CN110600941A

CN110600941A - Female contact and blind-mate connector assembly

Info

Publication number: CN110600941A
Application number: CN201911035409.6A
Authority: CN
Inventors: 丁青松
Original assignee: NINGBO CONNFLY ELECTRONIC CO Ltd
Current assignee: NINGBO CONNFLY ELECTRONIC CO Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2019-12-20

Abstract

The invention provides a female contact element, wherein a first positive part is arranged on the inner wall of the female contact element close to a plug port, the first positive part protrudes towards the plug direction of a male contact pin, the surfaces of the first positive part facing the plug port and a welding pin are both provided with guide inclined surfaces, a second positive part can be arranged on the inner wall of the female contact element close to the welding pin, and the arrangement of the positive parts can limit the plug direction of the male contact pin. The invention also provides a blind-mate connector assembly, which comprises a first connector provided with the female contact element and a second connector provided with the male contact element, wherein the two ends of the first connector are provided with third positive parts, the two ends of the second connector are provided with fourth positive parts, and the third positive parts and the fourth positive parts are matched with each other to limit and guide the connectors to be correctly plugged, so that the blind-mate function is realized.

Description

Female contact and blind-mate connector assembly

Technical Field

The present invention relates to the field of electrical contacts and electrical connectors, and more particularly to a female contact and a blind mate connector assembly.

Background

Because the plug-pull force, the manufacturing process, the adaptation of various male contact pins and other factors are considered, the inner diameter of the jack of the female contact element is larger than that of the male contact pin, so that the situation that the male contact pin is inserted askew in the process of inserting the female contact element is existed, and the insertion with the angle can cause the male contact pin to interfere with the internal structure of the female contact element to cause structural damage.

Particularly, under the condition that the male contact and the female contact are small in size, on one hand, the contact deforms due to overlarge interference force in the plugging and unplugging process because the material is thin and the structural strength is small; on the other hand, the small size of the connector brings difficulty to the installation of the male and female connectors because the plugging angle is difficult to adjust by observation in the installation process.

Disclosure of Invention

In order to overcome the technical problem, the invention provides a female contact element which can limit a matched male contact element in a plugging process so that the male contact element can be plugged according to a correct plugging direction.

The technical scheme adopted by the female contact element is as follows:

the utility model provides a female first contact, includes main part, interface, welding foot, the main part is the cavity body, the interface with the welding foot is established respectively the main part both ends be close to on the inner wall of main part the interface department sets up first positive position portion, first positive position portion is protruding towards the grafting direction of public first contact pin, first positive position portion all sets up to guide inclined plane towards the face of interface and towards the face of welding foot.

Furthermore, first positive position portion contains along the arc rectangular that the grafting direction set up, the rectangular one end of arc is close to the interface.

Furthermore, a contact elastic sheet is arranged on the inner wall of the main body part and is arranged close to the insertion interface; one end of the contact elastic sheet is connected with the inner wall of the main body part, and the other free end of the contact elastic sheet extends towards the welding foot direction and approaches to the radial center of the inserting direction.

Furthermore, the projection positions of the contact elastic sheet and the first positive position part in the plugging direction are not overlapped.

Furthermore, the female contact element comprises two contact spring pieces, the first positive part protrudes from two different directions toward the plugging direction, and projection positions of the contact spring pieces and the first positive part in the plugging direction are respectively located on four positive positions of a radial plane of the pin inserting direction.

Furthermore, the contact elastic sheet, the first positive part and the contact part of the male contact pin are all located on the same radial plane of the plugging direction.

In any of the above-described female contact pieces, it may be further optimized that a second positioning portion is provided on an inner wall of the main body portion near the welding leg, the second protrusion protrudes in a radial direction of the plugging direction, and a surface of the second positioning portion facing the plugging port is provided as a guide inclined surface.

Further, the projection positions of the first positive position part and the second positive position part in the plugging direction do not coincide.

Furthermore, the first positive position portion and the second positive position portion are both protruded from two different directions toward the plugging direction, and projection positions of the first positive position portion and the second positive position portion in the plugging direction are respectively located on four directions of a radial plane of the pin inserting direction.

