser elektrischen Steckverbindung hat die Kontaktzunge zumindest eine aus der Ebene des Blechs herausgehobene, sich in Längsrichtung der Kontaktzunge erstreckende Kontaktfläche, an deren Oberseite im eingeführten Zustand zumindest eine der Federzungen anliegt. In der von dem vorbekannten Stand der Technik, bei welchem die Kontaktzunge lediglich aus einem ebenen gestanzten Blechstück geringer Breite besteht, hat die Kontaktzunge der erfindungsgemäßen elektrischen Steckverbindung eine Konturierung. Das Blech ist üblicherweise durch Umformen modifiziert, um die herausgehobene Kontaktfläche auszubilden. So besteht die Möglichkeit, ein relativ kostengünstig herzustellendes und mit geringer Dicke ausgebildetes Blech für die Ausgestaltung der Kontaktzunge zu verwenden, gleichwohl aber durch Herausheben zumindest einer Kontaktfläche an einer Seite der Kontaktzungen einen vergrößerten Abstand zwischen der dort vorgesehenen Kontaktfläche und der auf der gegenüberliegenden Seite vorgesehenen Kontaktfläche zu schaffen. Durch diesen vergrößerten Abstand werden die Federzungen beim Einbringen der Kontaktzunge gegenüber der vorbekannten Lösung in verstärktem Maße umbogen und somit unter Vorspannung gegen die zugeordneten Kontaktflächen des Blechs angelegt. Dadurch wird die Qualität des elektrischen Kontaktes der elektrischen Steckverbindung verbessert. Diese verbesserte Qualität ist von Bedeutung für jedwede elektrische Steckverbindung, insbesondere für jedwede elektrische Steckverbindung in einem Kraftfahrzeug, wo mitunter hohe Vibrationsbelastungen eine solide elektrische Kontaktierung von nicht unmittelbar stoffschlüssig miteinander verbundenen Elementen erschweren.To solve the invention, an electrical connector with the features of claim 1 is proposed. In this electrical connector, the contact tongue has at least one lifted out of the plane of the sheet, in the longitudinal direction of the contact tongue extending contact surface, at the top in the inserted state at least one of the spring tongues rests. In the of the prior art, in which the contact tongue consists only of a flat stamped piece of sheet metal of small width, the contact tongue of the electrical according to the invention Plug connection a contouring. The sheet is usually modified by forming to form the raised contact surface. Thus, it is possible to use a relatively inexpensive to manufacture and formed with a small thickness sheet metal for the design of the contact tongue, but nevertheless by lifting at least one contact surface on one side of the contact tongues an enlarged distance between the contact surface provided there and provided on the opposite side Create contact surface. Due to this increased distance, the spring tongues when inserting the contact tongue with respect to the previously known solution in a larger extent and thus applied under bias against the associated contact surfaces of the sheet. As a result, the quality of the electrical contact of the electrical connector is improved. This improved quality is important for any electrical connector, in particular for any electrical connector in a motor vehicle, where sometimes high vibration loads complicate a solid electrical contact of not directly cohesively interconnected elements.
