EP3109946B1 - Mqs connector - Google Patents

Description

The invention relates to an MQS plug and a method for producing an MQS plug.

MQS stands for "Micro-Quadlock System" and refers to a particular type of connector with a variety of electrical contacts. MQS connectors are characterized by high resistance to mechanical stress. Several MQS plugs are waterproof and relatively compact in construction.

Because of this, MQS connectors are mainly used in the automotive field, namely as junction boxes for car radios, car navigation systems, etc. In such designed as terminal boxes MQS plugs, a plurality of contact pins is soldered to a circuit board.

From the document EP 2 230 726 A1 For example, an electrical connector is known as an MQS plug having a housing and a plurality of contacts protruding out of the housing on one side.

The document US 2006/0134975 A1 relates to a connector in which four rows of angled contact pins for contacting a board protrude from a connector back.

The document US 5,336,109 concerns two connectors arranged one above the other, from whose connector back sides a plurality of rows of angled contact pins projecting one above the other protrude for contacting a printed circuit board.

The invention has for its object to provide a compact MQS plug the to provide the initially named type.

This object is solved by the subject matters of the independent claims. Preferred embodiments are the subject matters of the dependent claims.

A first aspect relates to an MQS plug having a plurality of contact pins configured and arranged for contacting and soldering to a circuit board. The contact pins protrude in a contact direction out of the MQS plug. The contact pins project homogeneously out of the MQS connector. In particular, the contact pins can protrude so homogeneously ordered from the MQS plug, that the circuit board heats up substantially homogeneously when soldering the contact pins to the circuit board.

The MQS plug can be designed as a connection box. The contact pins are designed as electrical contact pins and are used for electrical and mechanical contacting of the circuit board on which they are soldered. In particular, the contact pins serve to be soldered to a PCB circuit board, where PCB stands for "Printed Circuit Board". For this purpose, the contact pins can be inserted into provided and formed receptacles and / or holes of the printed circuit board, where they are soldered to the circuit board, whereby an electrical contact is made. Since the circuit board is substantially planar, the contact pins are at least partially formed so that they are all aligned parallel to a contact direction in which they point away from the MQS connector. The contact pins are at least partially substantially parallel to each other and formed parallel to the contact direction.

The MQS plug is designed and intended to be moved in the direction of contact with the printed circuit board, first with the contact pins protruding from the MQS plug. Thus, the contact pins can be moved and / or arranged on the printed circuit board and / or through associated receptacles and / or holes of the printed circuit board, where the contact pins are soldered to the printed circuit board. The contact direction away from the MQS plug approximately in the solder on a MQS connector facing the flat side of the circuit board.

The MQS plug has at least ten contact pins as "plurality of contact pins", preferably at least twenty contact pins, more preferably at least forty contact pins. All of these contact pins have at least one end out of the MQS plug, essentially in the contact direction.

Since the contact pins are designed and intended to be soldered to a printed circuit board, the contact pins in conventional MQS plugs of this type initially protrude randomly and out of the MQS plug. In the MQS plug according to the invention, however, the contact pins are arranged so homogeneously before soldering to the circuit board that they are homogeneously distributed in Contact direction protrude from the MQS connector. The contact pins are upstream and preceded. This pre-order and pre-alignment remains at the first mechanical contacting the circuit board obtained, just as when soldering to the circuit board.

The arrangement of the contact pins is designed in such a way that the printed circuit board heats up substantially homogeneously when soldering the plurality of contact pins to the printed circuit board. "Heat substantially homogeneously" means that the temperature gradient measured over the surface area of the circuit board, with which the contact pins are soldered, is as low as possible and can assume a local and / or absolute minimum. Substantially homogeneous means, in particular, that there is no local temperature maximum on the printed circuit board during soldering due to contact pins arranged very close to one another, that is to say due to clusters of contact pins. Thus, only at each contact pin results in a low local temperature maximum, but no longer an extreme temperature maximum due to a cluster of contact pins. The individual contact pins are so homogeneously spaced from each other that results in a substantially uniform temperature distribution over the entire region of the circuit board, are soldered to the contact pins on her. Of course, at the edges of this area the field is no longer homogeneous, because there the temperature decreases in the direction away from this soldering area, since no further soldering operations take place outside this area.

The orderly and homogeneous distribution of the contact pins, the temperatures of local temperature maxima are reduced, and thus the burden of the circuit board. In this case, the contact pins can even be arranged closer to one another than in the case of conventional MQS plugs. Due to this homogeneous distribution, the total area required for soldering on the circuit board is reduced and a particularly compact design of the MQS connector is made possible.

It should be noted that the majority of contact pins no contact pins for Produce a connector, but contact pins for making a solder joint. Overall, the homogeneously ordered contact pins require less space than before on the circuit board, as they protrude more uniformly and narrower than previously known from the MQS plug.

