A connector with a shielding shell

Abstract

The present invention discloses a connector with a shielding shell, comprising a connector body, the connector body comprising an insulating shell and a plurality of terminal modules arranged within the insulating shell, the connector body being connected to the shielding shell via a mating assembly, the shielding shell comprising a bent portion and a connecting portion, the bent portion contacting the upper surfaces of the plurality of terminal modules, and the connecting portion contacting a side surface of the insulating shell; the mating assembly comprising a first mating structure, a second mating structure for limiting the displacement of the shielding shell in the height direction, and a third mating structure for limiting the displacement of the shielding shell in the width direction, the first mating structure being used to limit the displacement of the shielding shell in the length and width directions. The present invention fully limits the length, width, and height of the shielding shell, making the mating between the shielding shell and the connector body more reliable, improving the shielding effect, and having relatively low processing difficulty.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a connector with a shielding shell. Background Art

[0002] The 2mm connector is a high-speed, two-piece connector for printed circuit boards with a basic 2mm grid. It can transmit high-density, high-speed signals and is used for connecting single boards and backplanes in the basic unit plug-in boxes of communication equipment, as well as for backplane and single-board lead-out cables and parallel board-to-board connections. Two-piece connectors are divided into female connectors and male connectors that mate with the female connector. Currently, the connection structure between the shield shell and the connector body of a 2mm bent female connector generally uses a shield shell with hooks that mate with the connector body's slots, or a tongue-and-groove structure. Both structures have poor machinability, and the structural reliability and stability of the shield shell after mating with the connector body are poor. Relative displacement between the shield shell and the connector body is prone to occur, which in turn affects the shielding effect. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the present invention provides a connector with a shielding shell, which can fully limit the length, width and height of the shielding shell, making the fit between the shielding shell and the connector body more reliable and improving the shielding effect.

[0004] The present invention provides a technical solution for solving the above-mentioned technical problems. The technical solution is as follows: a connector with a shielded shell, comprising a square-structured connector body, the connector body comprising an insulating shell and a plurality of terminal modules arranged within the insulating shell, the connector body being connected to the shielded shell via a mating assembly, the shielded shell comprising a horizontal bent portion and a vertical connecting portion, the bent portion contacting the upper surfaces of the plurality of terminal modules, and the connecting portion contacting a side surface of the insulating shell;

[0005] The mating component includes a first mating structure, a second mating structure for limiting the displacement of the shielding shell in the height direction, and a third mating structure for limiting the displacement of the shielding shell in the width direction. The first mating structure includes a clamping strip arranged at the bottom of the connecting part and a clamping slot for inserting the clamping strip arranged at the bottom of the insulating shell. The clamping strip is provided with at least one limiting groove, and the clamping slot is provided with at least one limiting protrusion that cooperates with the limiting groove. The limiting groove and the limiting protrusion cooperate to limit the displacement of the shielding shell in the length direction.

[0006] Furthermore, the side of the insulating shell in contact with the connecting part is a mating part, and the second mating structure includes at least one positioning groove provided on the mating part and a limiting piece provided on the connecting part corresponding to the position of the positioning groove, and the limiting piece is used to extend into and press against the positioning groove.

[0007] Furthermore, the third matching structure includes a fixing protrusion provided on the side of the bending portion in contact with the terminal module and a matching groove provided on the upper surface of the terminal module, and the two side surfaces in the width direction of the matching groove respectively match the corresponding two side surfaces of the fixing protrusion.

[0008] Furthermore, guide columns are provided at the bottom positions on both sides of the insulating shell in the width direction, and the card slots are located on both sides of the guide columns in the length direction of the insulating shell.

[0009] Furthermore, the connecting portion is provided with an avoidance groove for avoiding the guide column.

[0010] Furthermore, at least one connection terminal for connecting to a printed circuit board is provided on a side of the bent portion away from the connection portion.

[0011] Furthermore, the lower portion of the insulating shell is provided with a plurality of slots for plugging in terminal modules along its length direction, and the lower portion of the terminal module is plugged into the slots.

[0012] Furthermore, the matching portion is provided with a plurality of engaging grooves for connecting the terminal module, and the terminal module is provided with positioning pieces extending into and pressing against the upper surfaces of the engaging grooves.

[0013] Furthermore, slide bars are provided on both sides of the engaging groove on the mating portion, and a slide groove for limiting the position of the terminal module is formed between two adjacent slide bars. The bottom of the slide groove is connected to the slot, and a slide column that cooperates with the slide groove is provided on the terminal module.

[0014] Furthermore, a contact piece is provided at the bottom of the connecting portion, and the contact piece is used to contact a grounding pin, and the grounding pin is provided in a male connector that is matched with the connector with a shielding shell.

