EP1542319A2 - Electrical connector and plug-in connection - Google Patents

Abstract

The connector (11) has an insulating body incorporating at least one row of flat electrical contacts, having contact zones cooperating with corresponding contacts (14) within a connector socket (12) and conductor termination sections. The contact zones are provided at the ends of spring contact arms, acted on by tensioning sections, with the tensioning sections of each 2 adjacent contacts lying in different planes. An independent claim for an electrical plug-in connection is also included.

Description

The invention relates to an electrical plug-in device, especially for I / O interfaces on mobile phones, small computers od. Like. Devices that have a device socket for receiving the especially as a plug such as e.g. Device or cable plug comprise trained plug-in device, wherein the plug-in device an insulating body and a plurality of, in at least one Contact row arranged contacts with contact zones to includes electrical contacting of contacts of the device socket, wherein the contacts formed as flat contacts each one Conductor portion; a clamping section and a resilient, the contact zone having contact legs in with respect to the plugging direction of the plug-in device to each other have the following arrangement and with their narrow edges are arranged side by side.

The invention is based on a plug-in device, as for example is shown and described in DE 101 04 288 C1. To the Relevant prior art also includes those of the Patent owner distributed connector according to mentioned patent.

An essential feature of the present invention The prior art is within the connector in the Arrangement of narrow, elongated contacts, made of spring or Contact plate are made and in the plug in at least one level are provided approximately comb-like. there The contacts lie with their broadsides in the same plane and with their narrow sides next to each other. At their in the plugging the Plug-in front areas indicate the contacts Contact zones on which the corresponding contacts of the device socket pressure-sensitive and thus electrically conductive apply when the Plug device is plugged into the device socket.

The I / O interfaces mentioned at the beginning are around pluggable electrical connections, via the example a Mobile phone to a hands-free, a battery charger or a Data cable connected to the phone to connect a PC can be. In the course of progressive miniaturization of such Devices in which, despite the constant reduction of the devices more technical refinements are housed, stands for the arrangement I / O interfaces are getting less and less space available. It exists therefore an urgent need, the I / O interfaces and - with it connected - the plugs or connectors also to undergo even greater miniaturization.

Since the contacts of the plugs and connectors off resilient contact metal, e.g. punched out and by bending into the required or desired configuration must be brought, such contacts can be over barely reducing it to a certain extent. The requirement that the contacts, despite their small size still considerable contact forces have to pay attention to another noteworthy Contact miniaturization contrary. After all, one is in the state of Technology already at contact rest of approx. 1 mm and even below reached.

The object of the present invention is to provide a Plug device or connector to propose that at high Miniaturization grade and large pole density a reliable ensures electrical contact as well as by skillful Contact arrangement using very small building Device sockets permitted.

The invention solves this problem with a plug-in device the features of claim 1 and is accordingly by in that at least the clamping sections of each two in a contact row of successive contacts in different levels are arranged while the Contact legs of contacts of contact row their contact zones in have the same level.

The essential core of the invention is accordingly the Clamping sections (and possibly the conductor connection sections) of To accommodate contacts in the connector in at least two levels. The invention can be guided by the consideration, that the requirement of an extremely small device socket is not necessarily also requires an extremely small plug-in device. It is for reasons of space not necessarily disadvantageous if - as a result of Arrangement of the contacts in at least two levels - the Plug-in device increases a little in volume, especially since they always only temporarily connected to the device or the device with it is connected.

From the invention results especially the advantage that the clamping sections relatively wide and thus, especially in the Interest of the applied contact spring forces, stably executed and held particularly safe in the insulating body of the plug-in device or anchored. In contrast, the Contact legs in a desired narrow construction of the Be implemented device socket considering fineness.