Mit Blick auf eine möglichst gleichmäßige und solide Kontaktierung wird gemäß einer bevorzugten Weiterbildung der vorliegenden Erfindung vorgeschlagen, zumindest drei Federzungen in Längsrichtung der Ausnehmung hintereinander vorzusehen. Die mittlere dieser drei Federzungen ist auf einer Seite, die beiden äußeren Federzungen dieser Dreiergruppe auf der anderen Seite der vorzugsweise länglichen Ausnehmung vorgesehen. Die beiden äußeren Federzungen wirken mit korrespondierenden Kontaktflächen des Blechs zusammen, die auf einer anderen Ebene als die mit der mittleren Kontaktzunge zusammenwirkende Kontaktfläche des Blechs vorgesehen ist. Dabei können die mit den beiden äußeren Federzungen der Dreiergruppe zusammenwirkenden Kontaktflächen des Blechs durch nicht modifizierte Oberflächen des ursprünglichen flachen Blech-Halbzeugs gebildet sein oder aber durch Umformen desselben aus dieser Ebene herausgehobene Kontaktflächen sein. Die mit der mittleren Federzunge zusammenwirkende Kontaktfläche des Blechs wird jeweils in anderer Weise gebildet, d.h. ist bei der ersten Fallgestaltung durch eine insbesondere durch Umformen herausgehobene Kontaktfläche gebildet oder aber durch die normale, d.h. nicht umgeformte Oberfläche des flachen Blech-Halbzeugs. Durch diese Ausgestaltung wird eine solide Kontaktierung erreicht, durch welche die Kontaktzunge einerseits solide gelagert und andererseits mit guter Pressung an die Federzungen des Anschlussstücks angelegt ist. Dabei können auch mehrere Dreiergruppen zu einer einzigen Ausnehmung und einer korrespondierend hierzu vorgesehenen Kontaktzunge ausgebildet sein. Die Dreiergruppen können sich jeweils bezogen auf das Anschlussstück die äußeren Federzungen und bezogen auf die Kontaktzunge die äußeren Kontaktflächen teilen. Dabei ist also die letzte Federzunge der ersten Dreiergruppe die erste Federzunge der nachfolgenden, in Längsrichtung der Ausnehmung dahinter vorgesehenen Dreiergruppe.With a view to the most uniform and solid contacting possible, it is proposed according to a preferred development of the present invention to provide at least three spring tongues in the longitudinal direction of the recess one behind the other. The middle of these three spring tongues is provided on one side, the two outer spring tongues of this group of three on the other side of the preferably elongated recess. The two outer spring tongues cooperate with corresponding contact surfaces of the sheet, which is provided on a different plane than the contact surface of the sheet cooperating with the central contact tongue. In this case, the cooperating with the two outer spring tongues of the triplet contact surfaces of the sheet may be formed by unmodified surfaces of the original flat sheet semifinished product or be the same by reshaping raised from this plane contact surfaces. The cooperating with the middle spring tongue contact surface of the sheet is formed in each case in other ways, that is formed in the first case by a particular raised by forming lifted contact surface or by the normal, ie not formed surface of the flat sheet semifinished product. By this configuration, a solid contact is achieved by which the contact tongue on the one hand solidly supported and on the other hand is applied with good pressure to the spring tongues of the connector. It can also be several triplets too a single recess and a contact tongue provided corresponding thereto. The groups of three can each share the outer spring tongues with respect to the connecting piece and the outer contact surfaces with respect to the contact tongue. In this case, therefore, the last spring tongue of the first group of three is the first spring tongue of the following, provided in the longitudinal direction of the recess behind the triad.
Mit Blick auf eine möglichst einfache Herstellung der erfindungsgemäßen Steckverbindung wird gemäß einer bevorzugten Weiterbildung der vorliegenden Erfindung vorgeschlagen, die aus der Ebene des Blechs herausgehobene Kontaktfläche durch die Oberseite einer Anlagerippe auszubilden. Diese Anlagerippe ist durch Umformen des Blechs, insbesondere durch Tiefziehen des Blechs ausgeformt. Die Anlage erstreckt sich in Längsrichtung der Kontaktzunge. Dabei ist die Längsrichtung identische mit der Einführrichtung der Kontaktzunge in das weibliche Anschlussstück beim Herstellen der elektrischen Steckverbindung, nachfolgend auch Steckrichtung bezeichnet.With a view to the simplest possible production of the connector according to the invention, it is proposed according to a preferred development of the present invention to form the contact surface lifted out of the plane of the sheet through the upper side of a contact rib. This abutment rib is formed by forming the sheet, in particular by deep drawing of the sheet. The system extends in the longitudinal direction of the contact tongue. In this case, the longitudinal direction is identical to the insertion of the contact tongue in the female connector during manufacture of the electrical connector, hereinafter also referred plugging direction.