[0015] According to the above technical solution, the beneficial effects of the present invention are:

[0016] (1) The connector with a shielding shell provided by the present invention has a right-angle structure, and the shielding shell and the connector body are matched with each other through a first matching structure, a second matching structure and a third matching structure, which fully limits the length, width and height of the shielding shell, making the matching between the shielding shell and the connector body more reliable, improving the shielding effect, and its processing difficulty is relatively small.

[0017] (2) Each terminal module and the insulating housing are limited by positioning pieces and snap-fit grooves, slide posts and slide grooves, which stabilize the positional relationship between the terminal module and the insulating housing and ensure their compatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of Example 1 of the present invention;

[0019] Figure 2 Schematic diagram of the shielding shell in embodiment 1 of the present invention;

[0020] Figure 3 Schematic diagram of the fixing protrusion in Example 1 of the present invention;

[0021] Figure 4 This is a schematic diagram of the connector body in Example 1 of the present invention;

[0022] Figure 5 This is a schematic diagram of the back side of the connector body in Example 1 of the present invention;

[0023] Figure 6 This is a schematic diagram of the cooperation between the insulating housing and the terminal module in Example 1 of the present invention;

[0024] Figure 7 for Figure 1 A-A cross-sectional schematic diagram;

[0025] Figure 8 This is a schematic diagram of the cooperation between Example 1 of the present invention and the male connector.

[0026] Markings in the figure: 1. Connector body, 2. Shielding shell, 21. Avoidance groove, 22. Contact piece, 23. Connecting part, 24. Bending part, 25. Connecting terminal, 3. First matching structure, 31. Card strip, 32. Limiting groove, 33. Card slot, 34. Limiting protrusion, 4. Second matching structure, 41. Limiting piece, 42. Positioning groove, 5. Third matching structure, 51. Fixing protrusion, 52. Matching through groove, 6. Insulating shell, 61. Guide column, 62. Engaging groove, 63. Slot, 64. Matching part, 65. Slide bar, 66. Slide groove, 7. Terminal module, 71. Positioning piece, 72. Slide column, 73. Fisheye terminal group, 8. Male connector, 81. Grounding pin. DETAILED DESCRIPTION

[0027] It should be noted that relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including a..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements. In addition, the terms "upper" and "lower" are based on the orientation and positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating that the device or component referred to must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Embodiment 1 of the present invention:

[0030] like Figure 1-7 As shown, a connector with a shielded shell includes a square-shaped connector body 1, an insulating shell 6, and multiple terminal modules 7 arranged within the insulating shell 6. The connector body 1 is connected to a shielded shell 2 via a mating assembly. The shielded shell 2 is used to prevent electromagnetic and electrostatic interference radiation from entering the connector body 1. The shielded shell 2 has a right-angle structure and includes a horizontal bend 24 and a vertical connecting portion 23. The bend 24 contacts the upper surfaces of the multiple terminal modules 7, and the connecting portion 23 contacts a side surface of the insulating shell 6. The side of the insulating shell 6 that contacts the connecting portion 23 is a mating portion 64.

[0031] The length, width and height of the shielding shell 2 correspond to Figure 1 The mating assembly includes a first mating structure 3, a second mating structure 4 for limiting the height displacement of the shield shell 2, and a third mating structure 5 for limiting the width displacement of the shield shell 2. The first mating structure 3, the second mating structure 4, and the third mating structure 5 are all used to more firmly secure the shield shell 2 to the connector body 1, preventing it from loosening and deflecting.

[0032] The first mating structure 3 includes a long, strip-shaped retaining strip 31 located at the bottom of the connecting portion 23 and a slot 33 located at the bottom of the insulating shell 6 for inserting the retaining strip 31. When the retaining strip 31 engages with the slot 33, the front and rear side surfaces of the retaining strip 31 engage with the front and rear side surfaces of the slot 33, respectively, to limit the widthwise displacement of the shielding shell 2. The retaining strip 31 has multiple limiting slots 32 defined therein, and the slot 33 includes multiple limiting protrusions 34 that mate with the limiting slots 32. The limiting slots 32 and limiting protrusions 34 cooperate to limit the longitudinal displacement of the shielding shell 2. When the limiting slots 32 and limiting protrusions 34 engage, the limiting slots 32 engage with the limiting protrusions 34 from top to bottom.