According to one embodiment, the contact pins, each having a contact end, protrude out of the MQS plug substantially evenly distributed, such that each contact end has at least two adjacent contact ends substantially the same distance perpendicular to the contact direction. The two adjacent contact ends are nearest neighbors. Thus, each contact end has at least two nearest neighbors. A contact end can also have three, four or more nearest neighbors, depending on the arrangement of the contact ends of the contact pins. However, the contact pins are at least arranged so that no contact pin has only one nearest neighbor. As a result, a clear and fixed order of all contact pins of the plurality of contact pins is provided, which results in a particularly homogeneous solder image.

According to one embodiment, the contact pins each protrude out of the MQS plug with one contact end, wherein the contact ends are at least partially arranged in rows and / or columns. Here, the contact pins may be divided into groups and / or subgroups, each forming a row and / or column. The arrangement in rows and / or columns leads to a particularly favorable homogeneous distribution of the contact ends of the contact pins, which therefore leads to a particularly homogeneous heating during soldering to the printed circuit board.

According to one embodiment, the MQS plug has at least one plug-in surface, into which in each case one plug-in end of the contact pins are plugged in substantially perpendicular to the at least one plug-in surface and parallel to a plug-in direction. Here, the at least one mating surface is arranged in a plane parallel to the direction vector of the contact direction and the contact pins are bent by about 90 °, that in each case a contact end of the contact pins is arranged parallel to the contact direction. The at least one mating surface can be multi-part be formed and thus consist of several mating surfaces. It serves for inserting the plug ends of the contact pins. The contact pins each have a plug-in end which is plugged into the at least one mating surface on the MQS plug, and a contact end, which protrudes homogeneously from the MQS plug. The contact end is the end of the respective contact pin, which is designed for soldering and contacting the circuit board. The at least one plug-in surface can be multi-part, in particular have at least two parts, which are formed in a plane parallel to the contact direction. The individual contact pins have a 90 ° bend and are essentially L-shaped. They are each plugged with their mating end as the first arm of the "L" in the at least one mating surface. With the contact end as the second arm of the "L", they point out of the MQS connector in the contact direction. The use of substantially L-shaped contact pins and the plug-in surface arranged as described enables a particularly homogeneous and ordered arrangement of the contact pins in and on the MQS plug.

In a development of this embodiment, a front side group of the plurality of contact pins is inserted into a front side of the at least one plug-in surface, and a rear side group of the plurality of contact pins is inserted into a rear side of the at least one plug-in surface. The plurality of contact pins is divided into at least two groups in this embodiment, namely the front side group and the rear side group. The front side group is inserted with the plug in advance in the front of at least one mating surface, while the rear side group is plugged with the mating end ahead in the back of at least one mating surface. Thus, the mating ends of the contact pins of the rear side group have exactly the opposite direction as the mating ends of the contact pins of the front side group. The mating ends of both of these groups are, however, arranged parallel to the direction of insertion. The choice of the terms front and back is here arbitrary and refers to a first and second side of the mating surface, both sides, so the front and the back lie in a plane which is arranged parallel to the direction vector of the contact direction. The front can eg as a housing outside of the MQS connector may be formed, while the back may be formed as a housing inner side of the MQS connector. By dividing the plurality of contact pins into at least one front side group and at least one rear side group, there is an efficient pre-arrangement of the contact pins.

In a further development of this embodiment, the contact ends of the contact pins of the front side group are arranged offset to the contact pins of the rear side group, offset in one direction, e.g. an offset direction, perpendicular to the contact direction and perpendicular to the direction of insertion. This offset, so this arrangement of contact pins front side group "gap" to the contact pins of the rear side group, makes it possible to insert the mating ends of the contact pins of the different groups (ie the front side group and the rear side group) particularly compact to about the same height in the mating surface. The contact pins of the front side group and the contact pins of the rear side group can be inserted without an offset to each other in the direction of propagation of the mating surface in the mating surface. The contact pins, and thus also the mating ends of the contact pins, are arranged offset in relation to one another in this offset direction such that the individual contact pins make contact neither physically nor electrically. This "gap-to-gap" arrangement allows (a) a compact design of the MQS connector, and also (b) the formation of multiple rows of contact pins of the front group and multiple rows of contact pins of the back group.

In a further development of this embodiment, the contact pins of the front side group are subdivided into at least two front side subgroups, and the contact pins of each front side subgroup are plugged into the front side of the at least one slot each in a row. In this case, the rows of each front side sub-group on the front side of the at least one mating surface in the contact direction are spaced from each other. The plurality of contact pins is thus not only divided into a front side group and a rear side group, but also the front side group is further divided into at least two Front subgroups. The contact pins of each front sub-group are arranged in a row, ie the mating ends of the contact pins of a front sub-group are arranged in a row, which is arranged for example perpendicular to the direction vector of the contact direction on the front of the at least one mating surface and plugged into this. The rows are spaced apart in the contact direction. This means that the plug-in ends of the contact pins in an operating position have a distance from the printed circuit board, which depends on the affiliation to the respective front side sub-group. The subdivision into front subgroups further increases the order of the contact pins, further increasing the degree of order of the contact pins.

