EP2562882A2 - Plug-in gauge - Google Patents

Abstract

The device (1) has a plug unit (3) with a plug contact (13) electrically contactable with a measuring device e.g. continuity tester and voltmeter. A socket unit (4) with a socket housing (16) is electrically contactable with the measuring device. Cross-section of an aperture (15) in the socket housing is formed corresponding to cross-section of the plug contact. The arrangement of the aperture in the socket housing enables access to a socket contact within the housing and/or a connection opening is formed in the housing. The socket unit has the socket contact corresponding to the plug contact. An independent claim is also included for a plug device set.

Description

The invention relates to a plug gauge for connection to an electrical line system of a motor vehicle according to claim 1 and a plug gauge set according to claim 10.

For checking electrical lines in a motor vehicle, measuring devices, for example continuity testers or voltage measuring devices, are connected to an electrical line. For this purpose, it is customary to disconnect a plug connection and to connect the meter with the line contact to be tested and the associated line socket.

The meter is connected by means of a measuring device terminal to be connected to the line contact, while a measuring device contact is inserted in the cable socket.

Due to the large number of standardized line contacts, some of which differ only slightly from each other and therefore are difficult to distinguish from one another visually, a lead terminal that is incorrectly shaped, in particular too large, is often inserted into the lead socket. This can cause irreparable damage to the line socket, which ultimately require an exchange of the line plug in the motor vehicle, which is tedious and costly.

Furthermore, the meter connectors are usually connected via cable to the line connector. Due to vibrations caused by vibrations of the cable, in particular wobbling movements of the cables, the cable bushing can be widened by the measuring device contact connected to it or the cable plug can be bent by the measuring device terminal connected to it. Such damage is also irreparable and can only be remedied by an expensive and time-consuming replacement of the line plug. Another disadvantage is that in the extreme case by a Slipping / slipping of the measuring device terminal at the line contact can even cause a short circuit with another line contact, which causes damage to the measuring device or the vehicle electronics.

It is therefore an object of the invention to provide a device which enables a secure, simple and damage-free connection between a measuring device and a line connector on a motor vehicle.

This object is achieved by a plug gauge according to claim 1 and a plug gauge set according to claim 10. Advantageous developments of the invention are specified in the dependent claims.

The plug-in connector according to the invention for connection to an electrical line system of a motor vehicle has a pair of gauges with a plug-in contact with a meter electrically pluggable connector unit with a plug contact and an electrically contactable with the meter socket unit with a female housing and is characterized in that a cross section of a Opening in the socket housing is formed corresponding to a cross section of the plug contact.

Under a plug gauge according to the invention is the material measure, d. H. the embodiment of a physical dimension and a form of a male and female connector assembly - in this case, a cable connector with a line contact and a female connector in a motor vehicle - to understand.

For the purposes of the invention, electrically contactable means that an electrically conductive connection can be made or already exists. Under the connection of the plug gauge to an electrical system, both the production of an electrically conductive connection, which may already be given by a simple contact of electrically conductive contacts, as well as a mechanical connection to understand.

A plug contact and / or line contact is to be understood as meaning a first component of a plug which is inserted into a second component of a plug, a socket, can be introduced. The cross section of the plug contact is understood to be the cross section oriented perpendicular to the direction of insertion (longitudinal axis) of the plug contact into the socket opening. The most varied shapes and dimensions of the plug contact / line contact are conceivable. In particular, rectangular shapes are advantageous to use.

The corresponding opening is adapted in its cross-sectional geometry and its cross-sectional dimension to the cross-section of the plug contact. Ie. There should be no oversize or undersize between the cross section of the plug contact and the cross section of the opening. As a result, a substantially backlash-free insertion of the plug contact into the socket opening is possible, i. the socket opening is formed for the largely play-free recording of the plug contact.

Your function as a teaching receives the plug gauge in that the cross section of the plug contact corresponds to a cross section of a pipe connector belonging to a line contact and the cross section of the opening in the socket unit to the cross section of an associated with the line connector opening in a line socket.