According to one embodiment of the invention, it is provided that every other contact of a contact row is deformed such that the Clamping sections of all contacts alternately in each one of two different levels are arranged. The can deformed contacts each have at least one cranking. Related to a previously planned in one plane Contact arrangement are now at least their clamping sections e.g. arranged in two parallel planes. In each of the two levels the insulating body easily provides the required brackets, such as. Slit pockets or compartments, laying down the Contacts ready. Compared with a conventional plug-in device needs the overall height with otherwise unchanged interpretation only to increase the distance of the two said levels become.

According to one embodiment, the narrowed Contact in a transitional area between his Clamping portion and the contact leg, so that e.g. the for the Compliance with the required creepage distances and clearances Contact distances in the device socket complied easily can be.

In a further embodiment it is provided that a Increment of a contact is formed in an area in which the contact spring from the clamping section to the resilient Contact section tapered towards.

The width of the clamping sections of each contact can be in essentially correspond to the contact grid.

In the sense of simplified conductor connections within the plug-in device can be a further cranking of a contact in one Area between its clamping section and the free end its conductor connection section be provided, wherein the to the further cranking subsequent conductor connection section one defines another level, which is a greater distance from the level the untwisted contacts than the cranked contacts. Finally, the conductor connection sections can each two successive contacts of a row of contacts different be long or different distance from the respective Have clamping sections.

Then, the invention relates to an electrical connector, especially for I / O interfaces on mobile phones, small computers od. Like. Devices, comprising a device socket and a thereto suitable plug such as device or cable plug, the Appliance socket a to be attached to a circuit board Includes plastic housing in which contacts to the electrically conductive Connection between contacts of the plug and traces of Printed circuit board are received, further wherein the plug for Inserted in a customized socket of the device socket on the front has a plug-in approach, at least at one of his Surfaces with at least one resilient locking member such as Latch is provided, which with a counter-ratchet like Locking shoulder in the socket of the device socket as a detachable Locking the connector cooperates, the Restorgan is formed by a form of a strip, which is released by means of longitudinal cutouts from a spring plate, with but two Schmalenden cohesively with the spring plate remains connected, according to DE 101 04 288 C1.

While there the catch organs from that section of the Federblechs are formed, which of the contacts opposite broad side of the plug-in approach is assigned are now the catch organs on the narrow sides of the spring plate provided, so that the device socket particularly narrow or low can be executed. The arrangement of the locking members to the Narrow pages leads to a broadside arrangement too a volume reduction of the cross section of the connector.

A special feature is that the respective Gegenrastorgan of one from a sheet metal of the device socket cut window is formed, one being the window Exposed metal strip as an apron outside in front of the window is drawn. Unlike known detents, the one around Stamped window, here is the material to the Formation of the window is cut from the sheet, not removed, but remains as a tongue with his tongue root on the plate and is led outside in front of the window, where it forms a protection against the escape of particles or impurities from the window, the fall into the device and could lead to malfunction.

Fig. 1

eine perspektivische Ansicht einer Steckverbindung, die eine Gerätebuchse und als Steckvorrichtung einen Kabelstecker umfasst,

Fig. 2

eine perspektivische Ansicht nur der Buchse und des Steckansatzes der Steckvorrichtung nach Fig. 1,

Fig. 3

die Ansicht nach Fig. 2 mit gekuppelter Steckverbindung, wobei die Gerätebuchse teilweise ausgeschnitten ist,

Fig. 4

eine Unteransicht unter den Steckansatz der Steckvorrichtung, jedoch ohne Isolierstoffgehäuse bzw. Gehäuseumspritzung.

Fig. 5

einen Querschnitt gemäß Schnittlinie V-V in Fig. 4,

Fig. 6

einen Längsschnitt durch einen Kontakt ersten Typs gemäß Schnittlinie VI-VI in Fig. 4,

Fig. 7

einen Längsschnitt durch einen Kontakt zweiten Typs gemäß Schnittlinie VII-VII in Fig. 4, kontaktiert mit den Kontakten der Gerätebuchse,

Fig. 8

eine Aufsicht auf zwei benachbarte Kontakte mit Blickrichtung entsprechend Fig. 4.