Additionally or alternatively, the contact pins of the backside group can also be subdivided into at least two backside subgroups. In this case, the contact pins of each rear sub-group are respectively inserted in a row in the back of the at least one mating surface, wherein the rows of each rear sub-group on the back of the at least one mating surface in the contact direction are spaced from each other. For the rows of back subgroups, what has been done to the rows of contact pins of the front subgroups applies. Also, the rows of backside subgroups may be spaced apart in front of the rows of the front subgroups in the contact direction. The rows of the respective subgroups in this case relate to arrangement forms of the plug ends of the respective contact pins in or on the front or rear side of the at least one plug-in surface. The degree of order of the contact pins is also increased by the division of the contact pins of the back subgroup into at least two back subgroups.

In this case, each front sub-group and / or each rear-side sub-group can have between 10 and 20 contact pins. In this case, the front-side sub-groups may have a different number of contact pins than the rear-side sub-groups. The front subgroups can all have the same number of contact pins, or different numbers of contact pins. Likewise, the back subgroups may all have the same number of contact pins or different lots.

In one of the embodiments with the front subgroups and / or back subgroups, the contact ends of the contact pins of the front subgroups and / or the rear subgroups in each row may protrude from the MQS connector, with the rows of the contact ends of each front subgroup and / or each back subgroup in the plugging direction are spaced. In this embodiment, the rows of mating ends on the at least one mating surface are associated with a series of contact ends of the same contact pins which are designed and intended to be soldered to the circuit board. The arrangement of the contact pins in front subgroups and / or back subgroups allows for an orderly division and arrangement of the contact ends of the contact pins in rows. These individual rows may be formed spaced apart in the insertion direction. This allows a particularly efficient order of contact pins. In addition, this training a particularly simple and orderly production of the MQS connector with a high degree of order of the contact pins possible.

In a further development, the contact pins of the rear side group are inserted with their contact end approximately parallel to the contact direction in slots in the at least one mating surface. It may be a part of the at least one mating surface, are plugged into the mating ends of the front side group approximately parallel to the insertion direction, and the contact ends of the rear side group approximately parallel to the contact direction K. For this purpose, corresponding inserts can be formed in this part of the at least one mating surface be for the respective plug and contact ends of the contact pins. The mating ends of the front side group are plugged "gap" to the contact ends of the back page group.

According to one embodiment, the plurality of contact pins is a number from 20 to 120, preferably from 30 to 80. This is a typical number of Contact pins for MQS connectors, which are designed as terminal boxes. The number of contact pins is already so high that a non-homogeneous and non-upstream arrangement of the contact pins leads to an extremely inhomogeneous soldering on the guide plate, which can lead to stress and damage to the circuit board.

According to one embodiment, the contact pins are formed as stamped contacts and / or as thermally broken wires. This type of electrical contact pins can be bent particularly favorable and / or install particularly stable as pre-bent contacts in an MQS plug or insert.

A second aspect relates to a method of manufacturing an MQS plug having a plurality of contact pins configured and arranged for contacting and soldering to a printed circuit board, the contact pins projecting out of the MQS plug in a contact direction. In the method, the contact pins are so homogeneously arranged on the MQS plug that they protrude so homogeneously ordered from the MQS connector, that the circuit board heats up substantially homogeneously when soldering the contact pins to the circuit board. After arranging the contact pins on the MQS connector, it can be soldered to the PCB. The method is used in particular for producing an MQS plug according to the first aspect. Therefore, all embodiments and in particular all embodiments of the first aspect also relate to the method according to the second aspect.

In one embodiment of the method, the contact pins are each plugged into at least one mating surface of MQS plug so that they are arranged with the plug end substantially in the solder on the at least one plug face and parallel to a plug-in direction, wherein the plug surface in a Level is arranged parallel to the direction vector of the contact direction. Inserting the plug-in ends can be done, for example, in the plug-in direction with the plug in advance. However, the insertion can also take place such that the contact pins, for example, with their contact end in slots, for example in the form of grooves, be inserted so that the mating end of the respective contact pin is arranged at a predetermined target position, in which the mating end is arranged parallel to the insertion direction. In this position, the plug-in end in the MQS plug can be electrically contacted while the contact end in the contact direction protrudes from the MQS plug for soldering to the printed circuit board.

In a further development of this embodiment, a portion of the contact pins is bent by about 90 ° after insertion into the at least one mating surface such that in each case a contact end of this portion of the contact pins is arranged parallel to the contact direction. This proportion of contact pins can thus be plugged into the at least one plug-in area substantially in an elongated form. Subsequently, the initially elongated contact pins are bent by 90 ° so that the contact end of the contact pins facing in the contact direction. The mating end of the contact pins remains plugged into the mating surface in the insertion direction.