[0033] The second mating structure 4 includes a plurality of square positioning slots 42 provided in the middle of the mating portion 64 and a limiting piece 41 provided in the middle of the connecting portion 23 for extending into and pressing against the upper surface of the positioning slot 42. The limiting piece 41 is a puncture spring structure, consisting of a puncture groove formed on the connecting portion 23 and a vertical first spring piece provided at the bottom end of the puncture groove. The first spring piece tilts toward the side close to the insulating shell 6, and the upper surface of the first spring piece presses against the upper surface of the positioning slot 42 to limit the relative position between the shielding shell 2 and the insulating shell 6. During the process of installing the shielding shell 2 from top to bottom along the connecting portion 23 into the connector body 1, the first spring piece is in a state of being compressed and deformed outward until the first spring piece moves to the position of the positioning slot 42, at which point the upper surface of the first spring piece presses into and presses against the upper surface of the positioning slot 42, at which point the first spring piece returns to its original state.

[0034] The third mating structure 5 includes a fixing protrusion 51 provided on the side of the bent portion 24 that contacts the terminal module 7, and a mating slot 52 provided on the upper surface of the terminal module 7. The widthwise side surfaces of the mating slot 52 mate with the corresponding side surfaces of the fixing protrusion 51. The fixing protrusion 51 is a piercing protrusion structure, consisting of a first groove formed in the bent portion 24 and an arched protrusion provided at the bottom of the first groove. The two opposing arched sides of the arched protrusion are connected to the two sides of the bottom of the first groove, and the other two sides of the arched protrusion mate with the widthwise side surfaces of the mating slot 52.

[0035] Guide posts 61 are provided at the bottom of both sides of the insulation housing 6 along its width. The slots 33 are located on either side of the guide posts 61 along its length. The guide posts 61 serve as guides during connector installation. The connector 23 is provided with a clearance groove 21 for circumventing the guide posts 61. Multiple contacts 22 are provided on either side of the clearance groove 21 at the bottom of the connector 23. These contacts 22 are piercing spring-type structures, consisting of a second groove formed in the connector 23 and a second vertical spring at the bottom of the second groove. The second spring is tilted away from the connector 23.

[0036] like Figure 8As shown, this embodiment is used to mate with a male connector 8, and the two together form a connector assembly. The male connector 8 is provided with multiple grounding pins 81. When this embodiment is inserted into the male connector 8 from top to bottom, the grounding pins 81 on the male connector 8 press the contact 22 inward, ensuring reliable contact between the contact 22 and the grounding pins 81 for grounding, thereby providing a shielding effect.

[0037] The clamping strip 31 is located below the plurality of contacts 22. A plurality of connection terminals 25 are provided on one side of the bent portion 24 away from the connection portion 23. The connection terminals 25 are fisheye-shaped and are used to connect to the printed circuit board for shielding.

[0038] The lower portion of the insulating housing 6 is provided with multiple slots 63 along its length for receiving terminal modules 7. The lower portions of the terminal modules 7 are inserted into these slots 63, and multiple terminal modules 7 are arranged sequentially along the length of the insulating housing 6. The terminal modules 7 comprise an injection-molded body and multiple rows of fisheye terminal blocks 73 disposed within the injection-molded body. Multiple terminal modules 7 are sequentially inserted into the insulating housing 6 to form the connector body 1. In this case, the mating portions 64 are located on the side of the insulating housing 6 away from the fisheye terminal blocks 73.

[0039] The mating portion 64 is provided with a plurality of square engaging slots 62 for connecting to the terminal module 7. The terminal module 7 is provided with a positioning piece 71 that extends into and presses against the upper surface of the engaging slots 62. The positioning piece 71 is a spring-loaded structure that tilts toward the side closest to the insulating housing 6. Slide bars 65 are provided on either side of the engaging slots 62 on the mating portion 64. Between adjacent slide bars 65, a slide groove 66 is formed to limit the left and right position of the terminal module 7. The bottom of the slide groove 66 is connected to the slot 63. The terminal module 7 is provided with a slide post 72 that mates with the slide groove 66. Both the puncturing spring and the spring structures are well known to those skilled in the art and will not be described in detail here.

[0040] The top of the chute 66 also has a square retaining groove, and the top of the slide post 72 has a protrusion that mates with the retaining groove. When installing the terminal module 7, the slide post 72 slides along the chute 66 to insert the terminal module 7 into the insulating housing 6 until the lower surface of the protrusion of the slide post 72 contacts the lower surface of the retaining groove, indicating that the terminal module 7 is properly installed.

[0041] The working principle of embodiment 1 of the present invention is:

[0042] Multiple terminal modules 7 are sequentially inserted into the insulating housing 6 to form the connector body 1. Afterward, the shield shell 2 is mounted on the connector body 1 to complete the connector assembly. The shield shell 2 and the connector body 1 are mated via the first mating structure 3, the second mating structure 4, and the third mating structure 5. These structures effectively limit the length, width, and height of the shield shell 2, ensuring a more secure fit and improving the shielding effect.