In its function as a teaching, the socket housing can thus be pushed onto the line contact to be tested. If the socket housing fits without play on this line contact, the plug contact can also be pushed into the line socket that fits the line contact without damaging the line socket. Due to the particularly preferred exactly in the line socket suitable plug contact and also particularly preferably exactly matching the line contact opening in the socket housing is also advantageously a wobbling, in particular a tumbling of the connected to the line connector plug gauge prevented.

There are different embodiments of the female housing possible. The female housing may be composed of bodies having, for example, planar and / or curved surfaces which enclose a cavity. It is also possible to make the female housing as a solid block of material with a recess as an opening. In particular, the housing is formed particularly impact resistant.

According to one embodiment of the invention, the arrangement of the opening in the socket housing allows access to a arranged within the socket housing socket contact and / or there is a connection opening formed in the socket housing, which allows access to a arranged within the socket housing beech contact.

Both embodiments of the female housing (hollow body or solid block) allow the arrangement of the female contact within the female housing. In the solid embodiment of the socket contact is completely enclosed by the socket housing or embedded in this and thus fixed in position and location. In one embodiment, as a hollow body additional fixing devices for the socket contact in the socket housing are necessary.

To contact the socket contact with the plug contact electrically, an opening in the housing is necessary, which allows a connection of the plug contact with the socket contact. For this purpose, on the one hand in an advantageous manner, the existing opening that performs the function of a doctrine can be used, or there is an additionally formed to the opening port opening in the socket housing, which allows the connection of the plug contact with the socket contact. This further connection opening can also be formed as an additional gauge or be formed by a simple passage that allows access to the socket contact regardless of the shape and dimension of the plug contact.

Particularly preferably, the socket contact arranged in the socket unit is designed in such a way corresponding to the plug contact, that between the socket contact and the plug contact in the connected state, a non-positive and / or positive connection and an electrical contact exist. The electrical contact would already exist in a simple abutment of the respective contacts. The additional non-positive and / or positive connection allows a particularly secure positioning and secured against slipping or slipping connection between the plug contact and the socket contact and thus between the plug contact and the line socket contact and between the line contact and the socket contact.

For the purposes of the invention, force-locking means all connections in which a normal force acts on surfaces to be connected. These include, for example, all compounds that arise via friction, suction, magnetic or molecular forces (for example, adhesion forces). Under a positive connection, a compound is understood in which at least partially a relative movement between the components to be joined is prevented by engagement of the components. These include, for example, all snap, click, clamp, screw or hook connections.

In order to further minimize occurring movements of the connector plug inserted into the line plug, the plug gauge according to a development of the invention has a first contact surface on a plug housing and / or a second contact surface on the socket housing, wherein the respective contact surface is designed and arranged such in that the socket housing / plug housing is mounted in an installed position in a tilt-proof / reduced-tumble manner.

Under tilt-secured or taumelreduziert a situation is understood that reduces a tilting or caused by the tumbling of a cable movement of the plug housing or the female housing on the conductor plug or completely prevented.

The plug housing is part of the plug unit and designed according to the socket housing as a hollow body or as a solid block. The first and second abutment surface are advantageously formed corresponding to respective respective contact surfaces on a conductor plug. The first and / or second contact surface can therefore be arbitrarily shaped, for. B. be planed and / or, for example, have structuring, elevations, recesses and / or curvatures.

The outer shape of the surfaces can be adapted according to the spatial conditions in the conductor plug. Advantageously, particularly large contact surfaces are provided in order to enable a particularly secure installation of the plug housing / socket housing on the respective contact surface in the conductor plug.

According to one embodiment of the invention, the plug-teaching is characterized gekennzeich net, the plug contact protrudes from the first contact surface on the plug housing and / or the opening in the socket housing is arranged in the second contact surface and / or the contact surface of the plug housing and / or the socket housing is designed as a flat surface.

This development allows a particularly easy to manufacture and secure position of the connector housing / socket housing to the conductor plug. Since the respectively inserted plug contact / conductor contact rests with a contact surface on a contact surface of the printed circuit board / plug housing, a movement of the respective contact in the associated socket is prevented. Level contact surfaces are advantageously particularly easy to manufacture.