According to the female contact element, the first positive part is additionally arranged at the inserting port, so that the inserting direction of the adaptive male contact pin can be limited and guided, the second positive part can be additionally arranged at the welding pin, the needle head of the adaptive male contact pin is further limited, the head end and the tail end of the inserting section of the adaptive male contact pin are limited, and therefore the adaptive male contact pin can be inserted and pulled in the correct inserting direction.

The invention also provides a blind-mate connector assembly, which can realize blind mating between two connectors, and the technical scheme of the blind-mate connector assembly is as follows: a blind mate connector assembly comprising a first connector comprising a first insulator and a female contact mounted within the first insulator; the connector comprises a first insulating part and a second insulating part, wherein the first insulating part is arranged in the socket, the second insulating part is arranged in the socket, and the first insulating part is arranged in the socket; the insulation walls at two ends of the first insulation part form a third positive part, the second insulation part is a mounting groove with an opening on one side, the insertion end of the male contact element faces the opening surface of the mounting groove, the two ends of the mounting groove are provided with fourth positive parts, the fourth positive parts are surrounded by the groove walls at two ends of the mounting groove, and the fourth positive parts are higher than the insertion end of the male contact element; the third positive portion and the fourth positive portion are matched with each other to guide the male contact element and the female contact element to be inserted, and the first insulating piece can be inserted into the mounting groove.

Furthermore, the first insulating part and the second insulating part are cuboids, and the fourth positioning part is formed by extending three groove walls at two ends of the mounting groove.

Further, first insulating part with the second insulating part is the cuboid, the extension of the adjacent two sides cell wall of mounting groove one end forms first guide way, the extension of the adjacent two sides cell wall of the mounting groove other end forms the second guide way, first guide way with the second guide way sets up respectively the diagonal angle of mounting groove, first guide way with the second guide way constitutes fourth positive position portion.

Furthermore, the outer side walls of the two ends of the first insulating part are respectively connected with a transverse rod part, the transverse rod parts are vertically arranged relative to the corresponding outer side walls, a fixed notch is arranged on the groove wall of the fourth normal position part, and the fixed notch and the transverse rod parts are mutually matched and plugged.

Further, the cross bar portion is disposed asymmetrically with respect to the first insulator vertical axis.

Furthermore, another free end of the cross rod part is connected with a blocking surface, the blocking surface is parallel to the outer side wall of the first insulating part of the cross rod part, the blocking surface, the outer side wall and the cross rod part jointly enclose one or two U-shaped clamping grooves, and the U-shaped clamping grooves are mutually clamped with the notch groove walls forming the fixed notches.

Further, the other free end of the cross rod part is connected with a thread groove, and an internal thread is arranged in the thread groove and is in threaded connection with a fastener with an external thread.

Furthermore, the groove wall of the thread groove close to the two ends of the first insulating part is parallel to the outer side wall of the first insulating part corresponding to the thread groove, and the groove wall, the outer side wall and the cross rod part form a U-shaped clamping groove.

According to the blind plug connector assembly, the third positioning part and the fourth positioning part are additionally arranged at the two ends of the insulating part, and through the mutual matching of the third positioning part and the fourth positioning part, the plugging direction between the contact elements installed in the insulating part is corrected to enable the contact elements to be plugged correctly, so that the blind plug connector assembly can be plugged and installed under the conditions that the plugging positions of the contact elements are not observed, and the like.

Drawings

FIG. 1 is a schematic perspective view of one embodiment of a female contact;

FIG. 2 is a schematic front view of one embodiment of a female contact;

FIG. 3 is a side schematic view of one embodiment of a female contact;

FIG. 4 is a schematic cross-sectional view of one embodiment of a blind mate connector assembly after mating;

FIG. 5 is an exploded view of one embodiment of a blind mate connector assembly;

FIG. 6 is an exploded view of another embodiment of a first blind mate connector assembly;

FIG. 7 is a schematic view of one embodiment of a second connector in the blind mate connector assembly;

fig. 8 is an exploded view of another embodiment of a blind mate connector assembly.