Fig. 9

eine Seitenansicht zweier benachbarter Kontakte mit Blickrichtung entsprechend Fig. 6 oder 7,

Fig. 10

eine perspektivische Ansicht zweier benachbarter Kontakte, deren Kontaktzonen Kontakte einer Gerätebuchse beaufschlagen, und

Fig. 11

eine erheblich vergrößerte Darstellung der Verriegelung zwischen der Steckvorrichtung und der Gerätebuchse.

Moreover, the invention is best understood from the following description of an embodiment shown in the drawings. Show:

Fig. 1

a perspective view of a plug connection, which comprises a device socket and as a plug-in device, a cable connector,

Fig. 2

a perspective view of only the socket and the plug-in projection of the plug-in device according to Fig. 1,

Fig. 3

2 with coupled connector, the device socket is partially cut,

Fig. 4

a bottom view of the plug-in projection of the plug-in device, but without Isolierstoffgehäuse or Gehäuseumspritzung.

Fig. 5

a cross section along section line VV in Fig. 4,

Fig. 6

3 a longitudinal section through a contact of the first type according to section line VI-VI in FIG. 4, FIG.

Fig. 7

a longitudinal section through a contact of the second type according to section line VII-VII in Fig. 4, contacted with the contacts of the device socket,

Fig. 8

a plan view of two adjacent contacts with viewing direction corresponding to FIG. 4.

Fig. 9

a side view of two adjacent contacts with viewing direction corresponding to FIG. 6 or 7,

Fig. 10

a perspective view of two adjacent contacts whose contact zones act on contacts of a device socket, and

Fig. 11

a considerably enlarged view of the lock between the connector and the device socket.

To the total designated 10 connector include a plug 11 as a plug-in device and a device socket 12th

The device socket 12 is for installation in an electronic Device, e.g. a mobile phone, a small computer or the like. certainly. she comprises a plastic housing 13 in which a number of metallic contacts 14 is arranged. The contacts 14 are used with in Fig. 1 not visible end portions for contacting with there also not shown contacts of the plug 11. Your in Figs. 1 to 3 visible other ends are as SMD-Lötfüßchen or possibly as a soldering leg for connection to a not shown Printed circuit board formed. Shown is the contacting of Plug connection 10 in FIGS. 8 to 10.

The plug 11 comprises a plastic handle body 21 and a kink protection sleeve 22 for a to the plug 11th connected, not shown cable.

In Fig. 2, the distance between two contacts 14 of the device socket 12 designated 32. This also called grid Contact spacing 32 is highly miniaturized in the case of plug connections Equipment is naturally very small and is 1 mm or less.

The plug 11 has an insulating body 33 and a Embedded or anchored therein, the number of poles corresponding number of contacts 34 and 35. Contacts 34 and 35 are to cut out of contact plate so-called. Flat contacts, in a contact row with its broad surfaces in one plane and with their narrow sides are arranged close-to-close side by side.

Each contact 34 and 35 has - in each case in its longitudinal direction considered - a conductor connection section 36 and 37, a Clamping section 38 and 39 and a resilient contact legs 40 or 41 on. The free end of this resilient contact leg 40th or 41, as in particular FIGS. 6, 7, 9 and 10 illustrate deformed to form a defined contact zone 42. The contacts 34 and 35 are at their contact zones 42 at assembled connector 11, 12 pressure-tight on the corresponding contacts 14 of the device socket 12 (see FIG and 10).

Two each in a row of contacts consecutive Contacts 34 and 35 are different as described below designed.

All contacts 34 and 35 are initially common that the contact zones 42 of their resilient contact legs 40, 41 are arranged in the same plane. This level is referred to in the non-contacted state of the connector 11, 12 in Figs. 6 and 7 with E ₁ . The resilient contact legs 40 and 41 are biased against this plane E ₁ , so that they bend slightly upon contact of the contact zones 42 on the contacts 14 of the device socket 12 upwards, as shown in particular Fig. 9 shows this. In the contacting state, all the contact zones 42 of all the contacts lie on a plane designated E ₁ 'in FIG. 9, which lies a little above the plane E ₁ .

