CN219874193U - Stacked electric connector - Google Patents

Abstract

A stacked electric connector comprises an upper electric connector and a lower electric connector, wherein the upper electric connector comprises an upper body and an upper terminal, and the lower electric connector comprises a lower body and a lower terminal; the upper body is provided with a containing cavity, the lower body is assembled in the containing cavity, the two opposite side walls of the containing cavity of the upper body are provided with mounting grooves, protruding ribs extending along the front-back direction are arranged in the mounting grooves, the protruding ribs are further provided with interference ribs extending along the front-back direction, the lower body is provided with a mounting part, and the mounting part is provided with a longitudinal groove; the mounting part is assembled in the mounting groove, the convex rib is assembled in the longitudinal groove, so that the lower body is fixed in the accommodating cavity, and the interference rib is fixed in the longitudinal groove in an interference manner. The stacked electric connector further fixes the upper body and the lower body by the interference ribs, thereby ensuring the flatness of the terminal pins of the whole electric connector.

Description

Stacked electric connector

[ field of technology ]

The present utility model relates to a stacked electrical connector.

[ background Art ]

Chinese patent No. 1398019a discloses an electrical connector assembly of the type comprising an upper connector and a lower connector stacked upon one another, each connector comprising an insulative housing and a plurality of contacts secured in place within the housing, the contacts of each connector having respective sidewalls extending downwardly through and fitting into a guide support and spaced apart from the insulative housing of the conductive tail upper connector to form a pair of elongated legs, and the insulative housing of the lower connector also having respective sidewalls extending downwardly but forming a pair of stubby legs shorter than the elongated legs, the lower connector being removably secured between the elongated legs so as to be snugly received within the upper connector, the guide support being removably secured to the lower ends of the elongated legs and/or stubby legs, the upper and lower connectors being separable from one another for separate use. The resilient arms depend from corresponding bottoms of the upper housing body. These resilient arms facing each other press the sides of the underlying connector housing towards each other. The resilient arms adjacent the upper end of the inner corners of the elongate front legs and disposed therein each have an inwardly facing jaw. On the other hand, the elongated rear leg is integrally formed with a projection at an inner surface of a lower end thereof. These tabs catch and retain the guide support (i.e., the locator).

However, in practical products, by fixing the claws of the elastic arms, better positioning in assembly, especially stacking up and down, cannot be achieved, and flatness of the terminal pins cannot be ensured.

It is therefore desirable to design an improved electrical connector that overcomes the above-described drawbacks.

[ utility model ]

The present utility model provides a stacked electrical connector, which can improve assembly effect.

In order to solve the problems, the utility model adopts the following technical scheme: a stacked electric connector comprises an upper electric connector and a lower electric connector, wherein the upper electric connector comprises an upper body and an upper terminal, and the lower electric connector comprises a lower body and a lower terminal; the upper body is provided with a containing cavity, and the lower body is assembled in the containing cavity; the method is characterized in that: the upper body is provided with mounting grooves on two opposite side walls of the accommodating cavity, convex ribs extending in the front-rear direction are arranged in the mounting grooves, interference ribs extending in the front-rear direction are further arranged on the convex ribs, the lower body is provided with a mounting part, and the mounting part is provided with a longitudinal groove; the mounting part is assembled in the mounting groove, the convex rib is assembled in the longitudinal groove, so that the lower body is fixed in the accommodating cavity, and the interference rib is fixed in the longitudinal groove in an interference manner.

Compared with the prior art, the utility model further fixes the upper body and the lower body by the interference rib, thereby ensuring the flatness of the terminal pins of the whole electric connector.

[ description of the drawings ]

Fig. 1 is a perspective view of a stacked electrical connector of the present utility model.

Fig. 2 is a perspective view of another angle of fig. 1.

Fig. 3 is a perspective view of another angle of fig. 1.

Fig. 4 is an exploded perspective view of fig. 3.

Fig. 5 is an enlarged view of a portion shown by a circle in fig. 4.

Fig. 6 is a perspective view of the four terminals of fig. 1.

Fig. 7 is a cross-sectional view of fig. 1 along the broken line A-A.

Fig. 8 is a cross-sectional view of fig. 1 along the broken line B-B.