Description of reference numerals: 1-female contact piece, 2-main body part, 3-socket, 4-welding foot, 5-first positive part, 6-sealing baffle, 7-contact spring piece, 8-second positive part, 9-barb, 10-anti-back spring piece, 11-male pin, 12-first connector, 13-first insulator, 14-second connector, 15-second insulator, 16-male contact piece, 17-third positive part, 18-fourth positive part, 19-crossbar part, 20-fixing notch, 21-blocking surface, 22-U-shaped clamping groove, 23-notch groove wall, 24-thread groove, 25-female buckle groove and 26-male buckle convex part.

Detailed Description

Technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing objects having the same function or objects having a relationship with each other, and are not necessarily used for describing a particular order or sequence. The term "mating direction" refers to a direction in which the corresponding male pin is inserted and removed vertically with respect to the mating interface of the female contact.

Embodiment of a female contact 1

As shown in fig. 1, the female contact 1 includes a main body 2 that is a hollow cavity for accommodating the male pin, and the main body 2 may be a rectangular parallelepiped or a cylinder as a whole. An opening at one end of the main body part 2 forms a socket 3 for a male contact pin to be inserted; the inner side of the port of the plug interface 3 can be provided with a chamfer angle for convenient plug-in connection, and the outer side of the port is provided with a chamfer angle for convenient installation of an insulating part. Combine fig. 3 to show, the other end and the welding foot 4 of main part 2 are connected, and the preferred setting in 4 middle sections of welding foot is the wave, can increase the cardboard power between welding foot 4 and the circuit board to can prevent that the tin cream from entering into in the 2 cavity of main part in welding process, can also set up at this end of main part 2 and seal baffle 6 and equally can play the effect that blocks the tin cream, can also play the limiting displacement of keeping out to public first contact pin simultaneously.

Set up first positive position portion 5 on female first contact main part 2's the inner wall and protruding towards public first contact pin grafting direction, establish first positive position portion 5 near interface 3 department for rectify the public first contact pin that takes the angle to get into interface 3, it is internal that messenger's public first contact pin is in the cavity that exact position and direction continue to enter into main part 2, thereby it hinders its continuation to insert to avoid public first contact pin to insert askewly and produce with main part 2 inner wall and support and hinder it to continue to insert, cause the destruction of structure even. Preferably, the first positioning portion 5 includes at least two first protruding portions disposed opposite to each other, and the first protruding portions protrude in the radial direction of the plugging direction, so that the male pin is radially limited by the multiple plugging directions, and thus the male pin is in the correct plugging direction, and meanwhile, the first positioning portion 5 also has a certain electrical connection function. Obviously, the first positioning portion 5 may be a pair of first protrusions arranged oppositely, and one first protrusion or two first protrusions arranged oppositely may be added in different directions.

The first convex part is arranged into a guiding inclined surface on the surface facing the socket 3, and can be guided to be inserted continuously according to the correct plugging direction as soon as the male contact pin enters the main body part 2; likewise, the surface of the first convex part facing the welding foot 4 is also provided with a guiding inclined surface to facilitate the extraction of the male contact pin. The first convex part can be a semi-cylinder, the curved surface of the semi-cylinder is convex towards the inserting direction, the opposite plane of the curved surface is connected with the inner wall of the main body part 2, and the structure has higher relative strength; the first convex part can also be arranged into an arc surface which is convex towards the plugging direction, two ends of the arc surface are connected to the inner wall of the main body part 2, one end of the arc surface is close to the plugging port 3, and the structure has certain elasticity; first convex part can also set up to the convex arc rectangular of orientation of pegging graft, and arc rectangular sets up and convex rectangular both ends all connect on 2 inner walls of main part along the direction of pegging graft, and wherein one end is close to interface 3, and this kind of structure had both had certain elasticity, and is better to the bigger spacing effect of spacing area of public first contact pin. The first positioning portion 5 may be formed by matching the first protrusions with different structures, or may be formed by one of the structures; the contact portions of the first convex portions and the male pin can be arranged on the same radial plane in the radial direction of the plugging direction or can be arranged in a staggered mode in the plugging direction.