According to one development of the invention, the plug gauge has a connection unit which can be electrically contacted with a measuring device, the plug unit and / or the socket unit. The connection unit can be designed as a separate unit or integrally with the measuring device, the socket unit and / or the plug unit. In an example. One-piece design of the connection unit with the socket unit and the plug unit, the connection unit is electrically contacted via, for example, non-detachable cable with the plug unit and / or socket unit. Via a connection possibility to the connection unit, an electrical contacting of the measuring device with the socket unit and the plug unit is possible. The connection unit advantageously makes it possible to bundle the associated socket and plug unit. Also, a one-piece design with the measuring device is possible, in which the connection unit, for example, is integrated in the measuring device.

In a separate embodiment of the connection unit, this has in particular three connections for electrical contacting. These are in particular each formed as a plug or socket. Also, for example, the meter may be integrally formed with the terminal unit and for connecting the plug unit and the socket unit each having a plug and / or a socket. In particular, the connection unit is designed as a Y-turnout, which can be connected, for example, via a respective male-female cable with the measuring device, with the plug unit and the socket unit.

In an embodiment of the plug unit, socket unit and / or connection unit as separate units, a second connection unit corresponding to a first connection unit formed on the connection unit or the measuring device is particularly preferably formed on the plug unit and / or on the socket unit to one on the connection unit or the third connecting unit formed corresponding to the measuring device formed fourth connection unit.

A separate design of the respective unit allows, for example, in the event of damage replacement / repair of a single unit. In addition, the units are particularly flexible to use, so that, for example, the connection unit with other gauge pairs consisting of male / female units is used.

In this connection, for example, all conventional clamping, latching or plug-in connections for electrical contacting are understood as connecting elements in the electrical line system, in particular conventional plugs and sockets. The particular arrangement of the connection units (i.e., for example, plug or socket) on the plug unit, socket unit or connection unit is basically arbitrary, but this is preferably done using a cable. For example, at the plug unit, e.g. For example, a plug corresponding to a socket arranged on a connection unit can be formed directly or indirectly (with the aid of a cable). A reverse arrangement is conceivable. The same applies analogously to the socket unit.

It is also conceivable, for example, to arrange a plug or socket both on the plug unit and on the connection unit and to connect plug unit and connection unit to one another via an additional cable equipped with corresponding connection units.

The possible connections between the plug unit, socket unit, connection unit and / or measuring device are possible with all possible combinations of the connection units (in particular with plug and socket) directly or indirectly via a cable.

Alternatively, all-partly already described-connections between plug unit, socket unit, connection unit and / or measuring device can also be made in one piece (not detachable). Such a one-piece design is particularly easy to use and manufacture.

When used as a jig there is an increased risk that the opening in the socket housing is deformed or expanded by the insertion of too large line contacts. The teaching function can be impaired as a result. In order to ensure a particularly high level of occupational safety and to enable the permanent use of the plug gauge, the plug housing and / or the socket housing should be formed of an electrically non-conductive material with a large resistance to mechanical deformation. Particularly preferably, the plug housing and / or the socket housing are formed from a non-elastically deformable material, in particular an inelastic advantageously an impact-resistant plastic or a corresponding ceramic material or composite material.

Furthermore, the object is achieved by a plug gauge set having at least a plurality of gauge pairs, wherein each gauge pair has a plug unit with a plug contact and a socket unit with a socket housing and the plug unit and the socket unit each electrically contactable with a meter and each gage pair is formed such that a cross section of an opening in the female housing is formed corresponding to a cross section of the male contact and the gauge pairs are different from each other in the cross sections of the openings in the female housing and / or in the cross sections of the male contacts ,

In motor vehicles, a large number of electrical lines are present whose line connectors are shaped differently. The line plug in the automotive sector, however, are usually standardized across manufacturers. In order to connect different line plugs in a motor vehicle with a measuring device, a set of plug gauges is necessary, for each line plug a pair of gauges consisting of a plug unit and a socket unit is necessary. The plug-gauge set according to the invention thus comprises respectively differently designed line plugs a pair of gauges over which a secure connection of a measuring device with the respective electrical line system is possible. The plug-gauge set according to the invention thus allows the user in a particularly advantageous manner, the simple and safe control of different electrical wiring systems in a motor vehicle.