Fig. 9 is a cross-sectional view of fig. 1 along the broken line C-C.

[ reference numerals ]

Vertical portion 233 of fixing portion 211 of stacked electrical connector 100

Solder 234 of spring arm 212 of upper electrical connector 101

Lower body 30 of lower electrical connector 102 pin 213

Front end face 31 of horizontal portion 216 of upper body 10

Lower clamping groove 32 of vertical part 217 of front end face 11

First interference portion 218 of upper card slot 12 mounts 34

Longitudinal groove 35 of second interference portion 219 of housing chamber 13

Side wall 131 second upper terminal 22 lower key 38

Mounting groove 14 fixing portion 221 lower terminal 40

First upper terminal 41 of elastic portion 222 of rib 15

Second lower terminal 42 of pin 223 of interference rib 16

The first interference portion 228 of the boss 17 catches the plate 50

Upper fixing portion 51 of second interference portion 229 of upper key portion 18

Lower fixing portion 52 of horizontal portion 231 of upper terminal 20

The inclined portion 232 of the first upper terminal 21 catches the plate portion 53

The utility model will be further described in the following detailed description in conjunction with the above-described figures.

[ detailed description ] of the utility model

Referring to fig. 1-2, the present utility model discloses a stacked electrical connector 100, which is mounted on a circuit board and can be plugged with two electronic cards, and in this embodiment, the electrical connector can be horizontally inserted with two m.2 electronic cards, which are arranged up and down.

The electrical connector 100 includes an upper electrical connector 101 and a lower electrical connector 102, the upper electrical connector 101 includes an upper body 10 and an upper terminal 20, and the lower electrical connector 102 includes a lower body 30 and a lower terminal 40. The upper body 10 is provided with a front end face 11, an upper clamping groove 12 penetrating forward and a containing cavity 13. The lower body 30 is provided with a front end face 31 and a lower clamping groove 32 penetrating forward. The lower body 30 is assembled in the housing cavity 13.

The upper body 10 is provided with mounting grooves 14 in two opposite side walls 131 of the housing chamber 13, ribs 15 extending in the front-rear direction are provided in the mounting grooves 14, and the ribs 15 are further provided with interference ribs 16 extending in the front-rear direction. The lower body 30 is provided with a mounting portion 34 provided with a longitudinal slot 35. The mounting portion 34 is assembled in the mounting groove 14, the rib 15 is assembled in the longitudinal groove 35, thereby fixing the lower body 30 in the housing chamber 13, the lower body 30 is tightly restrained in the housing chamber 13 in the up-down direction, and the interference rib 16 is interferometrically fixed in the longitudinal groove 35, as shown in fig. 9, so that the lower body 30 is tightly restrained in the housing chamber 13 in the left-right direction. Thus, the positional relationship of the upper and lower bodies 10, 30 is relatively fixed, thereby ensuring the flatness of the upper and lower terminal pins.

In this embodiment, the accommodating cavity 13 is penetrated forward, and the lower body 30 is assembled to the accommodating cavity 13 from the front end face 11 of the upper body. The two interference ribs 16 are disposed opposite to each other, and the interference ribs 16 are formed to be gradually thicker from front to rear as viewed from front to rear, and interference occurs in the longitudinal grooves 35 at the interference ribs 16, thereby more tightly fixing the lower body 30 in the receiving chamber 13.

The electrical connector 100 further comprises two catching plates 50, the lower portion of the mounting groove 14 forms a boss 17, each catching plate 50 comprises an upper fixing portion 51, a lower fixing portion 52 and a catching plate portion 53, the upper fixing portion 51 is inserted into and fixed to the boss 17 of the upper body, and the lower fixing portion 52 is fixed to the mounting portion 34 of the lower body.

The upper terminals 20 include a row of first upper terminals 21 and a row of second upper terminals 22, and the first upper terminals 21 include fixing portions 211, elastic arms 212 extending forward from the fixing portions into the upper clamping grooves 12, and pins 213 extending from the fixing portions. The fixing portion 211 includes a horizontal portion 216 and a vertical portion 217, a first interference portion 218 is formed at a front end of the horizontal portion, and a second interference portion 219 protrudes forward from the vertical portion 217, and the first and second interference portions have barbs and are fixed in the upper body 10 with interference.

