CN215418656U

CN215418656U - A plug-in MXM connector

Info

Publication number: CN215418656U
Application number: CN202120589380.2U
Authority: CN
Inventors: 王煌文
Original assignee: Dunpu Electronics Co ltd
Current assignee: Dunpu Electronics Co ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2022-01-04
Anticipated expiration: 2031-03-23

Abstract

The utility model discloses a plug-in type MXM connector, which comprises a plastic main body, a first terminal group and a second terminal group, wherein the first terminal group and the second terminal group are oppositely arranged in the plastic main body, a transversely penetrating slot is arranged on the plastic main body, a plurality of upper clamping grooves are formed in the upper end surface of the slot at intervals, a plurality of lower clamping grooves are formed in the lower end surface of the slot at intervals, the first terminal group comprises a plurality of first elastic terminals which are inserted in the upper clamping grooves, the second terminal group comprises a plurality of second elastic terminals which are inserted in the lower clamping grooves, the first elastic terminals and the second elastic terminals are oppositely arranged one by one to form clamping gaps, a main board is inserted between the first elastic terminals and the second elastic terminals from one side, and an MXM board is inserted between the first elastic terminals and the second elastic terminals from the other side. According to the utility model, the mainboard and the MXM are in an insertion connection mode, and the mainboard and the connector are fixedly assembled by matching with the fastener, so that the convenience of assembly and the flexibility of later-stage replacement are improved.

Description

Plug-in type MXM connector

The technical field is as follows:

the utility model relates to the field of electric connectors, in particular to a plug-in type MXM connector.

Background art:

a mobile PCI-E module interface (hereinafter referred to as an MXM interface) is a common interface for connecting devices such as a graphics processor and a video card based on a PCI-Express interface.

Adopt welded form to fix between current MXM connector and the mainboard, and adopt the grafting form between the MXM board, this kind of assembly form not only work load is big, and is higher to the welding requirement moreover, can not have the condition such as rosin joint, otherwise will cause the unstable condition of connection, and this kind of welded form makes connector and mainboard form an organic whole moreover, and is more loaded down with trivial details or only can wholly change when later stage maintenance is changed, has increased user's cost.

The utility model has the following contents:

aiming at the defects and shortcomings of the prior art, the utility model provides the plug-in type MXM connector, so that the mainboard and the MXM are in a plug-in form, and the mainboard and the connector are fixedly assembled by matching with a fastener, so that the convenience of assembly and the flexibility of later replacement are improved.

The present invention achieves the above technical objects by the following technical means.

The utility model provides a plug-in type MXM connector, includes the plastic main part, sets up first terminal group and second terminal group in the plastic main part relatively, be equipped with the slot that transversely runs through in the plastic main part, the up end interval of slot is equipped with a plurality of draw-in grooves of going up, and the lower terminal interval is equipped with a plurality of draw-in grooves down, first terminal group includes a plurality of first elastic terminal cartridge in last draw-in groove, second terminal group includes a plurality of second elastic terminal cartridge under in the draw-in groove, and first elastic terminal and second elastic terminal one-to-one set up, form the centre gripping space each other, and the mainboard inserts between first elastic terminal and the second elastic terminal from one side, and the MXM board inserts between first elastic terminal and the second elastic terminal from the opposite side.

Preferably, the plastic main part both sides extend there is the fixed part, and the fixed part corresponds the mainboard and inserts the side and be equipped with the installation slot, has vertical threaded mounting hole that runs through on the fixed part simultaneously, and the mainboard inserts in the installation slot, and the fixed mounting of mainboard and connector can be realized to the riveting hole that the cooperation fastener was twisted on threaded mounting hole and mainboard.

Preferably, the first elastic terminal and the second elastic terminal are integrally of a sheet type structure and provided with a transverse base, a first elastic arm and a second elastic arm are symmetrically arranged below the transverse base in a left-right mode, and free ends of the first elastic arm and the second elastic arm are both V-shaped contacts.

Preferably, two side surfaces of one end of the transverse base are provided with convex clamping portions, and the lower section of the other end of the transverse base is provided with an oblique triangular clamping point.

Preferably, the plastic main body is provided with a positioning PCB corresponding to the insertion side of the main board, the surface of the positioning PCB is provided with a PCB conductive contact piece corresponding to the transverse base positions of the first elastic terminal and the second elastic terminal, and the center of the positioning PCB is provided with a socket for inserting the main board, and the PCB conductive contact piece is communicated with an electromagnetic interference protection circuit on the positioning PCB.

Preferably, the outside cladding of plastic main part has the iron-clad, and this iron-clad includes the last casing and the lower casing of mutual butt joint, the edge that goes up the casing and correspond the mainboard and insert the side extends and has the connection piece of buckling, and this connection piece tip pastes the conducting strip on the tight location PCB board, conducting strip and one or more PCB conductive contact intercommunication.