Gemäß einer bevorzugten Weiterbildung der vorliegenden Erfindung hat die Kontaktzunge einen Frontabschnitt, der die Kontaktzunge endseitig, d.h. an ihrer freien Stirnseite begrenzt. Dieser Frontabschnitt ist der zumindest einen herausgehobenen Kontaktfläche vorgelagert. Die herausgehobene Kontaktfläche schließt sich vorzugsweise unmittelbar an den Frontabschnitt an. Der Frontabschnitt hat Ober- und Unterflächen, die zwischen den auf der Ober- und Unterseite des Blechs ausgebildeten Kontaktflächen angeordnet sind. Mithin befindet sich der Frontabschnitt üblicherweise mit seinen Ober- und Unterflächen jeweils mit Abstand zu den auf der Oberseite und der Unterseite des Blechs angeordneten Kontaktflächen bzw. diese Kontaktflächen enthaltenden Ebenen. Üblicherweise hat die Oberfläche des Kontaktabschnitts den gleichen Höhenabstand zu einer die Kontaktfläche an der Oberseite enthaltenden Ebene wie die Unterfläche zu einer an der Unterseite des Blechs ausgebildeten Kontaktfläche bzw. einer diese enthaltenden Ebene. Bei dieser Ausgestaltung wird davon ausgegangen, dass sämtliche Kontaktflächen der Kontaktzunge entweder auf der herausgehobenen Ebene oder aber eine dazu gegenüberliegende Oberfläche des blechförmigen Halbzeugs vor der Umformung definierten Ebene liegen. Die zuvor diskutierte Ausgestaltung vereinfacht das Positionieren und Einführen der Kontaktzunge zwischen die zunächst im unelastischen Zustand die Ausnehmung ganz oder teilweise verdeckenden Federzungen. Die Federzungen werden durch den Frontabschnitt zunächst geringfügig geweitet. Durch den Frontabschnitt werden die an gegenüberliegenden Seiten vorgesehenen Federzungen voneinander getrennt. Bei fortschreitender Einsteckbewegung gleiten die Federzungen dann an einer zwischen dem Frontabschnitt und dem ober- und unterseitig vorgesehenen Kontaktflächen vorgesehenen Rampenflächen vorbei und werden dadurch weiter elastisch umbogen und mit hoher elastischer Vorspannung an die Kontaktflächen angelegt.According to a preferred embodiment of the present invention, the contact tongue has a front portion which limits the contact tongue end, ie at its free end face. This front section is preceded by at least one raised contact surface. The raised contact surface preferably connects directly to the front section. The front portion has top and bottom surfaces disposed between the contact surfaces formed on the top and bottom of the panel. Consequently, the front section is usually located with its upper and lower surfaces in each case at a distance from the arranged on the top and bottom of the sheet contact surfaces or these contact surfaces containing levels. Usually, the surface of the contact portion has the same height distance to a plane containing the contact surface at the top as the bottom surface to a formed on the underside of the sheet contact surface or a plane containing them. In this embodiment, it is assumed that all contact surfaces of the contact tongue lie either on the lifted-out plane or else an opposite surface of the sheet-shaped semi-finished product before the deformation defined plane. The previously discussed embodiment simplifies the positioning and insertion of the contact tongue between the initially in the inelastic state, the recess completely or partially concealing spring tongues. The spring tongues are through the front section initially slightly widened. By the front section, the provided on opposite sides of the spring tongues are separated. As the insertion movement progresses, the spring tongues then slide past a ramp surface provided between the front section and the contact surfaces provided on the upper and lower sides and are thereby further elastically bent over and applied to the contact surfaces with high elastic prestressing.
Mit Blick auf ein leichtes Einstecken in der Kontaktzunge in das Anschlussstück wird gemäß einer bevorzugten Weiterbildung der vorliegenden Erfindung vorgeschlagen, den Frontabschnitt endseitig mit einer Phase vorzusehen. Alternativ kann das freie Ende der Kontaktzunge, d.h. das freie Ende des Frontabschnitts auch lediglich abgerundet sein.With a view to easy insertion into the contact tongue in the connecting piece is proposed according to a preferred embodiment of the present invention to provide the front portion end with a phase. Alternatively, the free end of the reed, i. the free end of the front section also be rounded only.