The second upper terminal 22 includes a fixing portion 221, an elastic portion 222 extending from the fixing portion back into the upper clamping groove, and a pin 223 extending from the fixing portion back and then downward, wherein the fixing portion is in a vertical structure. The first and second interference parts 228, 229 protrude rearward from the fixing part 221, and are inserted into the upper body 10 to be fixed thereto. The pins 223 include horizontal portions 231, inclined portions 232, vertical portions 233, and welding portions 234 extending rearward in order, and referring to fig. 2, the pins 223 penetrate through the accommodating chambers 13, and a space is left between the lower body and the upper body in the front-rear direction.

The lower terminals 40 include a row of second upper terminals 41 and second lower terminals 42.

The upper body is provided with an upper key portion 18 located in the upper clamping groove, the lower body is provided with a lower key portion 38 located in the lower clamping groove, and the upper key portion and the lower key portion are respectively adjacent to two opposite sides.

The above embodiments are preferred embodiments of the present utility model, but not all; any equivalent modifications of the solution according to the present utility model will occur to those skilled in the art upon reading the present specification, and are intended to be covered by the claims of the present utility model.

Claims (8)

1. A stacked electric connector comprises an upper electric connector and a lower electric connector, wherein the upper electric connector comprises an upper body and an upper terminal, and the lower electric connector comprises a lower body and a lower terminal; the upper body is provided with a containing cavity, and the lower body is assembled in the containing cavity; the method is characterized in that: the upper body is provided with mounting grooves on two opposite side walls of the accommodating cavity, convex ribs extending in the front-rear direction are arranged in the mounting grooves, interference ribs extending in the front-rear direction are further arranged on the convex ribs, the lower body is provided with a mounting part, and the mounting part is provided with a longitudinal groove; the mounting part is assembled in the mounting groove, the convex rib is assembled in the longitudinal groove, so that the lower body is fixed in the accommodating cavity, and the interference rib is fixed in the longitudinal groove in an interference manner.

2. The stacked electrical connector of claim 1, wherein: the upper body is provided with a front end face and an upper clamping groove penetrating forwards, the accommodating cavity penetrates forwards, and the lower body is assembled to the accommodating cavity from the front end face; the lower body is provided with a lower clamping groove penetrating forward and a front end face.

3. The stacked electrical connector of claim 1, wherein: the two interference ribs are arranged face to face, and the interference ribs are of a structure which is gradually thickened from front to back when seen from front to back.

4. The stacked electrical connector of claim 1, wherein: the electric connector comprises two grabbing plate pieces, a boss is formed below the mounting groove, each grabbing plate piece comprises an upper fixing portion, a lower fixing portion and a grabbing plate portion, the upper fixing portion is inserted and fixed into the boss of the upper body, and the lower fixing portion is fixed to the mounting portion of the lower body.

5. The stacked electrical connector of claim 2, wherein: the upper terminals comprise a row of first upper terminals and a row of second upper terminals, the first upper terminals comprise fixing parts, elastic arms which enter the upper clamping grooves forwards from the fixing parts and pins which extend from the fixing parts, and the second upper terminals comprise fixing parts, elastic parts which extend backwards from the fixing parts into the upper clamping grooves and pins which extend downwards from the fixing parts.

6. The stacked electrical connector of claim 5, wherein: the fixed part of the first upper terminal comprises a horizontal part and a vertical part, the front end of the horizontal part forms a first interference part, a second interference part protrudes forwards from the vertical part, and the first interference part and the second interference part are provided with barbs and are fixed in the upper body in interference.

7. The stacked electrical connector of claim 6, wherein: the pin of the second upper terminal comprises a horizontal part, an inclined part, a vertical part and a welding part which extend backwards in sequence, the pin of the second upper terminal penetrates through the accommodating cavity, and a space is reserved between the lower body and the upper body in the front-back direction.

8. The stacked electrical connector of claim 2, wherein: the upper body is provided with an upper key part positioned in the upper clamping groove, the lower body is provided with a lower key part positioned in the lower clamping groove, and the upper key part and the lower key part are respectively adjacent to two opposite sides.