Alternatively or additionally, a portion of the contact pins when plugged into the at least one mating surface can be bent so by about 90 °, that after insertion into the at least one mating surface in each case a contact end of this portion of the contact pins is arranged parallel to the contact direction. In other words, this portion of the contact pins is already pre-bent when it is plugged into the mating surface. The two types described can be combined. Thus, a group or subset of elongate contact pins can be re-inserted with the plug and then bent as described while one or more other groups or sub-sets of pre-bent contact pins are inserted into the at least one plug-in surface.

The invention also relates to an MQS plug system with an MQS plug according to the first aspect and a printed circuit board with which the contact pins are soldered homogeneously ordered.

Figur 1

eine perspektivische Darstellung eines ersten MQS-Steckers;

Figur 2

einen Querschnitt durch den ersten MQS-Stecker;

Figur 3

eine homogene Anordnung von Kontaktenden von Kontaktpins, die aus einem MQS-Stecker herausragen;

Figur 4a

in einer perspektivischen Darstellung einen Ausschnitt des ersten MQS-Steckers, in den Kontaktpins einer ersten Vorderseitenuntergruppe eingesteckt sind;

Figur 4b

in einer perspektivischen Darstellung einen Ausschnitt des ersten MQS-Steckers, in den Kontaktpins einer ersten und zweiten Vorderseitenuntergruppe eingesteckt sind;

Figur 4c

in einer perspektivischen Darstellung einen Ausschnitt des ersten MQS-Steckers, in den Kontaktpins einer ersten und zweiten Vorderseitenuntergruppe und Kontaktpins einer ersten Rückseitenuntergruppe eingesteckt sind;

Figur 4d

in einer perspektivischen Darstellung einen Ausschnitt des ersten MQS-Steckers, in den Kontaktpins einer ersten und zweiten Vorderseitenuntergruppe und Kontaktpins einer ersten und zweiten Rückseitenuntergruppe eingesteckt sind;

Figur 5

eine perspektivische Darstellung eines zweiten MQS-Steckers;

Figur 6

eine perspektivische Darstellung eines Ausschnitts des ersten MQS-Steckers und

Figur 7

eine perspektivische Darstellung eines Ausschnitts des zweiten MQS-Steckers.

The invention will be described in more detail below with reference to embodiments shown in FIGS. Individual features of the in the figures shown embodiments may be realized in other embodiments. Some of the same or similar features of the embodiments are denoted by the same reference numerals. Show it:

FIG. 1

a perspective view of a first MQS connector;

FIG. 2

a cross section through the first MQS connector;

FIG. 3

a homogeneous arrangement of contact ends of contact pins that protrude from an MQS plug;

FIG. 4a

in a perspective view of a section of the first MQS connector, are plugged into the contact pins of a first front sub-group;

FIG. 4b

in a perspective view of a section of the first MQS connector, are plugged into the contact pins of a first and second front side sub-group;

Figure 4c

a perspective view of a portion of the first MQS connector, are plugged into the contact pins of a first and second front sub-group and contact pins of a first rear sub-group;

FIG. 4d

a perspective view of a portion of the first MQS connector, are plugged into the contact pins of a first and second front sub-group and contact pins of a first and second rear sub-group;

FIG. 5

a perspective view of a second MQS connector;

FIG. 6

a perspective view of a section of the first MQS connector and

FIG. 7

a perspective view of a section of the second MQS connector.

FIG. 1 shows a perspective view of a first MQS connector 1. The MQS connector 1 has a housing 5 and is designed as a connection box. From one side of the MQS connector 1, in the in FIG. 1 shown embodiment of the bottom of the MQS connector 1, projects a plurality of contact pins 10 from the MQS plug 1 out. The MQS plug 1 is designed and intended to be soldered to a circuit board (not shown). In particular, the MQS plug 1 can be plugged onto the circuit board, wherein the contact pins 10 are inserted in the contact direction K in openings provided for this purpose of the circuit board and soldered there. The contact direction K has essentially in the solder from an outer side of the housing 5 of the MQS connector 1, in the in FIG. 1 shown embodiment in the solder from the bottom of the MQS connector. 1

FIG. 2 shows a cross section through the MQS connector 1, which in FIG. 1 is shown. The contact pins 10 have a contact end 11 in the contact direction K. All of the contact pins 10 are formed substantially L-shaped. In this case, an arm of this "L" is formed as a plug-in end 11 and extends from the 90 ° bend in the contact direction K to the end of the contact pin 10. The second L-arm is formed as a plug-in end 12 and extending from the 90 ° Bend to the other end of the respective contact pin 10th

The MQS plug 1 has a first plug-in surface 6, which can be designed as a circuit board and / or printed circuit board, for example as a PCB. This first mating surface 6 is also in, for example FIG. 1 shown. The first plug-in surface 6 may be formed substantially as large as a housing wall of the MQS plug 1. The first mating surface 6 is formed in the form of a plate which is arranged in a plane parallel to the direction vector of the contact direction K. By this arrangement, the first mating surface 6, the mating ends 12 of all L-shaped contact pins 10 are aligned substantially in the solder on that plane in which the mating surface 6 is arranged. The mating surface 6 may also be formed as a housing wall of the housing 5.