As shown in fig. 2, in addition to the female contact 1, a contact spring 7 may be additionally provided on the inner wall of the main body 2 near the socket 3, and a plurality of contact springs 7 may be provided. One end of the contact elastic sheet 7 is connected to the inner wall of the main body part 2, the other end extends towards the direction of the welding foot 4, the other end is set as a free end and is also a contact end of the contact elastic sheet 7, and the structure of the contact elastic sheet 7 has more freedom degrees and cannot be abutted against a male contact pin. The contact end of the contact spring plate 7 extends towards the direction of the super-welding pin 4 and is close to the radial center of the plugging direction of the male contact pin, and the contact spring plate 7 has certain degree of freedom in the radial direction, so that the contact spring plate can be adapted to more male contact pins with different diameters. The contact end of the contact spring plate 7 may be on the same radial plane as the first positioning portion 5 in the radial direction of the plugging direction, or may be disposed below the first positioning portion 5, where the contact end and the first positioning portion 5 are on different radial planes in the plugging direction. The contact elastic sheet 7 mainly plays a role in electric connection with the male contact pin and also has a certain limiting effect, and the contact elastic sheet and the first positive part 5 limit the male contact pin together.

Preferably, the projections of the contact spring piece 7 and the first positive position portion 5 in the plugging direction do not overlap. In one embodiment, the female contact element 1 is provided with two opposing contact spring pieces 7, the first positive portion 5 is formed by two opposing first convex portions, and projections of the two contact spring pieces 7 and the two first convex portions in the plugging direction are located on four positive positions of the radial plane of the plugging direction, which are up, down, left and right. In the above arrangement, the free end of the contact spring 7, i.e. the contact end and the contact portion between the two first protrusions and the male pin, may be substantially arranged on the same radial plane in the plugging direction, or may be arranged in a staggered manner in the plugging direction, so that the male pin may be restricted in different directions during the insertion process. Furthermore, the free ends and the two first convex parts of the two contact spring pieces 7 and the contact parts of the male pin are on the same radial plane of the plugging direction and are respectively distributed on four positive positions of the radial plane, and the arrangement enables the first positive position part 5 and the contact spring pieces 7 to simultaneously limit the pin plugging direction from different directions at the first time when the pin is plugged into the main body part 2.

In order to achieve a better righting effect, a second righting portion 8 can be additionally arranged on the inner wall of the female contact element main body portion 2 at a position close to the welding pin 4, and the second righting portion 8 protrudes towards the inserting direction of the male contact pin. Preferably, the second positioning portion 8 at least includes two opposite second protrusions, and the second protrusions protrude in the radial direction of the inserting direction to limit the needle portion of the male plug needle. The second positioning portion 8 may be a pair of second protrusions provided opposite to each other, or one second protrusion or two second protrusions provided opposite to each other may be added in different directions. Especially, when the male contact pin is long, the second positive part 8 can further limit the contact pin part, reduce the interference between the contact pin and the female contact element 1 and prevent the deformation of the contact pin.

Obviously, since the second positive portion 8 mainly serves as a limit for the pin head portion of the male pin, the second convex portion only needs to set the surface facing the socket 3 as a guide inclined surface, and thus the second convex portion can be set as a spring sheet, one end of the spring sheet is connected to the accessory at the welding pin 4 inside the main body portion, and the other end of the spring sheet is a free end, extends towards the welding pin 4 and approaches the radial center of the plugging direction of the male pin; the second convex part can also be arranged into another elastic sheet, the elastic sheet is approximately U-shaped, and the elastic sheet is not easy to overlong and needs to have certain rigidity.

The second convex portion may have the same specific structure as the first convex portion. Specifically, the second convex portion may be a semi-cylinder protruding in the plugging direction, or the cylinder may be thinned into an arc surface protruding in the plugging direction; the second convex part can also be arranged into a circular arc strip which is convex towards the plugging direction, two ends of the circular arc strip are connected to the inner wall of the main body part 2, and one end of the circular arc strip is close to the plugging port 3.