Gemäß einer bevorzugten Weiterbildung der vorliegenden Erfindung ist die Kontaktzunge einteilig an einem Blech ausgebildet, welches eine Blechbasis größere Breite als die Kontaktzunge ausformt. Diese Blechbasis wird von der Kontaktzunge endseitig überragt. Mit Blick auf eine Verstärkung der Kontaktzungen an ihrem Fuß, d.h. an dem Übergang zu der verbreiterten Blechbasis erstreckt sich die aus der Ebene des Blechs herausgehobene Kontaktfläche bis in die Blechbasis. Durch das Herausheben der Kontaktfläche, d.h. die Umformbearbeitung des Blechs wird dieses versteift. So ist auch bei einem relativ dünnen Blech die Kontaktzunge zusätzlich durch die Umformbearbeitung gegen Umknicken beim Einführen der Kontaktzunge in das Anschlussstück gesichert. Üblicherweise wird das Blech zunächst umformbearbeitet, d.h. als Halbzeug geprägt, um die zunächst ebene Tafel dreidimensional zu konturieren. Danach erfolgt das Schneiden bzw. Stanzen. Dabei werden üblicherweise Bereiche des Blechs durch Schlitze voneinander getrennt, wobei diese Bereiche über Verbindungsstege aneinander gehalten sind. Es verbleibt dementsprechend ein einteiliges, indes mit erheblichen Ausnehmungen versehenes Blech. Nachdem dieses Blech mit einer isolierend ausgebildeten Trägerleiterplatte verbunden ist, werden die verbleibenden Verbindungsstege getrennt, um elektrisch voneinander isolierte Bereiche einer Leiterplatte bestehend aus dem geprägten und beschnittenen Blech und der Trägerleiterplatte auszubilden, die an der Trägerleiterplatte befestigt sind.According to a preferred embodiment of the present invention, the contact tongue is integrally formed on a metal sheet, which forms a sheet metal base greater width than the contact tongue. This sheet metal base is surmounted by the contact tongue end. With a view to strengthening the contact tongues on their foot, i. at the transition to the widened sheet metal base, the contact surface lifted out of the plane of the sheet extends into the sheet metal base. By lifting out the contact surface, i. the forming of the sheet is stiffened this. Thus, even with a relatively thin sheet, the contact tongue is additionally secured by the forming processing against bending during insertion of the contact tongue in the connector. Usually, the sheet is first remoulded, i. shaped as a semi-finished product in order to three-dimensionally contour the initially flat board. Thereafter, the cutting or punching takes place. In this case, areas of the sheet are usually separated from each other by slots, wherein these areas are held together via connecting webs. It remains accordingly a one-piece, however, provided with considerable recesses sheet. After this sheet is connected to an insulating support board, the remaining connection lands are separated to form electrically isolated regions of a printed circuit board consisting of the embossed and trimmed sheet and the support board fixed to the support board.
Die Blechbasis bildet dabei vorzugsweise eine stanzbearbeitete Metallplatte aus, wie sie ausführlicher als Teil einer Leiterplatte in der auf die vorliegende Anmelderin zurückgehenden
Durch Verweis auf die frühere Offenbarung wird deren Inhalt in den Inhalt der vorliegenden Anmeldung übernommen. Gleiches gilt für die in der
Gemäß einer bevorzugten Weiterbildung der vorliegenden Erfindung liegen die Federzungen punktförmig an dem Blech an. Dies wird üblicherweise dadurch erreicht, dass die Federzungen jeweils stanzbearbeitet werden. Hierzu wird an der Federzunge eine linieförmige Einprägung vorgesehen, die an einer üblicherweise konvexen Kontaktfläche der Federzunge vorgesehen ist und diese ebene Fläche nach Art eines Grates überragt. Durch diese Ausgestaltung ergibt sich eine sehr punktuelle Anlage der Federzunge an dem Blech, die eine Stromeinleitung unter hoher Anpresskraft zwischen der Federzunge und dem Blech erlaubt. Dementsprechend ist der elektrische Übergangswiderstand an der Kontaktstelle gering und eine sichere Stromübertragung ohne Erwärmung an der Phasengrenze kann sichergestellt werden.According to a preferred embodiment of the present invention, the spring tongues are punctiform on the sheet. This is usually achieved in that the spring tongues are each punched. For this purpose, a line-shaped impression is provided on the spring tongue, which is provided on a usually convex contact surface of the spring tongue and projects beyond this flat surface in the manner of a ridge. This configuration results in a very punctual installation of the spring tongue on the sheet, which allows a current introduction under high contact pressure between the spring tongue and the sheet. Accordingly, the electrical contact resistance at the contact point is low and a safe power transmission without heating at the phase boundary can be ensured.
