The invention concerns an apparatus for the connection of an electrical or an electronic component with at least one electrical conductor.
Control and regulation devices are normally connected with sensors, as well as with switching and activation apparatuses by electrical conductors, in order that an exchange of sensor and control/regulation data may be properly communicated. To this end, as a rule, the electrical conductors possess as a rule, receiving sockets or plugs on their ends which can be respectively connectively joined with complementary plugs or sockets on the equipment or components to be connected. With such connectors, the ends of the electrical conductors of the electrical lines lead, in each instance, to a complementary metallic rod or to a metallic female receiver which completes the circuit.
Connections comprised of only one plug or socket are a matter of common knowledge, wherein the opposite end of the line binds releasably and mechanically directly to a contractor in the other equipment.
The technical requirements of such a plug-in connection are especially difficult to fulfill when said connections are to serve transmission sensors, control or regulation signals of particular importance for the functioning of technical objects. Thus, for example, critical electrical plug-in connections for airbag, motor, or transmission control apparatuses of motor vehicles are often very complex from the standpoint of the technologies of safety. Such complex design is seen as necessary, in order that a fail-safe electrical plug-in contact is established, between the said components and the control and regulation device which may be involved during the entire life of a motor vehicle.
As is taught in particular by DE 200 00 160 U1, electrical contacting apparatuses of this critical type are fastened with the least possible clearances to the wall of controlled transmission equipment in order to assure long lasting and faultless operation. Under certain circumstances, if such a close fitting is not possible, then, by the occurrence of drive line vibrations, the contiguous, movable components of the connection suffer damage. For the achieving of a releasable, vibration free electrical plug-in connection which further can be quickly mounted, proposed in the said DE 200 00 160 U1, a guide shell on the electrical contacting apparatus is provided, among other things. This guide shell would further penetrate the wall of a controller. After making of the desired electrical connection, then a releasable mechanical binding with the housing of the controller is attained by means of a lock within the contacting apparatus.
Electrical contacting apparatuses of this design are comparatively expensive because of the very complex mechanical construction. Further, in the current technical development, the trend is growing to undertake an electronic calibration of coacting, electrical components to assure increased sensibility and functional demands after they are in place, for instance after their electrical connection. By means of this calibration, attached components are made to be precisely tuned, during their individual operational behavior, to the control or regulation devices of the equipment to which they are applied. Since these sensitive components, as a rule, are not provided with any electronic memory storage of their own, then this data for complementary tuning is stored in a central electronic unit. The result of this is that a very close technical signaling connection is established between the electrically connected components which, it is assumed, will remain in working order throughout the entire life of the vehicle, for example.
Thus the present day sensors and control components have now become so reliable that the normal requirement for exchangeability of said sensors and control components, with which separate connectors are now in specific complementary attunement, is being questioned. Among such electronic components which, in the above manner, are so tuned to one another, are pressure controllers such as solenoid valves in the control devices of automatic transmissions.
With this existing background, the purpose of the invention consists of proposing an electrical and mechanical connection which can be simply and securely mounted, and is economical. The connection is to serve between an electronic control and a regulation device as well as between electrical or electronic components such as activators or sensors which first permit an electronic attunement between these components and second enable a vibration resistant electrical connection between the electrical lines to be connected.
Accordingly, the apparatus for connecting an electric or electronic component with at least one electrical line is placed on the surface of the housing of the said electric or electronic component and possesses at least one axially and/or radially electrical contacting surface, which stands in electrical or electronic communication with electrical or electronic components within the said component housing. In addition, each of these contacting surfaces can be electrically conductively connected with at least one electric conductor and, at the point of connection, can be permanently affixed by means of mechanical action. Advantageously, the contact surfaces in this arrangement can be placed upon an electrically non-conductive component housing or installed on an electrically, non-conducting surface on the component housing.
In regard to the electrical contact surfaces, it is to an advantage if these are constructed out of metal foil or perhaps are printed circuits and are directly or indirectly connected to the electrical line or lines leading into the component housing.
The electric or electronic component, for example, can be a sender of a measured signal, i.e., a sensor, an electromechanical positioning unit, or an electric and/or electronic actuator. The housing of the said electric or electronic component, for example, can be advantageously designed as a cylinder, as assumed hereafter, although other housing geometries can be employed for the placement of the invented contacting apparatus.
In the case of such a component housing, the contact surfaces are to be found on one of its end facings. If more than one contact surface is involved on the end facing, then the placement of the contact surface(s) can be on a circumferential surface of the component housing. Where such an embodiment of the invention is concerned, at least one of the contact surfaces adjacent to at least one other contact surface can at least be partially radially disposed, whereby an electrical insulation material is provided between the two said contact surfaces for the avoidance, in each case, of a short circuit.
It is possible, however, that on the end face of the component housing, the contact surfaces are strip like and arranged next to one another. This is done, even though one advantage of the invented contractor becomes lost, namely, that advantage wherein only a rough alignment of the end face contact surfaces to those of the to-be-contacted electrical lines is necessary.