In order to be able to clearly distinguish the respective pairs of teachings, the plug unit and the socket unit of a first pair of teachings are identically, in particular visually similar, particularly preferably of the same color and different from a second pair of teachings according to an embodiment of the invention. This can be done, for example, via color-coded cables, housings or markings such as stripe or dot markings and / or numbering. This makes it advantageously possible to recognize the mutually associated and matched plug and socket units, without having to pay attention to the possibly difficult to recognize plug contact or the opening in the socket unit.

For example, for easy handling of the pair of gauges, it is possible to form a connection unit that can be electrically contacted with a measuring device, which is in each case designed to be electrically contactable with the plug unit and the socket unit. In the use of the male-female pair, the terminal unit improves the practicality of the male-female pair, and it is also possible to bundle the male and female units into a pair of gauges via the terminal unit.

The design of the socket unit, plug unit and a possibly existing connection unit can, as previously described, be done separately. In this case, only one terminal unit in a plug gauge set is necessary for handling the plug unit and the socket unit. Advantageously, however, a plug gauge set has a terminal unit for each pair of gauges. In an assignment of a connection unit per gauge pair and a one-piece design of the connection unit with the pair of gauges is possible.

Furthermore, all previously described embodiments, features and characteristics of the plug gauge for each gauge pair of the plug-gauge set are applicable.

• Fig. 1 eine schematisch dargestellte Ausführungsform einer erfindungsgemäßen Stecker-Lehre.

In the following, an embodiment of the invention is explained in more detail with reference to a figure: It shows

• Fig. 1 a schematically illustrated embodiment of a plug gauge according to the invention.

Fig. 1 1 shows a plug-in unit 1 according to the invention with a connection unit 2 designed as a Y-switch, a plug unit 3 which can be contacted electrically with the connection unit 2 and a socket unit 4 which can be contacted electrically with the connection unit 2. An electrically conductive first cable 5 is connected to the plug unit 3, which is electrically contactable and mechanically connectable to a first connection unit formed as a first connector 6 with a second connection unit arranged on the connection unit 2 and designed as a first socket 7.

By means of a second cable 8 connected to the socket unit 4, the socket unit 4 is designed to be electrically contactable and mechanically connectable by means of a third connection unit formed as a second plug 9 with a fourth connection unit arranged on the connection unit 2 and designed as a second socket 10.

The connection unit 2 also has a third socket 11, which is designed to connect a measuring device (not shown here). Alternatively, the plug unit 3 and the socket unit 4 can, for example, also be connected directly to a measuring device without the use of a separate connection unit.

The plug unit 3 consists of a right-angled connector housing 12 and a cross-sectionally also formed rectangular plug contact 13. The plug contact 13 protrudes from a first contact surface 14 and is electrically contacted with the first cable 5. The plug housing 12 is designed as a solid block made of plastic, ie the part of the plug contact 13 located inside the housing 12 and the part of the first cable 5 located inside the housing 12 is completely embedded in the material of the plug housing 12.

The cross-sectional dimensions of the plug contact 13 correspond to the cross-sectional dimensions of an opening 15 arranged in a socket housing 16. The plug contact 13 can be inserted without play through the opening 15 into the socket housing 16. The female housing 16 is formed as a square hollow body. The socket housing 16, like the plug housing 12, consists of an elastically non-deformable plastic, for example a thermosetting plastic. The opening 15 is disposed in a second abutment surface 17 of the female housing 16 and flat according to the first abutment surface 14, i. plan educated.

In a fully inserted through the opening 15 in the socket housing 16 plug contact 13, the first contact surface 14 and the second contact surface 17 are completely flat or flat to each other.

In the female housing 16, a female contact (not shown here) is arranged, which is electrically contacted with the second cable 8. The female contact is disposed within the female housing 16 below the opening 15. The opening 15 thus allows access to the socket contact. The female contact is formed corresponding to the male contact 13, i. the inserted through the opening 15 in the socket contact plug contact 13 with the socket contact produces a frictional and positive connection.

In the use of the plug teaching 1 is trying to postpone the opening 15 in the socket unit 4 on a line contact (not shown here) of a cable connector (not shown here) of a motor vehicle. If no backlash-free sliding be possible, the line socket (not shown here) does not correspond to the dimensions of the plug contact 13. Thus, no damage-free and secure connection of the plug gauge 1 with the line connector is possible.