In FIG. 2 Furthermore, a second mating surface 7 of the MQS connector 1 is shown, which is arranged in a plane which is arranged parallel to the plane of the first mating plane 6. The first mating surface 6 may together with the second mating surface 7 form a single mating surface, or, as in the embodiment shown in the figures, be formed in two parts. The two mating surfaces together form a two-part mating surface, the individual mating surfaces 6 and 7 are offset from each other in parallel, perpendicular to the contact direction K and in the solder on the two mating surfaces.

A first group of contact pins 10, a front side group 15, is inserted into the front side of the second plug-in surface 7. A second group of contact pins 10, namely a rear side group 17, is inserted into the rear side of the first plug-in surface 6. Overall, the contact pins 10 are arranged so efficiently and homogeneously that the in FIG. 3 shown plug-in image of the contact pins 10 results. In FIG. 3 only the arrangement of the contact ends 11 of the contact pins 10 is shown. Thus, it is not considered in more detail the arrangement of the entire contact pins 10, but only the arrangement of the contact ends 11 of the contact pins 10 so homogeneously ordered in the contact direction of the MQS plug 1 protrude that results in a homogeneous heating during soldering with the guide plate.

In the in FIG. 3 shown plug-in contact pins 10 so evenly distributed out of the MQS plug out that each contact end 11 to at least two adjacent contact ends 11 has substantially the same distance perpendicular to the contact direction K. In this case, the two adjacent contact ends 11 are nearest neighbors. Thus, each contact end 11 has at least two nearest neighbors, such as the contact ends in the corners of the plug-in image. Contact ends 11 further inside the plug-in image can also have, for example, three or more nearest neighbors.

This homogeneous arrangement of the contact pins is in the plug of the FIG. 3 shown. Clearly visible is the subdivision into the contact pins of the front group 15 and the contact pins of the back group 17. As in FIG. 2 can be seen, the contact pins of the front side group 15 are plugged into a plug-in direction S with the plug-in end 12 first in the second slot 7. Conversely, the mating ends 12 of the contact pins of the rear side group 17 are inserted in the opposite direction in the back of the first mating surface 6, ie opposite to the insertion direction S. The insertion direction S is substantially perpendicular to the contact direction K and has substantially in the lot on the two mating surfaces 6 and 7 ,

In the embodiments shown in the figures, the contact pins 10 are not only divided into the front side group 15 and the rear side group 17, but they are further divided into subgroups. Thus, the front side group 15 has contact pins 10 of a first front side subgroup 15a and a second front side subgroup 15b. Likewise, the rear side group 17 also has contact pins 10 of a first rear side subgroup 17a and a second rear side subgroup 17b. Each of the rear side subgroups 17a and 17b has in each case 18 contact pins 10. The contact pins of each of the subgroups 15a, 15b, 17a and 17b are arranged in a row. This series arrangement applies to both in FIG. 3 shown contact ends 11 of the contact pins 10, as well as for the mating ends 12 of the contact pins 10, which are inserted into the first and second mating surface 6 and 7 respectively. There, the sockets 12 are electrically contacted with terminals of the first MQS connector. 1

In FIGS. 4a to 4d It is shown in which order the contact pins 10 are inserted or inserted or installed in the two mating surfaces 6 and 7 of the MQS connector 1. The FIGS. 4a to 4d show four successive manufacturing steps of the MQS connector 1, in particular the four manufacturing steps in which the contact pins 10 of one of the four subgroups are respectively arranged on the MQS connector 1. In general, the contact pins 10 of a subgroup are arranged on the MQS plug 1 in each case in one production step.

In FIG. 4a It is shown that initially only the contact pins of the first front side subgroup 15a are inserted into the second slot 7. For this purpose, the contact pins can be inserted with the plug-in end 12 first into corresponding slots in the first plug-in surface. Subsequently, the contact end 11 of each contact pins 10 can be bent by 90 ° relative to the mating end 12, so that the in Fig. 4a shown L-shape results.

The contact pins 10 may also be bent before they are inserted into the second slot 7. All sockets 12 of the contact pins of the first Front sub-group 15a are arranged substantially in a row and / or a line. This row and / or line runs on the surface of the second plug-in surface 7 and is substantially perpendicular to both the contact direction K and the plug-in direction S. Also, the contact ends 11 of all contact pins 10 of the first front-side sub-group 15a are in a row and / or on one Arranged straight. Thus arranged, the contact ends 11 of the first front side sub-group 15a are formed and provided to be soldered to the circuit board (not shown).