Since the second positioning portion 8 may be composed of more than one second protrusion, it can be seen that the second positioning portion 8 may be composed of the second protrusions with different structures, or may be composed of one of the structures; the contact parts of the second convex parts and the male contact pin can be arranged on the same radial plane in the plugging direction, and can also be arranged in a staggered manner in the plugging direction.

Under the combined action of the second positive part 8 and the first positive part 5, the male pin can be inserted and pulled more smoothly in the process of plugging and unplugging.

In one preferred embodiment, the projection positions of the first positioning portion 5 and the second positioning portion 8 in the inserting direction do not coincide. Further, the first positioning portion 5 is formed as two first convex portions facing each other, the second positioning portion 8 is formed as two second convex portions facing each other, and the projection positions of the first convex portions and the second convex portions in the inserting direction are located in four directions, respectively. With the above arrangement, the first positive portion 5 and the second positive portion 8 limit the male pin from four different directions of the pin, respectively, and limit the head end and the tail end of the male pin insertion section, respectively. Further, the projections of the first and second positive positioning portions 5 and 8 in the plugging direction are located on four positive positions, which are up, down, left, and right, of the radial plane of the plugging direction. The female contact element 1 of the scheme has a relatively simple structure, achieves a good effect, and has certain advantages in terms of requirements on manufacturing processes and cost.

Specifically, when the male pin is a square pin, the first positive portion 5 and the second positive portion 8 may limit the square pin from four sides thereof, and limit the pin portion of the male pin insertion section and the pin tail end at the socket 3; when the male contact pin is a round pin, the male contact pin is obviously limited from different angles, and a better righting effect is achieved.

As shown in fig. 3, an barb 9 and a withdrawal-preventing spring piece 10 may be added to the lower surface of the body 2 for each of the female contacts 1 described above. The barb 9 and the anti-return elastic sheet 10 can be respectively arranged on two opposite surfaces of the main body part 2, so that a better positioning effect is achieved. After the female contact element 1 is installed in the corresponding insulating part, the barb 9 can pierce into the insulating part, and the tail end of the anti-withdrawal spring piece 10 abuts against the insulating part, so that the female contact element 1 can be effectively prevented from withdrawing from the insulating part.

In the embodiment of the female contact 1 shown in fig. 4, after the male pin 11 is inserted into the main body 2 under the guiding of the inner side of the socket 3 by chamfering, the first positioning portion 5 limits the continuous insertion direction of the male pin, and meanwhile, the male pin 11 is contacted with the contact spring 7 to play a certain limiting role; when the male pin 11 is inserted further downward, the second positive portion 8 restricts the male pin, so that the male pin 11 is inserted into the female contact 1 as vertically as possible. Likewise, when the male pin is extracted, it is also restrained by the above-mentioned components to be extracted in the correct direction from the female contact 1. Therefore, the arrangement of the righting part can limit the plugging direction of the male pin so that the male pin is positioned in the correct plugging direction, and unnecessary interference between the contact pieces is reduced.

Embodiments of a blind mate connector assembly

As shown in fig. 5, the blind mate connector assembly includes a first connector 12 and a second connector 14.

The first connector 12 includes a first insulating member 13 and the female contact 1 mounted in the first insulating member 13, the female contact 1 may adopt any one of the above-mentioned structures of the female contact 1, and the insulating walls at both ends of the first insulating member 13 form the third positioning portion 17.

Wherein, second connector 14 includes second insulating part 15 and installs public first contact 16 in second insulating part 15, and public first contact 16 can be public first contact pin, and the contact pin can be the type commonly used such as tetragonal needle, round needle, and public first contact 16 and female first contact 1 set up for the cooperation, and both can realize the grafting cooperation at reasonable plug power within range. The second insulating member 15 is a mounting groove with an opening on one side, the insertion end of the male contact member 16 faces the opening of the mounting groove, the groove walls at the two ends of the mounting groove extend higher than the insertion end of the male contact member 16, and the groove walls enclose a fourth positive portion 18.

