A socket connector

Abstract

This utility model belongs to the field of connector technology and provides a socket connector, including a housing and a contact fixed inside the housing. The housing has a groove extending from the edge of the housing along its width, exposing the solder cup of the contact within the groove. The groove has a through-hole extending through to the back of the housing along its thickness. A shielding sheet is fixed to the back of the housing. In this application, the through-hole extending to the back of the housing within the groove, combined with the shielding sheet fixed to the back, allows the shielding layer of the cable fixed to the contact to be soldered to the shielding sheet through the through-hole, thereby meeting the shielding requirements of different cables transmitting signals within the socket connector.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, and in particular relates to a socket connector. Background Technology

[0002] CN114895077A discloses a chip testing device in which several socket connectors are arranged in a circumferential array within each base. The ends of the socket connectors are connected to cables to form a link. The cables are divided into shielded cables and unshielded cables. Each link has different functional requirements. Some links require each Pogopin probe on the socket to be connected to an unshielded cable, with the shielding layers of the cables shorted together and connected to the grounding part of the whole device through an unshielded wire. Some links require two adjacent Pogopins to be grouped together, with one connected to the core wire of the cable and the other connected to the shielding layer of the cable.

[0003] In contrast, existing socket connectors do not have a structure that directly connects to the shielding layer. They require a cable for connection, which complicates the assembly process and affects product reliability. Utility Model Content

[0004] To solve the above-mentioned technical problems, this application proposes a socket connector, the specific technical solution of which is as follows: A socket connector includes a housing and a contact fixed within the housing. The housing has a groove extending from the edge of the housing along the width direction of the housing to expose the solder cup of the contact within the groove. The groove has a through hole extending through the housing to the back of the housing along the thickness direction. A shielding sheet is fixed to the back of the housing.

[0005] In one embodiment, the groove wall of the first groove is arc-shaped.

[0006] In one embodiment, the groove has a stepped surface, the solder cup is located on one side of the stepped surface, and the other side of the stepped surface is used to accommodate a cable larger than the solder cup.

[0007] In one embodiment, the back of the housing has a second groove, and the shielding sheet is embedded in the second groove.

[0008] In one embodiment, the shielding sheet has welding holes, and when the shielding sheet is embedded in the second groove, the welding holes are aligned with the through holes.

[0009] In one embodiment, the shielding sheet has a limiting protrusion and a buckle on its edge, the limiting protrusion and the buckle being disposed on opposite sides of the edge of the shielding sheet; the sidewall of the second groove has a limiting hole and a locking hole, the limiting hole and the locking hole being disposed on opposite sides of the sidewall of the second groove. When the shielding sheet is embedded in the second groove, the limiting protrusion is embedded in the limiting hole, and the buckle is embedded in the buckle hole.

[0010] In one embodiment, the shielding sheet has a rolled edge on the edge on the same side as the buckle, and the sidewall of the second groove forms a stop surface that matches the rolled edge. When the shielding sheet is embedded in the second groove, the rolled edge abuts against the stop surface.

[0011] In one embodiment, a shorting tab is also included, which is received in a groove to connect the solder cup to the shielding plate; In one embodiment, the housing has mounting holes for accommodating the mounting of a contact element, and positioning holes corresponding to each mounting hole, the positioning holes being perpendicular to and communicating with the mounting holes, the contact element having an annular groove exposed in the positioning hole, the positioning hole having a positioning element embedded therein, the positioning element having a clamping groove that engages with the annular groove.

[0012] In one embodiment, the clamping groove has a funnel-shaped opening, the size of which gradually increases from the clamping groove to the distal end, and the diameter of the contact member at the annular groove is greater than the minimum size of the opening and less than the maximum size of the opening.

[0013] In one embodiment, the housing also has an observation port communicating with the mounting hole.

[0014] The beneficial effects of this utility model are as follows: (1) In this application, a through hole is provided in the groove to the back of the housing. With the shielding plate fixed on the back, the shielding layer of the cable fixed to the contact can be connected to the shielding plate by welding through the through hole, thereby meeting the shielding requirements of different cables in the socket connector when transmitting signals. (2) Setting the second groove to install the shielding plate can, on the one hand, embed and fix the shielding plate based on the thickness of the shell itself, without increasing the thickness of the socket connector. On the other hand, the second groove is formed in a recessed manner in the shell, and it can form a through hole by cooperating with the arc-shaped first groove, without having to occupy the thickness of the shell to form a through hole separately. Attached Figure Description

[0015] Figure 1 The diagram shown is a structural schematic of a socket connector; Figure 2 The diagram shown is a structural schematic of groove one on the shell; Figure 3 The diagram shown is a structural schematic of the second groove on the back of the casing; Figure 4 What is shown is Figure 3 A magnified view of a section at point A in the middle; Figure 5 The diagram shown is a schematic representation of the shielding sheet. Figure 6 The diagram shows the state of the shielding sheet being stuck in groove two; Figure 7 The diagram shows the positioning structure of the contact element. Detailed Implementation

[0016] In the following description, certain specific details are set forth to provide a thorough understanding of various embodiments. However, those skilled in the art will understand that the present invention can be practiced without these details. In other instances, well-known structures have not been shown or described in detail to avoid unnecessarily obscuring the description of the embodiments. Unless the context otherwise requires, throughout the specification and appended claims, the word "comprising" shall be interpreted in an open-ended, inclusive sense, i.e., as "including but not limited to".