Has the advantages that: the plug-in type MXM connector disclosed by the utility model has the following beneficial effects:

the plug-in assembly of the mainboard and the MXM board is realized by adopting the elastic terminal with a special structure, the assembly simplicity is improved, and the connection problem caused by welding defects is avoided;

the fixing parts arranged on the two sides of the plastic main body are matched with the fasteners to realize fixed assembly with the mainboard, so that the connector is prevented from being separated from the mainboard;

the iron shell arranged outside the plastic main body can play a role in resisting electronic interference, and the iron shell is connected with the protection circuit on the positioning PCB board, so that the electromagnetic interference resistance function of the CPU on the mainboard can be enhanced.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is an exploded view of the first embodiment of the present invention;

fig. 4 is a structural view of a first elastic terminal and a second elastic terminal in the first embodiment of the present invention;

fig. 5 is a state diagram of the MXM board of the first embodiment of the present invention when inserted;

FIG. 6 is a state diagram illustrating the use of the first embodiment of the present invention;

FIG. 7 is a side cross-sectional view of the first embodiment of the present invention in use;

FIG. 8 is a block diagram of a second embodiment of the present invention;

FIG. 9 is a partial cross-sectional view of FIG. 8;

FIG. 10 is a block diagram of positioning a PCB board;

FIG. 11 is an exploded view of a second embodiment of the present invention;

FIG. 12 is a side cross-sectional view of the second embodiment of the present invention in use.

In the figure: 1-plastic body, 2-first terminal group, 3-second terminal group, 4-slot, 5-upper slot, 6-lower slot, 7-first elastic terminal, 8-second elastic terminal, 9-fixing part, 10-mounting slot, 11-fastener, 12-transverse base, 13-first elastic arm, 14-second elastic arm, 15-V contact, 16-conduction part, 17-clamping part, 18-clamping point, 19-main board, 20-MXM board, 21-positioning PCB board, 22-positioning column, 23-positioning hole, 24-socket, 25-PCB conductive contact piece, 26-upper shell, 27-lower shell, 28-connecting piece and 29-conductive piece.

Detailed Description

For a further understanding of the utility model, reference is made to the following description of the preferred embodiments of the utility model taken in conjunction with the accompanying drawings and examples, but it is understood that the description is intended to illustrate the features and advantages of the utility model, rather than to limit the scope of the appended claims.

The utility model relates to a plug-in type MXM connector for realizing connection of a mainboard and an MXM board, one side of the plug-in type MXM connector is fixed on the mainboard, the other side of the plug-in type MXM connector is inserted with the MXM board, the concrete structure is shown in figures 1-3, the plug-in type MXM connector comprises a plastic main body 1, a first terminal set 2 and a second terminal set 3 which are oppositely arranged in the plastic main body 1, a slot 4 which transversely penetrates through the plastic main body is arranged for the mainboard and the MXM board to insert in, a plurality of upper clamping grooves 5 are arranged on the upper end surface of the slot at intervals, a plurality of lower clamping grooves 6 are arranged on the lower end surface of the slot at intervals, the first terminal set comprises a plurality of first elastic terminals 7 which are inserted in the upper clamping grooves, the second terminal set comprises a plurality of second elastic terminals 8 which are inserted in the lower clamping grooves, the first elastic terminals and the second elastic terminals are oppositely arranged one by one to one, clamping gaps are formed among each other, the mainboard is inserted into the clamping gaps between the first elastic terminals and the second elastic terminals from one side, the MXM board is inserted into the clamping gap between the first elastic terminal and the second elastic terminal from the other side, so that the plug-in connection of the mainboard and the MXM board is realized.

If simple plug-in structure, can cause the non-separation of connector and mainboard when plug MXM board, this is not allowed, so extend fixed part 9 in plastic main part both sides, the fixed part corresponds the mainboard and inserts the side and be equipped with installation slot 10, have the vertical screw thread mounting hole that runs through on the fixed part simultaneously, the mainboard inserts in the installation slot, the fixed mounting of mainboard and connector can be realized to cooperation fastener 11 wrong in screw thread mounting hole and the riveting hole on the mainboard, realize the electricity in the electric connecting part of mainboard inserts the connector like this, and both sides insert the interior cooperation fastener of installation slot and realize fixed mounting, this kind of plug-in cooperation screw fixed structure, can not appear when in-service use because the plug MXM board leads to the condition that connector and mainboard separate.

As shown in fig. 4, the first elastic terminal and the second elastic terminal have the same structure, are arranged up and down symmetrically, are integrally of a sheet type structure, have a transverse base 12, a first elastic arm 13 and a second elastic arm 14 are symmetrically arranged at the left and right below the transverse base part, the free ends of the first elastic arm and the second elastic arm are both V-shaped contacts 15, one end of the transverse base part vertically extends downwards to form a conduction part 16, two side surfaces of the end are provided with convex clamping parts 17, the position-clamping part can prevent the elastic terminal from deviating when the elastic terminal is clamped into the clamping groove (the position corresponding to the inner wall of the clamping groove is synchronously provided with an inward-concave position-clamping part, not shown), the lower section of the other end of the transverse base part is provided with an oblique triangular clamping point 18, the clamping points can increase the holding force of the terminal and the plastic main body, and the elastic terminal is prevented from loosening when the MXM board is inserted and pulled out.