The third positioning portion 17 and the fourth positioning portion 18 are matched with each other, and the lower end of the fourth positioning portion 18 will contact the first connector 12 before the plugging end of the male contact 16; on one hand, the fourth positioning portion 18 is matched with the third positioning portion 17 before the male contact 16, so that the plugging direction can be corrected to avoid inserting with an angle, and on the other hand, the size of the insulating part is larger than that of the contact, and the installation process only needs to correctly install two ends of the connector without paying attention to the plugging condition between the contacts, so that blind plugging between the first connector 12 and the second connector 14 is realized.

Obviously, when the first insulating member 13 and the second insulating member 15 are correctly fitted, the female contact 1 and the male contact 16 are naturally inserted in the correct direction, and the first insulating member 13 is inserted into the mounting groove of the second insulating member 15. In one embodiment, during the blind mating process, the first positive portion 5 in the female contact 1 cooperates with the third and fourth positive portions 18 to assist in the blind mating between the female contact 1 and the male contact 16. In another embodiment, when the male contact 16 is longer, the first and second positive portions 8 in the female contact 1 further provided with the second positive portion 8 cooperate with the third and fourth positive portions 18 to assist in completing the blind insertion between the female contact 1 and the male contact 16.

The cell walls at the two ends of the mounting groove are extended to form guide grooves, the guide grooves at the two ends jointly form a fourth positive part 18, the guide positive function of the fourth positive part 18 is jointly realized, and the cell walls at the two sides of the mounting groove are not extended, so that the matching condition between the male contact element 16 and the female contact element 1 can be conveniently checked in the mounting process. The guide groove may be communicated with the mounting groove, the male contact 16 may be mounted in the guide groove, and the third positioning portion 17 may be configured to be engaged with the fourth positioning portion 18.

As shown in fig. 6, in one embodiment, the first insulating member 13 and the second insulating member 15 are rectangular solids, and the third positioning portion 17 and the fourth positioning portion 18 are also rectangular solids, and the fourth positioning portion 18 can be formed by extending respective three walls of the mounting groove, and the third positioning portion 17 is a three-sided insulating wall at two ends of the first insulating member 13, and after the blind-mate connector assembly is mounted, the structure provides a certain holding force between the two connectors. Obviously, when the cuboid is a round-corner cuboid, the respective three-surface groove walls at the two ends of the installation groove and the two cylindrical surfaces extend to enclose the fourth positioning portion 18, and of course, the two cylindrical surfaces can also form the fourth positioning portion 18 capable of achieving the target function without extending, and these two embodiments are not shown in the drawings.

As shown in fig. 7, as a modification of the above embodiment, the adjacent two side walls of one end of the mounting groove extend to form a first guide groove, the adjacent two side walls of the other end of the mounting groove extend to form a second guide groove, the first guide groove and the second guide groove are respectively provided at diagonal corners of the mounting groove, and the first guide groove and the second guide groove together form the fourth positive portion 18. The structure has certain holding force after the blind plug connector assembly is installed, and because one groove wall at two ends of the installation groove is not extended to form a notch, the matching condition between the contact pieces can be observed through the notch in the installation process of the first connector and the second connector so as to find problems in time, particularly when the male contact piece 16 is also arranged in the fourth positioning part 18.

It is to be understood that the structure of the third and fourth positioning portions 18 and the cooperation between them when the first insulating member 13 and the second insulating member 15 are rectangular solids are also applicable to the case when the two ends of the first insulating member 13 and the second insulating member 15 are cylindrical, and the obtained effect is basically the same.