Mit der vorliegenden Erfindung wird ferner eine elektrische Heizvorrichtung für ein Kraftfahrzeug unter Schutz gestellt. Die elektrische Heizvorrichtung hat zumindest ein PTC-Heizelement mit im Wesentlichen parallel zueinander ausgerichteten und zwischen sich mindestens ein PTC-Element aufnehmenden Kontaktblechen. Des Weiteren hat die elektrische Heizvorrichtung eine Leiterplatte, welche wenigstens eine Ausnehmung ausbildet, die von einer durch ein Kontaktblech ausgebildeten Kontaktzunge zum elektrischen Anschluss des PTC-Heizelementes an die Leiterplatte durchragt ist. Diese Leiterplatte dient dem Anschluss üblicherweise mehrerer PTC-Heizelemente und wird daher als Anschlussleiterplatte bezeichnet. Erfindungsgemäß hat diese elektrische Heizvorrichtung eine zuvor in Bezug auf die vorliegende Erfindung beschriebene elektrische Steckverbindung. Die Steckverbindung ist dabei zwischen der Kontaktzunge des PTC-Heizelementes und der Anschlussleiterplatte vorgesehen. Alternativ oder zusätzlich kann die elektrische Steckverbindung auch zwischen dieser Anschlussleiterplatte und einer bestückten Steuerleiterplatte vorgesehen sein. Die bestückte Steuerleiterplatte ist mit elektrischen bzw. elektronischen Bauteilen bestückt und leitet auf der Steuerleiterplatte gesteuerten Leistungsstrom an die Anschlussleiterplatte weiter.The present invention further provides an electrical heating device for a motor vehicle under protection. The electrical heating device has at least one PTC heating element with contact plates aligned substantially parallel to one another and accommodating at least one PTC element between them. Furthermore, the electrical heating device has a printed circuit board, which forms at least one recess, which is penetrated by a formed by a contact plate contact tongue for electrical connection of the PTC heating element to the circuit board. This printed circuit board is used to connect usually several PTC heating elements and is therefore referred to as a connection board. According to the invention, this electric heater has an electrical connector previously described in relation to the present invention. The connector is provided between the contact tongue of the PTC heating element and the terminal board. Alternatively or additionally, the electrical connector can also be provided between this terminal board and a populated control circuit board. The populated control circuit board is equipped with electrical or electronic components and passes on the control circuit board controlled power current to the terminal board on.
Das Blech wird in der Regel als einheitliches Stanz-/Biegeteil mit den darin angeformten Anschlussstücken ausgebildet und danach mit der isolierenden Trägerplatte verbunden.The sheet is usually formed as a uniform punched / bent part with the fittings formed therein and then connected to the insulating support plate.
Üblicherweise folgt erst nach dem Verbinden ein Abtrennen von Stegen, um innerhalb des stanzbearbeiteten Blechs unterschiedliche Heizkreise zu definieren, die elektrisch voneinander getrennt und über die Trägerplatte gehalten sind, wie dies im Detail in
Die Steuerleiterplatte definiert insbesondere verschiedene Heizkreise zu dem PTC-Heizelement, d.h. kann selektiv unterschiedlich gruppierte PTC-Heizelemente der elektrischen Heizvorrichtung ansteuern. Auch kann der Leistungsstrom für in der Regel gruppierte PTC-Heizelemente üblicherweise mittels PWM (Puls-Weiten-Modulation) moduliert und somit die elektrische Leistung einzelner Heizstufen oder sämtlicher PTC-Heizelemente der elektrischen Heizvorrichtung variiert werden.In particular, the control circuit board defines various heating circuits to the PTC heating element, i. can selectively drive differently grouped PTC heating elements of the electric heater. Also, the power current for typically grouped PTC heating elements can usually be modulated by means of PWM (Pulse Width Modulation) and thus the electrical power of individual heating stages or of all PTC heating elements of the electric heating device can be varied.