In use, the motherboard is inserted into one side of the first spring arm and the conductive points on the surface of the board contact the V-shaped contacts of the first spring arm, and the MXM board is inserted into one side of the second spring arm and the conductive points on the surface of the board contact the V-shaped contacts of the second spring arm.

The MXM connector of the present embodiment has an assembly structure as shown in fig. 5 to 7, wherein a main board 19 is inserted into the MXM connector from one side and is fixed and assembled by a fastener, and an MXM board 20 is inserted from the other side at an angle with respect to a horizontal plane, so as to ensure smooth insertion, and the elastic terminals are reliably contacted, and after the MXM board is inserted, the MXM board is parallel to the main board.

Referring to FIGS. 8-11, a second embodiment is shown, which is added with a protection circuit and an anti-EMI structure on the basis of the first embodiment, specifically, a positioning PCB 21 is disposed on the plastic main body corresponding to the insertion side of the main board, a raised positioning post 22 is disposed on the surface of the plastic main body for positioning and fixing the PCB, a positioning hole 23 is disposed on the positioning PCB corresponding to the position, an EMI protection circuit is disposed on the positioning PCB, the protection circuit is a conventional EMI protection circuit, the schematic diagram of the protection circuit can refer to the conventional EMI protection circuit, a socket 24 for inserting the main board is disposed in the middle of the positioning PCB, PCB conductive contacts 25 are disposed on the upper and lower sides corresponding to the conduction parts of the first and second elastic terminals, and the PCB conductive contacts are electrically connected to the EMI protection circuit, and after assembly, the conduction parts of the first and second elastic terminals are fixed against the PCB conductive contacts on the positioning PCB, and then be connected with protection circuit, the outside cladding that still has of plastic main part has the iron-clad that is used for anti electromagnetic interference, and this iron-clad includes the last casing 26 and the lower casing 27 of mutual butt joint, goes up the casing simultaneously and inserts the edge extension of side corresponding mainboard and have the connection piece 28 of buckling, and this connection piece tip pastes tight location PCB board on conducting strip 29, and one or more intercommunication in conducting strip 29 and the PCB conducting contact 25 will thereby iron-clad and location PCB are last protection circuit be connected to CPU's electromagnetic interference resistance function on the reinforcing mainboard.

The connector of this embodiment is assembled in a manner consistent with the first embodiment, and specifically, as shown in fig. 12, a main board 19 is inserted into the MXM connector from one side, an MXM board 20 is inserted from the other side, and the MXM board is inserted in a manner consistent with the first embodiment.

The above embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention in any way, and all the modifications, equivalent variations and modifications of the above embodiments according to the present invention are within the scope of the technical solution of the present invention.

Claims

1. A plug-in MXM connector, characterized in that: including the plastic main part, set up first terminal group and second terminal group in the plastic main part relatively, be equipped with the slot that transversely runs through in the plastic main part, the up end interval of slot is equipped with a plurality of draw-in grooves of going up, and the lower terminal interval is equipped with a plurality of draw-in grooves down, first terminal group includes a plurality of first elastic terminal cartridge in last draw-in groove, second terminal group includes a plurality of second elastic terminal cartridges in draw-in groove down, and first elastic terminal and second elastic terminal one-to-one set up, form the centre gripping space each other, and the mainboard inserts between first elastic terminal and the second elastic terminal from one side, and the MXM board inserts between first elastic terminal and the second elastic terminal from the opposite side.

2. The plug-in MXM connector of claim 1, wherein: the plastic main part both sides extend there is the fixed part, and the fixed part corresponds the mainboard and inserts the side and be equipped with the installation slot, has vertical threaded mounting hole that runs through on the fixed part simultaneously, and the mainboard inserts in the installation slot, the fixed mounting of mainboard and connector can be realized to the riveting hole that the cooperation fastener was twisted on threaded mounting hole and mainboard.

3. The plug-in MXM connector of claim 1, wherein: the first elastic terminal and the second elastic terminal are integrally of a sheet type structure and are provided with a transverse base, a first elastic arm and a second elastic arm are symmetrically arranged on the left and right of the lower portion of the transverse base, and the free ends of the first elastic arm and the second elastic arm are both V-shaped contacts.

4. The plug-in MXM connector of claim 3, wherein: and two side surfaces of one end of the transverse base part are provided with convex clamping parts, and the lower section of the other end of the transverse base part is provided with an oblique triangular clamping point.

5. The plug-in MXM connector of claim 1, wherein: the plastic main body is provided with a positioning PCB corresponding to the insertion side of the main board, the surface of the positioning PCB is provided with a PCB conductive contact piece corresponding to the transverse base positions of the first elastic terminal and the second elastic terminal, the center of the positioning PCB is provided with a socket for the main board to be inserted, and the PCB conductive contact piece is communicated with an electromagnetic interference protection circuit on the positioning PCB.

6. The plug-in MXM connector of claim 5, wherein: the outside cladding of plastic main part has the iron-clad, and this iron-clad includes the last casing and the lower casing of mutual butt joint, the edge that goes up the casing and correspond the mainboard and insert the side extends and has the connection piece of buckling, and this connection piece tip pastes the conducting strip on the tight location PCB board, conducting strip and one or more PCB conductive contact intercommunication.