[0017] See Figure 1 This is a schematic diagram of the socket connector in this application. The socket connector includes a housing 10, a contact 20 fixed inside the housing 10, and a cable 30 fixedly connected to the end of the contact 20, so as to... Figure 1 As shown in the diagram, the housing 10 has three directions: length x, width y, and thickness z. Several contact elements 20 are spaced apart along the length of the housing 10 to transmit multiple signals.

[0018] See Figure 2 A groove 11 is provided on the housing 10. The groove 11 extends from the edge of the cable 30 to the other side along the width direction of the housing 10, and exposes the solder cup 21 of the contact 20 in the groove 11, so that the cable 30 can be accommodated in the groove 11 and its center conductor 31 can be soldered and fixed to the solder cup 21 of the contact 20.

[0019] In one embodiment, the groove wall of the groove 11 is arc-shaped to accommodate the mounting contact 20 and the welding cup 21 at the tail end of the contact 20.

[0020] In addition, a stepped surface 11a is provided inside the groove 11. The stepped surface 11a divides the groove 11 into two arc segments. The arc radius on the side closer to the contact 20 is smaller, and the arc radius on the side closer to the cable 30 is larger, thus forming the stepped surface 11a. As a result, the two arc segments of different sizes can better fit and accommodate the solder cup 21 and the cable 30.

[0021] The cables 30 connected to the socket connector include those with and without shielding layers 32. Different links have different functional requirements. Some links require each contact 20 on the socket to be connected to an unshielded cable, with the shielding layers of the cables shorted together and connected to the grounding part of the whole machine through an unshielded wire. Some links require two adjacent contacts 20 to be grouped together, with one connected to the core wire of the cable and the other connected to the shielding layer of the cable. In order to meet the shielding requirements of different cables 30 in the socket connector when transmitting signals, the housing 10 of this application is provided with a through hole 12 corresponding to each groove 11. The through hole 12 extends from the groove 11 to the other side of the housing 10 along the thickness direction of the housing 10. By fixing a shielding plate 40 on the opposite side of the groove 11, the shielding plate 40 is soldered to the shielding layer 32 of the cable 30 through the through hole 12 to meet the shielding requirements. Correspondingly, the through hole 12 is located outside the solder cup 21 to avoid the connection between the solder cup 21 and the center conductor 31.

[0022] See Figure 3 and Figure 4 The back of the housing 10 has a second groove 13, which extends along the length of the housing 10 and covers all the first grooves 11. The term "back" here refers to the relative position of the first grooves 11. If the first grooves 11 are located on the front of the housing 10, then the second groove 13 is located on the back of the housing 10, and the through hole 12 is directly connected to the second groove 13. The second groove 13 is used to fix and install the shielding sheet 40.

[0023] The second groove 13 is provided to install the shielding plate 40. On the one hand, the shielding plate 40 can be embedded and fixed based on the thickness of the housing 10 itself, without increasing the thickness of the socket connector. On the other hand, the second groove 13 is formed in a recessed manner into the housing 10. It can form a through hole 12 by cooperating with the arc-shaped first groove 11, without having to occupy the thickness of the housing 10 to form the through hole 12 separately.

[0024] Figure 5 The diagram shows the structure of the shielding sheet 40. The shielding sheet 40 is a long strip shape adapted to the second groove 13 and has a number of solder holes 40d along its length. The spacing of the solder holes 40d is the same as the spacing of the first groove 11. After the shielding sheet 40 is fixed in the second groove 13, the solder holes 40d are aligned with the through holes 12, so that after the cable 30 with the shielding layer 32 is soldered and fixed to the solder cup 21, the shielding sheet 40 and the shielding layer 32 of the cable 30 can be soldered and fixed by soldering through the solder holes 40d and the through holes 12.

[0025] The shielding sheet 40 has a limiting protrusion 40a and a buckle 40b on its edge, and the limiting protrusion 40a and the buckle 40b are located on the opposite sides of the edge of the shielding sheet 40; the side wall of the second groove 13 has a limiting hole 13a and a locking hole 13b, and the limiting hole 13a and the locking hole 13b are located on the opposite sides of the side wall of the second groove 13. After the limiting protrusion 40a is inserted into the limiting hole 13a, the shielding sheet 40 is pressed into the second groove 13 and the buckle 40b is locked in the locking hole 13b at the same time, so that the shielding sheet 40 can be fixed on the second groove 13.

[0026] The length of the shielding plate 40 can be set according to actual requirements, for example, covering two grooves 11, covering three grooves 11, or covering all grooves 11.

[0027] In addition, the upper limit protrusion 40a and the buckle 40b of the shielding plate 40 are spaced apart along the length direction of the shielding plate 40, and correspondingly, the limit hole 13a and the buckle hole 13b are also spaced apart along the length direction of the groove 13.