Independent of the geometrical design of the contact surfaces on the end face of the component housing, it is advantageous if the contact surfaces are spaced widely from one another when in a radial arrangement. What is achieved by this constructive measure, is, that the points of contact are not on one single, flat surface, and thus the electrical insulation action is improved. In addition to this, in the case of such end-face arrangements, the electrical lines can be affixed more simply to the contact surface than would be the case with axially disposed, non-spaced contact surfaces. Thereby, the danger of a faulty mounting is minimized.
In another development of the invention, in order to increase the number of electrical lines which can possibly be contacted, contact surfaces are installed on the circumferential surface of the component housing and situated radially outward and with an axial spacing therebetween. These contact surfaces can be adjacent to one another or even on opposite sides of the said component housing.
In another embodiment of the invention, provision can be made that the component housing on that end face which is opposite to the end face contact surface, possesses a contractor with which the component can be affixed, either releasably or non-releasably, to another piece of equipment. The connector can then be designed as an axial projection of the component housing and carry a circumferential screw-threading. It is, however, just as possible that the component housing can be adhesively affixed to the housing of another component or soldered or welded permanently thereto.
In another embodiment of the invention, provision can be made that on the contact surfaces of the connection pieces connection pieces for electrical lines can be conductingly releasably and non-releasably installed so that, by means of these connection pieces, the electrical lines are especially easy to attach to the component. The connection pieces themselves are in electrically conducting union with the respective contact surfaces, for example, may be welded, soldered, bonded or affixed by an adhesive so that they are bound mechanically securely to the electrical contact surfaces. In addition to this, the said connection pieces may be so long that these can lead direct to the connection points of a transmission control apparatus, for example.
Additionally in the area of their respective contact surfaces, the connection pieces possess a bend or bridge section (hereinafter, “bridge section”) extending away from the contact surface. This bridge section is equipped with a first contact point which, as seen from the free end of the connection piece, is placed before the said bridge section and is installed in that position to be mechanically secure and electrically conductive. Insofar as a later necessity may call for the removal of such an electrical connection, then this can be accomplished by tearing off or cutting off the connection piece behind the first connection point on the bridge section. With a second connection point behind the bridge section, it is possible that on anotheroron the same contact surface, once again, a mechanically secure and electric conductive connection between the contact surface and the connection piece can be made. Consideration can also be given to the possibility that the connection piece can be shaped to conform to the contour of the component, in order to keep the arrangement and the number of the contact points flexible, for example.
The connection pieces themselves can be installed in the form of free, thin material strips or tracers, or as wires on either a flexible or a very rigid carrier material for electrical circuits (strip tracer boards or fiber circuit boards).
Finally, provision can be made, that at least one of the contact surfaces is interrupted or covered with an insulation layer, in an area, where this one contact surface is not transversed by a connection piece not intended for this one contact surface, or crossed by another non-insulated electrical line.
The invention will now be described, by way of example, with reference to the accompanying drawings in which:
Accordingly,
In addition, the housing 2 of the component 1 possesses a connector 5, which, penetrating through a boring in a housing wall 3 of another apparatus, can be securely affixed therein.
In the embodiment example of
Also provided here is at least one central, somewhat circular contact surface 21, as one can clearly see from the end view shown in
In addition,
In regard to the contact surfaces, notice should be taken that these consist of an electrical conducting material which, advantageously, is insulatedly carried on the component housing 2 or may be insulatedly secured by an adhesive. In addition, the contact surface material can be comprised of a metallic printed circuit or a more or less thick metal foil, for instance. In addition, one electrically conducting connection, extending from each contact surface, respectively, to the electrical apparatuses within the component housing 2, is to be found.
As may be plainly seen from the clear presentation of
However, provision can also be made that the connection-side ends of the connection pieces 10, 11, 18, as this is shown in the
As is demonstrated in
As can be seen in FIGS. 9 to 16, the invented contacting apparatus can also be so designed that all contact surfaces 34, 38, 394043, 53, 60 themselves extend radially outward from the component housing 2. Also, in this instance, connection pieces, which only have one or two contacting areas, can be used. As can be especially inferred from
Beyond the above,
A further embodiment of the invention is demonstrated in FIGS. 13 to 16. As seen here, the contact surfaces 40, 43, 53, 60 themselves extend radially outward as closed rings on the circumferential surface of the component housing 2. While two respective connection pieces, namely, 57, 58, and 70, 71, lie in the central area of the housing 2, closely adjacent to one another, and extend radially in the same direction and are connected with the contact surfaces 43, 60, and an additional connection piece 56, 58 is seated on the contact surface 53 of the axial projection 41, the fourth connection piece 59, 69 on the opposite side (dotted lines) of the component housing 2 is connected by contact surface 40 to a contacting area 51. Also, in this case, the connection pieces 56, 57, 58, 59 are provided with the angles 37, which each provide two contacting possibilities, while in the case of the apparatus in accord with
Finally, FIGS. 17 to 20 show further embodiment examples of the invention wherein, respectively, one contact surface is axial and another is radially aligned. Further, in
Even in this embodiment example of the invention, the advantage of not requiring an alignment is present during the equipment mounting.
Number | Date | Country | Kind |
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102 39 395.8 | Aug 2002 | DE | national |