The contacts 34 are, as shown in FIGS. 6 and 7 and 8 to 10, executed substantially straight in its longitudinal direction, one sees once from the bent, the contact zones 42 defining ends. In the main, the contacts 34 extend in a plane E ₂ . In that regard, one can call the contacts 34 as 'undeformed' contacts.

The contacts 35, however, are anchored with their Endspannabschnitten 39 each in a deviating from the plane E ₂ level (E ₃ in Fig. 7) in the insulating body 33 of the plug 11. Therefore, the contacts 35 each have an offset 43 and may be referred to as 'deformed' contacts.

In a contact series follow in the embodiment respectively a contact 34 and a contact 35 alternately to each other.

Due to this design and arrangement, contacts 34 and 35 with relatively wide clamping portions 38 and 39 in the plug 11 housed and fixed, which is otherwise not possible would be, because when arranged in the same plane and at the same width the clamping portions 38 and 39 in the insulating body 33 of the Connector 11 does not have enough plastic material to hold the Contacts 34 and 35 would be available or to be provided.

This results in the essential advantage of the invention in that that the width of the contacts in one of the Fig. 8 with 44th designated length range can be very large, about equal to the contact distance 32. The area 44 closes the Clamping sections 38 and 39 and an initial section of resilient contact legs 40 and 41 a. As Fig. 8 further shows, the resilient contact legs 40 and 41 are then in Narrowed towards its free ends.

In the illustrated embodiment, the contacts 35 have yet another substantially S- or Z-shaped crimp 45 between the gripping portion 39 and the lead terminal portion 37 which defines another plane E ₄ (Figure 7). The conductor connection portion 37 of the contact type 35 is otherwise longer than the conductor connection portion 36 of the contact 34. In this way - see. In particular Figs. 4 and 8 - it is achieved that the stripped ends of the conductors to be connected can be soldered in a simple manner to the conductor connection sections 36 and 37, which are easily accessible in all respects.

Shown and described is a connector 10, wherein the contacts 14 in the device socket 12 as well as the contact zones 42 of the contacts 34 and 35 of the associated connector 11 are each arranged in a single row. This should be the rule for connectors of the type in question here. In this case, the clamping portions 38 and 39 of the contacts 34 and 35 are seen to be arranged in the two planes E ₂ and E ₃ .

If there are several parallel rows of contacts, is to make sure that within each contact row the contacts with their anchoring sections in different levels are arranged so that they with high pole density within the Insulating body 33 of the plug 11 housed and safe in it can be kept.

To secure the connector 10 after insertion of the plug 11 in the device socket 12 against unintentional Loosening has the plug-in projection 20 of the plug 11, a sheet 18 at whose narrow sides locking members 17 are formed, which with on the Metal bracket 15 of the device socket 12 cooperate.

The locking members 17 are as characteristics 24 of a metal strip 25 trained. The metal strips 25 are by means Longitudinal cut 26 exempted from the sheet 18. The peculiarity is that the two narrow ends 27 of the Sheet metal strip 25 remain connected to the plate 18. The catch organs 17 thus have no projecting end at which Hook foreign objects and bend the latching elements 24 could.

A metal strip 25 with expression 24 has a larger Length, as the only initially exempted by the free cuts 26 would have flat metal strips. By the deformation 24 Has formed an extra length, which leads to a certain material extension leads, which in turn requires a work hardening, which the Resting organ 24, especially on its surface, very firm and stable power.

The Gegenrastorgane 16 on the device socket 12 are respectively from a peripheral edge 28 of one in each side of the metal bracket 15th punched window 29 formed by cutting and Shaping a sheet metal strip 30 leaving the window 29 free. The metal strip 30 remains with its root 31 on the metal bracket 15th connected and is - as esp. From Fig. 11 clearly seen - outside the window 29 out. This closes the Sheet metal strip 30 - in particular together with the plug side Locking device 17 - the window 29, so that no contamination from Inside the device socket 12 can penetrate into the device.