As shown in fig. 8, in order to improve the holding force between the blind-mate connector assemblies, the outer side walls of the two ends of the first insulating member 13 may be connected with a cross rod 19, the cross rod 19 is vertically arranged relative to the corresponding outer side wall, and a fixing gap 20 is formed on the groove wall of the corresponding fourth positioning portion 18; fixed breach 20 and horizontal pole portion 19 are mutually supported the plug, make horizontal pole portion 19 neither can hinder the installation, can also further correct the grafting direction at third, fourth positive position portion 18 cooperation in-process and avoid public first contact 16 to take the angle to insert, set up to interference fit between fixed breach 20 and the horizontal pole portion 19 and make the installation accomplish the back increase the holding power between the connector.

The positions of the beam portions 19 at both ends on the outer side walls at both ends of the first insulator 13 may be arranged symmetrically with respect to the lateral axis in the direction of the first insulator 13 as shown in fig. 8, or may be arranged offset from each other, that is, the two beam portions 19 are not symmetrical with respect to the lateral axis in the direction of the first insulator 13 as shown in fig. 8. In the above case, when the cross bar portions 19 at both ends are not disposed to be symmetrical with respect to the vertical axis of the first insulating member 13 as shown in fig. 8, since the fixing notches 20 are disposed to correspond to the cross bar portions 19, the fixing notches 20 are also disposed to be asymmetrical with respect to the vertical axis of the second insulating member 15 as shown in fig. 8, so that the blind mate connector assembly has a fool-proofing effect.

As a further improvement, the other free end of the cross rod 19 may be connected with a blocking surface 21, the blocking surface 21 is parallel to the outer side wall of the first insulating member 13 connected to the cross rod 19, and simultaneously, the blocking surface and the outer side wall jointly enclose one or two U-shaped slots 22, the U-shaped slots 22 are used to clamp the notch slot wall 23 forming the fixed notch 20, the plugging direction is further limited in the plugging process, the first and second connectors 14 are connected more firmly after the plugging is completed, and the electrical connection stability is improved.

In another improvement, as shown in fig. 5, a threaded groove 24 is connected to the other free end of the cross bar portion 19, an internal thread is provided in the threaded groove 24 for matching with a fastener such as a screw or a bolt with an external thread, and the fastener is screwed into the threaded groove 24 and then is in threaded connection with a corresponding circuit board, so that the first connector 12 is firmly fixed on the circuit board; for the blind-mate connector assembly with multiple rows of multiple contacts, even when the contacts are small in size and low in strength, the improvement can improve the plugging safety and avoid the damage of the contacts.

As shown in fig. 5, with any of the above-described blind mate connector assemblies, female latching grooves 25 may be further provided on both side walls of the second insulating member 15, while male latching protrusions 26 are provided on both side walls of the first insulating member 13, and the female latching grooves 25 and the male latching protrusions 26 are snap-fitted to each other, further improving the holding force between the blind mate connector assemblies. Further, the female snap groove 25 may be a hollow rectangular groove, and the male snap protrusion 26 may be a semi-cylindrical protrusion. In another modification, the number of the female snap grooves 25 on the two side walls of the second insulating member 15 is different, and the number of the corresponding male snap protrusions 26 is correspondingly set, so that the structure has a fool-proof function and prevents misplugging.

For any of the above blind-mate connector assemblies, chamfers may be added to the lower end of the fourth positioning portion 18 and the upper end of the third positioning portion 17 to further facilitate the mating of the first connector 12 and the second connector 14.

The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes will occur to those skilled in the art, for example, the groove wall of the screw groove 24 near the outer side walls of both ends of the first insulating member 13 may be provided with the above-mentioned abutment surfaces 21. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. The utility model provides a female first contact, includes main part, interface, welding foot, the main part is the cavity body, the interface with the welding foot is established respectively the main part both ends, its characterized in that be close to on the inner wall of main part the interface department sets up first positive position portion, first positive position portion is protruding towards the grafting direction of public first contact pin, first positive position portion all sets up to guide inclined plane towards the face of interface and the face towards welding foot.

2. The female contact of claim 1, wherein said first positive location comprises an arcuate strip disposed along said mating direction, one end of said arcuate strip being proximate said mating opening.

3. The female contact element according to claim 2, wherein a contact spring is further disposed on an inner wall of the main body portion, and the contact spring is disposed near the insertion interface; one end of the contact elastic sheet is connected with the inner wall of the main body part, and the other free end of the contact elastic sheet extends towards the welding foot direction and approaches to the radial center of the inserting direction.