FIG. 4b shows the same section of the MQS connector 1, which is also in FIG. 4a is shown. In addition to the contact pins of the first front side subgroup 15a, in the FIG. 4b shown manufacturing step, the contact pins of the second front side subgroup 15b inserted into the second mating surface 7 of the MQS connector 1. In this case, in each case a contact pin of the second front side subgroup 15b is arranged above a contact pin of the first front side subgroup 15a. In other words, the first front-side sub-group 15a and the second front-side sub-group 15b have exactly the same number of contact pins 10, in the example shown in the figures, 12 contact pins each. The contact pins of the second front side subgroup 15b are inserted into the second slot 7 after the contact pins of the first front side subgroup 15a. Conversely, access to bays in the second mating surface 7 for the contact pins of the first front side subset 15a would be blocked by the contact pins of the second front side subset 15b.

In Figure 4c It is shown how, in addition to the contact pins of the first and second front side subgroups 15a and 15b, the contact pins of the first rear side subgroup 17a are also installed on the MQS connector. In the FIGS. 4a to 4d is not the first mating surface 6 is not shown but omitted to allow a better view of the contact pins of the first and second rear sub-group.

In FIG. 4d is in the last manufacturing step, the contact pins of the second Rear subset 17b inserted into the MQS connector 1. Also, the contact pins of the second rear side subgroup 17b are installed via the contact pins of the first rear side subgroup 17a, similarly to the contact pins of the first and second front side subgroups 15a and 15b.

Thus, the contact pins of the second rear side subgroup 17b have longer plug ends 12 and longer contact ends 11 than the contact pins of the first rear side subgroup 17a. Similarly, the contact pins of the second front side subgroup 15b have longer mating ends 12 and longer contact ends 11 than the contact pins of the first front side subgroup 15a. It is thereby achieved that the contact ends 11 of all subgroups terminate in approximately the same length in the direction of the contact direction K (cf. FIG. 1 ).

Overall, the results in FIG. 3 shown arrangement of the contact ends 11 of the contact pins in rows and columns. In this case, the contact ends 11 of the first front side subgroup 15a, the second front side subgroup 15b, the first rear side subgroup 17a and the second rear side subgroup 17b are arranged in mutually parallel rows, which are arranged spaced apart in the insertion direction S. In particular, these rows are spaced from one another in a direction perpendicular to the contact direction K.

In the insertion direction S are in FIG. 3 shown rows of contact ends 11 are not exactly aligned. Thus, the contact ends 11 of the contact pins of the front side group 15 are slightly offset from the contact pins of the rear side group 17, offset perpendicular to the contact direction K and perpendicular to the insertion direction S, namely in a (not shown offset direction). This is due to the fact that the individual contact pins of the front side group 15 are respectively plugged into the contact pins of the rear side group 17 in the first and second mating surface 6 and 7 in order to avoid contacting the L-shaped contact pins with each other. This allows a compact plug structure in which the contact pins of the front side group 15 overlap with the contact pins of the rear side group 17, for example on and / or in at least one of the plug surfaces 6, 7 and / or cross over. This crossing of the contact pins is in the in Fig. 2 Thus, the mating ends 12 of the two front side groups 15a and 15b are arranged substantially perpendicularly crossed to the contact ends 11 of the two rear side groups 17a and 17b inside the second mating surface 7. In this case, however, the individual contact pins 11 do not make contact, in particular not electrically, since they are arranged offset in the offset direction relative to one another (as in FIG Fig. 3 shown).

FIG. 5 shows a second MQS connector 2, which is largely identical to the first MQS connector 1 constructed. The differences between the two MQS plugs 1 and 2 are shown in the following figures.

FIG. 6 shows a perspective view of a section of the first MQS connector 1. In this section is as in the FIGS. 4a to 4d the first mating surface 6 not shown but omitted. In addition, some of the contact pins from each subgroup are omitted. It can be seen here in the second slot 7 formed slots 25a of the first front side subgroup 15a and bays 25b of the second front side subgroup 15b. The inserts 25a and 25b are substantially formed as holes in the solder through the second plug-in surface 7, through which the plug ends 12 of the contact pins of the respective subgroup 25a and 25b can be inserted.

Also in FIG. 6 Slots 27a of the first rear sub-group 17a and slots 27b of the second rear-side sub-group 17b are shown. These inserts 27a and 27b are formed as grooves and / or rails are inserted into the already pre-bent contact pins with their contact end 11, except for a desired position in which the mating ends 12 are all arranged parallel to each other and at a predetermined distance from each other. The contact pins 10 of the rear side group 17 can hereby be inserted from below, ie counter to the contact direction K, into the slot-shaped inserts 27a and 27b until they encounter a widening of a stop 18. The stop 18 limits the insertion movement against the contact direction K. The stop 18 prevents a deeper penetration of the contact pins 10 of the rear side group 17 in the Slots 27a and 27b. The contact pins 10 of the rear side group 17 have widened contact ends 11. By grooves in the stop 18 only the narrower plug ends 12 of these contact pins 10 can happen, but not the widened contact ends 11. In this embodiment, the contact pins of the second rear sub-group 17b are first inserted into the slots 27b, and then only the contact pins of the first rear sub-group 17a.