Weitere Einzelheiten und Vorteile der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels in Verbindung mit der Zeichnung. In dieser zeigen:
- Figur 1
- eine Draufsicht auf die Unterseite einer Steuerleiterplatte und einem Endbereich einer dieser vorgelagerten Anschlussleiterplatte einer PTC-Heizvorrichtung mit einem Ausführungsbeispiel der erfindungsgemäßen elektrischen Steckverbindung vor dem Einstecken;
Figur 2- die in
Figur 1 gezeigte Ausgestaltung nach dem Einstecken; - Figur 3
- eine perspektivische Darstellung gemäß den
Figuren 1 und2 von der gegenüberliegenden Seite der Steuerleiterplatte; Figur 4- eine perspektivische Darstellung gemäß
Figur 3 für das inFigur 3 gezeigte Details D unter Auslassung der eigentlichen Steuerleiterplatte mit einer Draufsicht auf die Oberseite der Kontaktzunge; - Figur 5
- eine
Darstellung nach Figur 4 jedoch mit Draufsicht auf die Unterseite der Kontaktzunge; Figur 6- eine Längsschnittansicht des in
den Figuren 4 und5 dargestellten Details; und - Figur 7
- eine Querschnittansicht des in
den Figuren 4 und5 dargestellten Details.
- FIG. 1
- a plan view of the underside of a control circuit board and an end portion of one of these upstream terminal board of a PTC heating device with an embodiment of the electrical connector according to the invention prior to insertion;
- FIG. 2
- in the
FIG. 1 shown embodiment after insertion; - FIG. 3
- a perspective view according to the
FIGS. 1 and2 from the opposite side of the control circuit board; - FIG. 4
- a perspective view according to
FIG. 3 for the inFIG. 3 details D shown omitting the actual control circuit board with a top view of the top of the contact tongue; - FIG. 5
- a representation after
FIG. 4 but with a plan view of the underside of the contact tongue; - FIG. 6
- a longitudinal sectional view of the in the
FIGS. 4 and5 details shown; and - FIG. 7
- a cross-sectional view of the in the
FIGS. 4 and5 details shown.
Die
Die Federzungen 8 sind in der in
Der Steuerleiterplatte 2 vorgelagert ist in den
Details des jeweiligen Anschlussstücks 4 und der Kontaktzunge 24 sind insbesondere den
Zunächst werden die Details der Kontaktzunge 24 unter Bezugnahme auf die
Die
Die
Im entspannten Zustand, d.h. vor dem Fügen des weiblichen Anschlussstücks 4 und der männlichen Kontaktzunge 24, ragen die Federzungen 8 so in die Ausnehmung 10 hinein, dass deren gegenüberliegenden Federzungen-Kontaktflächen 58 im Wesentlichen in einer Ebene liegen. Ein freier Durchgang durch die Ausnehmung 10 ist jedenfalls durch die Federzungen 8 verlegt. Beim Einstecken trifft zunächst der Frontabschnitt 44 mit seiner abgerundeten Stirnfläche gegen die konvex gekrümmten Federzungen 8. Diese führen die Kontaktzunge 24 mittig zwischen die Federzungen 8. Bei fortschreitender Einbringbewegung in Steckrichtung E werden die Federzungen 8 mit ihren konvexen Federzungen-Kontaktflächen 58 zunächst gegen die Oberfläche 46 bzw. Unterfläche 48 des Frontabschnitts 44 angelegt. Sie gleiten mit fortschreitender Einsteckbewegung an diesen Ober- und Unterflächen 46; 48 entlang und treffen schließlich im Grunde zeitgleich einerseits an der Oberseite 34 auf die Rampenfläche 38 und andererseits an der Unterseite 28 auf die weitere Rampenfläche 50 (vgl.