[0028] The shielding plate 40 also has a rolled edge 40c on the same side as the buckle 40b. The side wall of the second groove 13 forms a stop surface 13c that matches the rolled edge 40c. When the shielding plate 40 is inserted into the second groove 13, the rolled edge 40c contacts the stop surface 13c and is squeezed by the stop surface 13c. After the shielding plate 40 is inserted into the second groove 13, the rolled edge 40c abuts against the stop surface 13c, and at the same time, it presses the shielding plate 40 against the side of the second groove 13, thereby increasing the fixing strength. Figure 6 The diagram shows the shielding sheet 40 being held in groove 2 13.

[0029] See Figure 2 The socket connector also includes a shorting piece 50, which is set in the groove 11 as required to connect the solder cup 21 and the shield 40. The shorting piece 50 also has solder holes so that the shorting piece 50, solder cup 21 and shield 40 can be fixedly connected by soldering.

[0030] See Figure 4 The housing 10 has mounting holes 14 for accommodating the installation of the contact member 20, and positioning holes 15 corresponding to each mounting hole 14. The mounting holes 14 extend in the width direction, and the positioning holes 15 extend in the thickness direction and communicate with the mounting holes 14. The contact member 20 is assembled in the housing 10 through the mounting holes 14.

[0031] See Figure 7 The contact 20 has an annular groove 22 at its tail end. After the contact 20 is assembled into the housing 10, the annular groove 22 is exposed through the positioning hole 15. The positioning member 60 is pressed into the annular groove 22 from the positioning hole 15, thereby completely fixing the contact 20 in the housing 10 and preventing it from falling off.

[0032] The size of the positioning member 60 is adapted to the positioning hole 15. The middle part of the positioning member 60 has a clamping groove 61 whose size is adapted to the annular groove 22, and an opening 62 communicating with the clamping groove 61. When the positioning member 60 is installed, it enters the clamping groove 61 through the opening 62 via the annular groove 22 part of the contact member 20. At the same time, the two ends of the positioning member 60 abut against the two side walls of the annular groove 22 respectively, ensuring the stability of the contact member 20 after positioning.

[0033] The opening 62 is trumpet-shaped, and its size gradually decreases from the outside towards the clamping groove 61. The size of the large-diameter end of the opening 62 is larger than the size of the contact member 20 at the annular groove 22, so that the contact member 20 can enter the clamping groove 61 through the opening 62. At the same time, the size of the small-diameter end of the opening 62 is smaller than the size of the contact member 20 at the annular groove 22, so as to ensure that the contact member 20 will not fall off after entering the clamping groove 61.

[0034] The housing 10 also has an observation port 16 that communicates with the mounting hole 14.

[0035] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A socket connector, comprising a housing and contacts fixed within the housing, characterized in that, The housing has a groove, which extends from the edge of the housing along the width direction to expose the welding cup of the contact element. The groove has a through hole extending through the back of the housing along the thickness direction. A shielding sheet is fixed to the back of the housing.

2. The receptacle connector of claim 1, wherein, The groove wall of the first groove is curved.

3. A socket connector according to claim 2, characterized in that, The groove has a stepped surface, the welding cup is located on one side of the stepped surface, and the other side of the stepped surface is used to accommodate cables larger than the welding cup.

4. A socket connector according to claim 1, characterized in that, The back of the housing has a second groove, and the shielding sheet is embedded in the second groove.

5. The receptacle connector of claim 1, wherein, The shielding sheet has welding holes, and when the shielding sheet is embedded in the second groove, the welding holes are aligned with the through holes.

6. The receptacle connector of claim 1, wherein, The shielding sheet has a limiting protrusion and a buckle on its edge, and the limiting protrusion and buckle are disposed on the edges of opposite sides of the shielding sheet; the side wall of the second groove has a limiting hole and a locking hole, and the limiting hole and locking hole are disposed on the side walls of opposite sides of the second groove. When the shielding sheet is embedded in the second groove, the limiting protrusion is embedded in the limiting hole, and the buckle is embedded in the buckle hole.

7. A socket connector according to claim 6, characterized in that, The shielding sheet has a rolled edge on the same side as the buckle, and the sidewall of the second groove forms a stop surface that matches the rolled edge; When the shielding sheet is embedded in the second groove, the rolled edge abuts against the stop surface.

8. The receptacle connector of claim 1, wherein, It also includes a shorting piece, which is housed in a groove to connect the solder cup to the shielding plate.

9. The receptacle connector of claim 1, wherein, The housing has mounting holes for accommodating the installation of the contact element, and positioning holes corresponding to each mounting hole. The positioning holes are perpendicular to and communicate with the mounting holes. The contact element has an annular groove exposed in the positioning hole. A positioning element is embedded in the positioning hole, and the positioning element has a clamping groove that engages with the annular groove.

10. The receptacle connector of claim 9, wherein, The clamping groove has a funnel-shaped opening, the size of which gradually increases from the clamping groove to the distal end. The diameter of the contact member at the annular groove is greater than the minimum size of the opening and less than the maximum size of the opening.

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