FIG. 7 shows a perspective view of a section of the MQS connector 2, which is essentially the in FIG. 6 shown section of the MQS connector 1 corresponds. Also in FIG. 7 the first plug-in board 6 is omitted, as well as some of the contact pins 10 of each of the front-side sub-groups and each of the rear-side sub-groups. Shown are each slots 25a 'of the first front side subgroup 15a, slots 25b' of the second front side subgroup 15b. In these slots 25a 'and 25b', the contact pins of the associated front sub-group 15a and 15b are plugged with their mating end 12. Furthermore, in Fig. 7 Slots 27a 'of the first rear sub-group 17a and slots 27b' of the second rear sub-group 17b shown. In these slots 27a 'and 27b', the contact pins of the associated rear sub-group 17a and 17b are inserted with their contact end 11. All of these inserts 27a ', 27b', 25a 'and 25b' are formed in the second slot 7 as tunnel-shaped holes.

In the in FIG. 7 In the embodiment shown, the contact pins can be inserted in a substantially straight line into the respective slots and then bent by 90 °.

In contrast, the first MQS connector 1 (see. Fig. 6 ) at least the contact pins of the rear side sub-groups 17a and 17b already pre-bent and are inserted in this pre-bent shape in the slots 27a and 27b.

The inserts 27a and 27b and 27a 'and 27b' for the contact ends 11 of the Contact pins of the rear subgroups 17a and 17b are also formed in the second slot 7. These inserts 27a and 27b and 27a 'and 27b' are formed parallel to the contact direction K and at a gap to the inserts 25a and 25b and 25a 'and 25b' for the mating ends 12 of the contact pins of the front side sub-groups 15a and 15b.

After arranging all contact pins 10, the first mating surface 6 can be arranged on the MQS plug 1 or 2. Plug-in ends 12 of the contact pins 10 of the first and second rear sub-groups 17a and 17b are plugged into corresponding slots of the first slot 6, see also Fig. 1 and Fig. 5 ,

The arrangement shown in the figures provides an efficient and easy-to-implement arrangement of contact pins, especially when the MQS connector is of a high number, such as, e.g. between 20 and 120 contact pins. The division into at least one front side group and one rear side group, in particular in a total of at least four sub-groups, provides a sufficient and good pre-sorting and ordering of the contact pins, which is very compact and leads to the most homogeneous possible heating of the circuit board during soldering of the printed circuit board with the contact pins 10 ,

As pre-bent contact pins in particular punched contacts can be used which (as in the FIGS. 4a to 4d shown) overlapping mounted. Such die-cut contacts are as in FIG. 6 shown, in particular used and installed at the contact pins of the rear side group 17 of the first MQS connector 1.

In addition, thermally cracked wires can be used as contact pins, which can be bent particularly well when it is already plugged into one end with one end (such as the male end or the contact end). Such thermally cracked wires form the contact pins of the second MQS connector 2, as they are particularly in FIG. 7 are shown.

LIST OF REFERENCE NUMBERS

1

MQS plug

2

MQS plug

5

casing

6

first mating surface

7

second mating surface

10

contact pin

11

Contact end

12

plug-in end

15

Front group

15a

first frontside subgroup

15b

second front subgroup

17

Back group

17a

first back subgroup

17b

second back subgroup

18

attack

25a

Inset of the first front side subgroup

25b

Inset of the second front subgroup

25a '

Inset of the first front side subgroup

25b '

Inset of the second front subgroup

27a

Inset of the first back subgroup

27b

Inset of the second back subgroup

27a '

Inset of the first back subgroup

27b '

Inset of the second back subgroup

K

contact direction

S

plug-in direction

Claims (11)

1. An MQS connector (1; 2) with a plurality of contact pins (10) that are designed and arranged to contact and be soldered to a printed circuit board, wherein

   - the contact pins (10) extend in a contact direction (K) from the MQS connector (1; 2), and

   - the contact pins (10) extend out of the MQS connector (1; 2) in a homogeneously organized manner such that the printed circuit board is heated substantially homogeneously when the contact pins (10) are being soldered to the printed circuit board;

   and with at least one plug-in surface (6, 7) into which a plug-in end (12) of the contact pins (10) is inserted substantially perpendicular to the at least one plug-in surface (6, 7) and parallel to a plug-in direction (S), wherein

   - the at least one plug-in surface (6, 7) is arranged in a plane parallel to the direction vector of the contact direction (K),

   - the contact pins (10) are each bent about 90° such that each contact end (11) of the contact pins (10) is arranged parallel to the contact direction (K);

   - a front side group (15) of the plurality of contact pins (10) is inserted into a front side of the at least one plug-in surface (7), and a rear side group (17) of the plurality of contact pins (10) is inserted into a rear side of the at least one plug-in surface (6),