Die ersten Federzungen 8.1, 8.2 und 8.3 können als Dreiergruppe definiert werden, wobei von dieser Dreigruppe die Federzungen 8.1 und 8.3 an der unteren Kontaktfläche 30.1 bzw. 30.2 anliegen, wohingegen die dazwischen vorgesehene Federzunge 8.2 an der herausgehobenen Kontaktfläche 36.2 anliegt. Eine zweite Dreiergruppe mag in den Federzungen 8.3, 8.4 und 8.5 in entsprechender Weise gesehen werden. Eine dritte Dreiergruppe wird beispielsweise auf der herausgehobenen Ebene E3 an dem Blech 18 anliegenden Federzungen 8.2 und 8.4 zusammen mit der gegenüberliegend vorgesehenen Federzunge 8.3 gebildet.The first spring tongues 8.1, 8.2 and 8.3 can be defined as a group of three, from this three group, the spring tongues 8.1 and 8.3 abut the lower contact surface 30.1 and 30.2, whereas provided therebetween spring tongue 8.2 abuts the raised contact surface 36.2. A second group of three likes in the spring tongues 8.3, 8.4 and 8.5 can be seen in a similar way. A third group of three is formed, for example, on the lifted-out plane E3 on the
- 22
- SteuerleiterplatteControl board
- 44
- Anschlussstückconnector
- 66
- Befestigungsabschnittattachment section
- 88th
- Federzungespring tongue
- 1010
- Ausnehmungrecess
- 1212
- Haltestegholding web
- 1414
- Bohrungdrilling
- 1616
- AnschlussleiterplatteTermination PC
- 1818
- Blechsheet
- 2222
- Trennstegdivider
- 2424
- Kontaktzungecontact tongue
- 2626
- Aufnahmeöffnungreceiving opening
- 2828
- Unterseitebottom
- 3030
- untere Kontaktflächelower contact surface
- 3232
- Anlagerippeplant rib
- 3434
- Oberseitetop
- 3636
- herausgehobene Kontaktflächeraised contact surface
- 3838
- Rampenflächeramp surface
- 4444
- Frontabschnittfront section
- 4646
- Oberflächesurface
- 4848
- Unterflächeundersurface
- 5050
- weitere Rampenflächefurther ramp surface
- 5252
- Versteifungsrippestiffening rib
- 5454
- ausgestanzte Ausnehmungpunched recess
- 5656
- Einprägungimpressing
- 5858
- Federzungen-KontaktflächeSpring tongues pad
- 6060
- Blechbasissheet metal base
- Ee
- Steckrichtungplug-in direction
- E3E3
- herausgehobene Ebenehighlighted level
- E2E2
- überragte Halbzeug-Ebenetowering semi-finished product level
- E1E1
- Halbzeug-EbeneSemi-finished level
Claims (10)
- An electrical plug connection between a circuit board (2) provided with at least one connector (4) and a contact blade (24) made of (18) that is insertable into the connector (4) through a recess (10) in the circuit board (2), in particular of an electrical heating device for a motor vehicle, wherein the connector (4) comprises a fastening portion (6) with protruding spring blades (8), resting on the circuit board (2), the spring blades protruding into the recess (10) from opposite sides,
characterized in that
the contact blade (24) comprises at least one contact surface (30), raised out of the plane (E2) of the metal sheet (18) and extending in the longitudinal direction of the contact blade (24), at least one of the spring blades (8) resting on the upper side (34) of said contact surface in the inserted state. - The electrical plug connection according to claim 1, characterized in that at least three spring blades (8.1, 8.2, 8.3) are provided in a row in the longitudinal direction of the recess (10), wherein the middle spring blade (8.2) among these three spring blades (8.1, 8.2, 8.3) is located on another side with respect to the two outer spring blades (8.1, 8.3) among these three spring blades (8.1, 8.2, 8.3) and that the contact surface (36.2) of the metal sheet (18) resting on the middle spring blade (8.2) is located on another plane (E3) with respect to the contact surfaces (30.1, 30.2) of the metal sheet (18) resting on the two outer spring blades (8.1, 8.3).
- The electrical plug connection according to claim 2, characterized in that the contact surface (36) raised out of the plane (E2) of the metal sheet (18) is formed by the upper side of an abutment rib (32) formed by deformation of the metal sheet (18) and extending in the longitudinal direction of the contact blade (24).
- The electrical plug connection according to one of the afore-mentioned claims, characterized in that a front portion (44) provided at the front side on the contact blade (24) and located in front of the at least one raised contact surface (36) comprises oppositely disposed level upper and lower surfaces (46, 48), which are disposed between the contact surfaces (30, 36) formed on the upper and lower side (28, 34) of the metal sheet (18).
- The electrical plug connection according to claim 4, characterized in that the front portion (44) is chamfered or rounded off at its end.
- The electrical plug connection according to one of the afore-mentioned claims, characterized in that only two planes (E1, E3) containing all of the contact surfaces (30, 36) are implemented.
- The electrical plug connection according to one of the afore-mentioned claims, characterized in that, at its end, the contact blade (24) protrudes above a metal sheet base (60) of greater width than the contact blade (24) and that the contact surface (36) raised above the plane (E2) of the metal sheet (18) extends into the metal sheet base (60).