Claims (10)

Electrical plug-in device (11), in particular for I / O interfaces on mobile telephones, small computers od. Like. Devices that comprise a device socket (12) for receiving the particular designed as a plug such as device or cable plug connector (11), wherein the Plug-in device (11) comprises a Isolierstoffkörper (33) and a plurality of arranged in at least one contact row contacts (34, 35) with contact zones (42) for electrically contacting contacts (14) of the device socket (12), wherein the formed as a flat contacts Contacts (34, 35) each have a conductor connection section (36, 37), a clamping section (38, 39) and a resilient, the contact zone (42) having contact legs (40, 41) with respect to the connecting direction of the plug device (11) to each other Having the following arrangement and are arranged side by side with their narrow edges, characterized in that at least the clamping sections (38, 39) each two in one r contact rows of successive contacts (34, 35) in different planes (E ₂ , E ₃ ) are arranged, while the contact legs (40, 41) of the contacts (34, 35) of the contact row their contact zones (42) in the same plane (E ₁ ). Plug-in device according to claim 1, characterized in that each second contact (35) of a contact row is deformed such that the clamping sections (38, 39) of all contacts (34, 35) alternately in each one of two different planes (E ₂ , E _3rd ) are arranged. Plug-in device according to claim 1 or 2, characterized in that the deformed contacts (35) each have at least one offset (43). Plug-in device according to claim 3, characterized in that the contacts (34, 35) narrow in a transition region between their clamping section (38, 39) and their contact zones (42). Plug-in device according to claim 3 or 4, characterized in that an offset (43) of a contact (35) is formed in a region in which the contact spring (35) tapers from the clamping section (39) to the contact zone (42). Plug-in device according to one of claims 3 to 5, characterized in that the width of the clamping sections (38, 39) of each contact (34, 35) substantially corresponds to the contact grid (32). Plug device according to one of claims 3 to 5, characterized in that a further Verkröpfung (45) of a contact (35) in a region between its clamping portion (39) and the free end of its conductor connection portion (37) is provided. Plug-in device according to Claim 7, characterized in that the conductor connection section (37) adjoining the further cranking (45) defines a further plane (E ₄ ) which has a greater distance from the plane (E ₂ ) of the unrolled contacts (34) as the cranked contacts (35). Plug-in device according to one of claims 1 to 8, characterized in that the conductor connection sections of each two consecutive contacts of a row of contacts are of different lengths or have different distances from the respective Einspannabschnitten. Electrical plug connection (10), in particular for I / O interfaces on mobile telephones, small computers or similar devices, comprising a device socket (12) and a matching plug (11) such as device or cable plug, wherein the device socket (12) on a printed circuit board to be mounted plastic housing (13), in which contacts (14) for electrically conductive connection between contacts of the plug (11) and conductor tracks of the circuit board are received, further wherein the plug (11) for insertion into a mating receptacle of the device socket ( 12) at the front has a plug projection (20) which is provided at least on one of its surfaces with at least one resilient latching member (17) such as latching lug, which with a counter-latching member (16) as latching shoulder in the socket of the device socket (12) as a releasable latching the plug connection (10) cooperates, wherein the latching member (17) is formed by a form (24) of a strip, the by means of longitudinal cutouts (26) from a spring plate (18) is free, but with two narrow ends (27) materially connected to the spring plate (18) remains, characterized in that at a flat in cross-section plug-in projection (20), the locking members (17) the narrow sides of the spring plate (18) are formed, and that the respective counter-latching element (16) is formed by a window (29) cut out of a sheet metal (15) of the device socket (12), wherein a sheet-metal strip (30) releasing the window (29) is formed. as an apron outside the window (29) is pulled.

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