4. The female contact according to claim 3, wherein the projection positions of the contact spring and the first positive portion in the mating direction are not coincident.

5. The female contact element according to claim 4, wherein the female contact element comprises two contact spring pieces, the first positioning portion protrudes from two different directions toward the plugging direction, and projection positions of the contact spring pieces and the first positioning portion in the plugging direction are located on four directions of a radial plane of the pin direction, respectively.

6. The female contact according to claim 5, wherein the contact spring, the first positive portion and the contact portion of the male pin are all located on the same radial plane of the mating direction.

7. The female contact according to any one of claims 1 to 6, wherein the inner wall of the body portion is provided with a second positioning portion near the soldering leg, the second protrusion protrudes in the radial direction of the plugging direction, and a surface of the second positioning portion facing the plugging port is provided with a guide slope.

8. The female contact according to claim 7, wherein the projection positions of the first and second positive portions in the mating direction do not coincide.

9. The female contact according to claim 8, wherein the first and second positive portions each protrude from two different orientations toward the plugging direction, and projection positions of the first and second positive portions in the plugging direction are located on four orientations of a radial plane of the pin direction, respectively.

10. A blind mate connector assembly comprising a first connector comprising a first insulator and a female contact mounted within the first insulator; further comprising a second connector comprising a second insulator and a male contact mounted within the second insulator,

the female contact piece is characterized in that the female contact piece is as claimed in any one of claims 1 to 9, and the plug port and the male contact piece are arranged in a matched manner; the insulation walls at two ends of the first insulation part form a third positive part, the second insulation part is a mounting groove with an opening on one side, the insertion end of the male contact element faces the opening surface of the mounting groove, the two ends of the mounting groove are provided with fourth positive parts, the fourth positive parts are surrounded by the groove walls at two ends of the mounting groove, and the fourth positive parts are higher than the insertion end of the male contact element; the third positive portion and the fourth positive portion are matched with each other to guide the male contact element and the female contact element to be inserted, and the first insulating piece can be inserted into the mounting groove.

11. The blind mate connector assembly of claim 10 wherein the first and second insulators are rectangular cuboids and the fourth positive portion is defined by extensions of three groove walls at both ends of the mounting groove.

12. The blind mating connector assembly as claimed in claim 10, wherein the first and second insulating members are rectangular parallelepiped, and the adjacent two wall surfaces of one end of the mounting groove are extended to form a first guide groove, and the adjacent two wall surfaces of the other end of the mounting groove are extended to form a second guide groove, the first and second guide grooves being respectively provided at diagonally opposite corners of the mounting groove, the first and second guide grooves constituting the fourth positive portion.

13. The blind mating connector assembly of claim 10, wherein the first insulating member has a cross bar portion connected to the outer side walls of the two ends, the cross bar portion is perpendicular to the corresponding outer side wall, the fourth alignment portion has a fixing notch on the groove wall, and the fixing notch and the cross bar portion are matched with each other for plugging.

14. The blind mate connector assembly of claim 13 wherein the cross bar portion is asymmetrically disposed relative to the first insulator vertical axis.

15. The blind mating connector assembly of claim 13 or 14, wherein the other free end of the crossbar is connected to a stop surface parallel to the outer sidewall of the first insulator connected to the crossbar, the stop surface, the outer sidewall and the crossbar together define one or two U-shaped slots, and the U-shaped slots and the slot wall of the notch forming the fixing notch are engaged with each other.

16. The blind mate connector assembly of claim 13 or 14 wherein a threaded channel is connected to the other free end of the crossbar portion, the threaded channel having internal threads disposed therein for threaded connection with an externally threaded fastener.

17. The blind mate connector assembly of claim 16 wherein the groove wall of the threaded groove proximate the ends of the first insulator member is parallel to the outer side wall of the corresponding first insulator member, the groove wall, the outer side wall and the cross bar portion defining a U-shaped slot.