- The electrical plug connection according to one of the afore-mentioned claims, characterized in that the spring blades (8) rest in spots against the metal sheet (18).
- An electrical heating device for a motor vehicle with at least one PTC heating element with contact metal sheets oriented substantially parallel relative to each other and receiving at least one PTC element between them, and a connector circuit board (16), which forms at least one recess (10) that is traversed by a contact blade (24) formed by a contact metal sheet for electrically connecting the PTC heating element with the connector circuit board (16),
characterized in that
an electrical plug connection according to one of the claims 1 to 8 is provided between the contact blade (24) of the PTC heating element and the connector circuit board (16) and/or between the connector circuit board (16) and a control circuit board (2) with mounted components. - The electrical heating device according to claim 9,
characterized in that the connector circuit board (16) comprises a carrier board formed of an electrically insulated material and the metal sheet (18) connected to it, which is punched in order to form several contact blades (24) and several electrically separated circuit paths leading to different contact blades (24).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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EP14000208.0A EP2897230B1 (en) | 2014-01-21 | 2014-01-21 | Electrical connection in particular for an electrical heating system of a vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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EP14000208.0A EP2897230B1 (en) | 2014-01-21 | 2014-01-21 | Electrical connection in particular for an electrical heating system of a vehicle |
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EP2897230A1 EP2897230A1 (en) | 2015-07-22 |
EP2897230B1 true EP2897230B1 (en) | 2019-05-15 |
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DE102017210005A1 (en) | 2017-06-14 | 2018-12-20 | Eberspächer Catem Gmbh & Co. Kg | Grommet |
DE102017210006A1 (en) | 2017-06-14 | 2018-12-20 | Eberspächer Catem Gmbh & Co. Kg | Electromagnetic shielding |
DE102017010211A1 (en) | 2017-11-02 | 2019-05-02 | Eberspächer Catem Gmbh & Co. Kg | Electric heater |
DE102023104034A1 (en) * | 2023-02-17 | 2024-08-22 | Eberspächer Catem Gmbh & Co. Kg | Electric heating device and assembly comprising a circuit board and a connector |
DE102023113200A1 (en) * | 2023-05-19 | 2024-11-21 | Eberspächer Catem Gmbh & Co. Kg | power connection |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1698840A2 (en) * | 2005-03-04 | 2006-09-06 | Behr France Rouffach SAS | PTC heater, especially for a vehicle |
EP2236330A1 (en) * | 2009-03-30 | 2010-10-06 | Eberspächer catem GmbH & Co. KG | Electric heater for a motor vehicle |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19738318C5 (en) | 1997-09-02 | 2014-10-30 | Behr Gmbh & Co. Kg | Electric heating device for a motor vehicle |
ES2187411T3 (en) | 2000-05-23 | 2003-06-16 | Catem Gmbh & Co Kg | ELECTRIC HEATING DEVICE, ESPECIALLY FOR APPLICATION IN CARS. |
ES2370156T3 (en) | 2006-10-25 | 2011-12-13 | Eberspächer Catem Gmbh & Co. Kg | ELECTRICAL HEATING DEVICE AND PROCEDURE FOR THE MANUFACTURING OF THE SAME. |
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 |
EP1983811A3 (en) * | 2007-04-18 | 2013-12-11 | Delphi Technologies, Inc. | Electrical Contact |
TWM336582U (en) * | 2008-02-18 | 2008-07-11 | Nextronics Engineering Corp | Structure of power terminal |
EP2440006B1 (en) | 2010-10-08 | 2015-02-25 | Eberspächer catem GmbH & Co. KG | Electric heating device |
EP2505931B2 (en) | 2011-03-30 | 2022-01-12 | Eberspächer catem GmbH & Co. KG | Electric heating device with a plate element comprising conducting tracks and method for producing such a plate element |
-
2014
- 2014-01-21 EP EP14000208.0A patent/EP2897230B1/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1698840A2 (en) * | 2005-03-04 | 2006-09-06 | Behr France Rouffach SAS | PTC heater, especially for a vehicle |
EP2236330A1 (en) * | 2009-03-30 | 2010-10-06 | Eberspächer catem GmbH & Co. KG | Electric heater for a motor vehicle |
Also Published As
Publication number | Publication date |
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EP2897230A1 (en) | 2015-07-22 |
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