If the opening 15 of the socket unit 16 can be slid onto the line contact without play, the line socket also corresponds to the cross-section of the plug contact 13. The plug contact 13 can thus be inserted into the line socket without causing damage to the line socket. After connecting the plug gauge 1 to the line connector, the first contact surface 14 is located at one of the line socket arranged contact surface completely, so that a wobbling of the plug unit 3 is prevented at the line socket. Between the plug contact 13 and an existing in the line socket line socket contact (not shown here) is made a non-positive and positive connection. Likewise, a non-positive and positive connection with the inserted through the opening 15 in the socket housing 16 line contact is made between the located in the female housing 16 socket contact. The second bearing surface 17 on the female housing 16 is flat against a contact surface of the cable connector, so that a wobble between the female housing 16 and line connector is prevented. Via the third socket 11 on the connection unit 2, a measuring device can be connected which, for example, measures the voltage or current applied to the line to be tested or, for example, checks the operability of the line to be checked as a continuity tester.

Claims (11)

Plug-gauge for connection to an electrical line system of a motor vehicle, with a pair of gauges with - One with a measuring device electrically contactable plug unit (3) with a plug contact (13) and a socket unit (4) which can be contacted electrically with a measuring device, with a socket housing (16),
characterized in that - A cross section of an opening (15) in the socket housing (16) corresponding to a cross section of the plug contact (13) is formed. Plug-in jig according to claim 1, characterized in that the arrangement of the opening (15) in the beech housing allows access to a arranged within the socket housing socket contact and / or a connection opening in the socket housing (16) is formed, the access to one within the Buchensgehäuses (16) arranged beech contact allows Plug gage according to one of the preceding claims, characterized in that the socket unit (4) has a plug contact (13) corresponding socket contact, wherein the socket contact and the plug contact (13) are formed such that between the socket contact and the plug contact (13 ) in the connected state, a non-positive and / or positive connection and an electrical contact exists. Plug gauge according to one of the preceding claims, characterized by a first contact surface (14) on the plug housing (12) and / or a second contact surface (17) on the socket housing (16), wherein the respective contact surface (14, 17) is formed and arranged is that the socket housing (16) / plug housing (12) is mounted in a mounting position tilted / taumelreduziert. Plug gauge according to one of the preceding claims, characterized in that - The plug contact (13) on the plug housing (12) from a first contact surface (14) protrudes and / or - The opening (15) in the socket housing (16) in a second bearing surface (17) is arranged and / or - The respective contact surface (14, 17) of the plug housing (12) and / or the female housing (16) is formed as a flat surfaces. Plug gland according to one of the preceding claims, characterized by a connection unit (2) which can be electrically contacted with a measuring device, the plug unit (3) and the socket unit (4). Plug gauge according to one of the preceding claims, characterized in that a second connection unit (6) corresponding to a first connection unit (7) formed on a connection unit (2) and / or the measuring device is formed on the plug unit (3) and / or - A fourth connection unit (9) corresponding to a third connection unit (10) formed on a connection unit (2) and / or the measuring device is formed on the socket unit (4). Plug gauge according to one of the preceding claims, characterized in that the plug unit (3) and the socket unit (4) are designed as separate units. Plug gauge according to one of the preceding claims, characterized in that the plug housing (12) and / or the socket housing (16) is formed from a non-elastically deformable material, in particular an inelastic plastic or a ceramic material. A plug gauge set having at least a plurality of gauge pairs, wherein - Each pair of gauges has a plug unit (3) with a plug contact (13) and a socket unit (4) with a socket housing (16) and the plug unit (3) and the socket unit (4) are each electrically contacted with a measuring device and - Each pair of gauges is designed such that a cross section of an opening (15) in the socket housing (16) is formed corresponding to a cross section of the plug contact (13) and - The different gauge pairs differ from each other in the cross section of the opening (15) in the socket housing (16) and / or in the cross section of the plug contact (13). Plug gauges set according to claim 10, characterized in that the plug unit (3) and the socket unit (4) of a first pair of gauges are identically, in particular visually similar, preferably of the same color and different from a second pair of gauges.

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