[0043] Embodiment 2 of the present invention:

[0044] The difference between this embodiment and embodiment 1 is that the second mating structure 4 in embodiment 1 includes a plurality of positioning grooves 42 provided in the middle of the mating portion 64 and a limiting piece 41 provided in the middle of the connecting portion 23. In this embodiment, the second mating structure is: a groove is provided on the connecting portion, and a corresponding protrusion structure is provided on the mating portion for mating.

[0045] Embodiment 3 of the present invention:

[0046] The difference between this embodiment and embodiment 1 is that the fixing protrusion 51 in embodiment 1 is a puncturing protrusion structure. In this embodiment, the fixing protrusion is a rectangular parallelepiped structure, and the two side surfaces in the width direction of the through slot respectively match the corresponding two side surfaces of the fixing protrusion.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A connector with a shielding shell, comprising a connector body (1) of a square structure, wherein the connector body (1) comprises an insulating shell (6) and a plurality of terminal modules (7) arranged in the insulating shell (6), characterized in that: The connector body (1) is connected to a shielding shell (2) via a mating assembly, the shielding shell (2) comprising a horizontal bending portion (24) and a vertical connecting portion (23), the bending portion (24) being in contact with the upper surfaces of a plurality of terminal modules (7), and the connecting portion (23) being in contact with a side surface of the insulating shell (6); The mating assembly comprises a first mating structure (3), a second mating structure (4) for limiting the displacement of the shielding shell (2) in the height direction, and a third mating structure (5) for limiting the displacement of the shielding shell (2) in the width direction, wherein the first mating structure (3) comprises a clamping strip (31) provided at the bottom of the connecting portion (23) and a clamping slot (33) provided at the bottom of the insulating shell (6) for inserting the clamping strip (31), the clamping strip (31) being provided with at least one limiting slot (32), the clamping slot (33) being provided with at least one limiting protrusion (34) matching with the limiting slot (32), the limiting slot (32) matching with the limiting protrusion (34) being used to limit the displacement of the shielding shell (2) in the length direction; The side surface of the insulating shell (6) in contact with the connecting portion (23) is a matching portion (64), and the second matching structure (4) includes at least one positioning groove (42) provided on the matching portion (64) and a limiting piece (41) provided on the connecting portion (23) corresponding to the position of the positioning groove (42), and the limiting piece (41) is used to extend into and press against the positioning groove (42); At least one connection terminal (25) for connecting to a printed circuit board is provided on one side of the bent portion (24) away from the connection portion (23).

2. The connector with a shielding shell according to claim 1, characterized in that: The third matching structure (5) comprises a fixing protrusion (51) provided on a side of the bending portion (24) in contact with the terminal module (7) and a matching through-slot (52) provided on the upper surface of the terminal module (7), wherein two side surfaces in the width direction of the matching through-slot (52) respectively match the corresponding two side surfaces of the fixing protrusion (51).

3. The connector with a shielding shell according to claim 1, characterized in that: Guide columns (61) are provided at the bottom positions of both sides of the upper width direction of the insulating shell (6), and the clamping slots (33) are located on both sides of the guide columns (61) in the length direction of the upper width direction of the insulating shell (6).

4. The connector with a shielding shell according to claim 3, characterized in that: The connecting portion (23) is provided with an avoidance groove (21) for avoiding the guide column (61).

5. The connector with a shielding shell according to claim 1, characterized in that: The lower portion of the insulating housing (6) is provided with a plurality of slots (63) along its length for plugging in the terminal modules (7), and the lower portion of the terminal modules (7) is plugged into the slots (63).

6. The connector with a shielding shell according to claim 5, characterized in that: The matching portion (64) is provided with a plurality of engaging slots (62) for connecting to the terminal module (7), and the terminal module (7) is provided with a positioning piece (71) extending into and pressing against the upper surface of the engaging slot (62).

7. The connector with a shielding shell according to claim 6, characterized in that: Slide bars (65) are provided on both sides of the engaging groove (62) on the matching portion (64), and a slide groove (66) for limiting the position of the terminal module (7) is formed between two adjacent slide bars (65). The bottom of the slide groove (66) is connected to the slot (63), and a slide column (72) that matches the slide groove (66) is provided on the terminal module (7).

8. The connector with a shielding shell according to any one of claims 1 to 7, characterized in that: A contact piece (22) is provided at the bottom of the connecting portion (23), and the contact piece (22) is used to contact a grounding pin (81). The grounding pin (81) is provided in a male connector (8) that is matched with the connector with the shielding shell.

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