   - the contact ends (11) of the contact pins (10) of the front side group (15) are arranged offset from the contact pins (10) of the rear side group (17) in a direction perpendicular to the contact direction (K) and perpendicular to the plug-in direction (S),

   characterized in that
   plug ends (12), that are inserted into the front side of the at least one plug-in surface (7), of the contact pins (10) of the rear side group (17) face in the direction opposite that of the plug ends (12), that are inserted into the rear side of the at least one plug-in surface (7), of the contact pins (10) of the front side group (15).
2. The MQS connector according to claim 1, wherein the contact pins (10) of the front side group (15) are divided into at least two front side subgroups (15a, 15b), and the contact pins (10) of each front side subgroup (15a; 15b) in a row are inserted into the front side of the at least one plug-in surface (7), wherein the rows of each front side subgroup (15a; 15b) are at a distance from each other on the front side of the at least one plug-in surface (7) in the contact direction (K).
3. The MQS connector according to claim 1 or 2, wherein the contact pins (10) of the rear side group (17) are divided into at least two rear side subgroups (17a, 17b), and the contact pins (10) of each rear side subgroup (17a; 17b) in a row are inserted into the rear side of the at least one plug-in surface (6), wherein the rows of each rear side subgroup (17a; 17b) are at a distance from each other on the rear side of the at least one plug-in surface (6) in the contact direction (K).
4. The MQS connector according to claim 2 or 3, wherein each front side subgroup (15a; 15b) and/or each rear side subgroup (17a; 17b) has 10 to 20 contact pins (10).
5. The MQS connector according to one of claims 2 to 4, wherein the contact ends (11) of the contact pins (10) of the front side subgroups (15a, 15b) and/or the rear side subgroups (17a, 17b) each extend out of the MQS connector (1; 2) arranged in a row, wherein the rows of the contact ends (11) of each front side subgroup (15a, 15b) and/or each rear side subgroup (17a, 17b) are at a distance from each other in the plug-in direction (S).
6. The MQS connector according to one of the preceding claims, wherein the contact pins (10) of the rear side group (17) are inserted by their contact ends (11) parallel to the contact direction into slots (27a, 27b; 27a', 27b') in at least one plug-in surface (7).
7. The MQS connector according to one the preceding claims, wherein one contact end (11) of each of the contact pins (10) extends out of the MQS connector (1; 2) in a manner that is substantially evenly distributed such that each contact end (11) has substantially the same distance perpendicular to the contact direction (K) to at least two adjacent contact ends (11); and/or
   wherein one contact end (11) of each of the contact pins (10) extends out of the MQS connector (1; 2), wherein the contact ends (11) are at least partially arranged in lines and/or columns.
8. The MQS connector according to one of the preceding claims, wherein the plurality of contact pins (10) is from 20 to 120;
   and/or
   wherein the contact pins (10) are designed as stamped contacts and or thermally torn wires.
9. A method for producing an MQS connector (1; 2) with a plurality of contact pins (10) which are designed and arranged to contact and be soldered to a printed circuit board, wherein the contact pins (10) each extend in a contact direction (K) out of the MQS connector (1; 2),

   wherein the contact pins (10) are homogeneously arranged on the MQS connector (1; 2) such that they extend out of the MQS connector (1; 2) in a homogeneously organized manner such that the printed circuit board is heated substantially homogeneously when the contact pins (10) are being soldered to the printed circuit board;

   wherein the contact pins (10) are each inserted by one plug-in end (12) into at least one plug-in surface (6, 7) of the MQS connector (1; 2) such that they are arranged with the plug-in end (12) substantially perpendicular to the at least one plug-in surface (6, 7) and parallel to a plug-in direction (S), wherein the plug-in surface (6, 7) is arranged in a plane parallel to the direction vector of the contact direction (K);

   wherein a front side group (15) of the plurality of contact pins (10) is inserted into a front side of the at least one plug-in surface (7), and the rear side group (17) of the plurality of contact pins (10) is inserted into a rear side of the at least one plug-in surface (6) such that plug ends (12), that are inserted into the front side of the at least one plug-in surface (7), of the contact pins (10) of the rear side group (17) face in the direction opposite that of the plug ends (12), that are inserted into the rear side of the at least one plug-in surface (7), of the contact pins (10) of the front side group (15); and

   wherein the contact ends (11) of the contact pins (10) of the front side group (15) are arranged offset from the contact pins (10) of the rear side group (17) offset in a direction perpendicular to the contact direction (K) and perpendicular to the plug-in direction (S).
10. The method according to claim 9, wherein at least a portion of the contact pins (10), after being inserted into the at least one plug-in surface (6, 7), is bent about 90° such that a contact end (11) of this portion of the contact pins (10) is arranged parallel to the contact direction (K).
11. The method according to claim 9 or 10, wherein at least a portion of the contact pins (10), while being inserted into the at least one plug-in surface (6, 7), is bent about 90° such that, after being inserted into the at least one plug-in surface (6, 7), a contact end (11) of this portion of the contact pins (10) is arranged parallel to the contact direction (K).

Images