A shielded common ground shell and a connector using the same

Abstract

The present invention relates to the field of electrical connectors, and in particular to a shielded common ground shell and a connector using the same. The shielded common ground shell includes an insulating member having a channel provided thereon, the front end of the channel being used for plugging into an adapter connector, the rear end of the channel extending to a retaining wall, the retaining wall being provided with a grounding pin through-hole for a grounding pin to pass through, at least one common ground shielding member provided in the retaining wall, each common ground shielding member having at least two contact portions extending into or at the edges of different grounding pin through-holes, the contact portions being used for electrically conductive contact with a grounding pin inserted into the corresponding grounding pin through-hole. Since the common ground shielding member is installed on the retaining wall within the channel, the installation structure of the common ground shielding member will be more reliable, thereby solving the problem of the common ground shielding member of the connector being easily detached and having poor contact with the grounding pin.

Description

Technical Field

[0001] The present invention relates to the field of electrical connectors, and in particular to a shielded common ground shell and a connector using the shell. Background Art

[0002] In high-speed connectors, in order to suppress crosstalk between differential pairs used to transmit signals, ground pins need to be set on both sides of the differential pairs. Usually, the ground pins also need to be connected to a common ground to suppress signal crosstalk. In the prior art, the ground pins are connected to a common ground through a shielding member provided outside the connector housing. Due to the many interference factors outside the housing, it is easy for the shielding member to fall off and poor contact to occur. Summary of the Invention

[0003] The object of the present invention is to provide a shielded common ground housing to solve the problem that the common ground shielding piece of the connector is easy to fall off and has poor contact with the ground pin.

[0004] At the same time, the present invention also aims to provide a connector using the above-mentioned shielded common ground shell.

[0005] In order to solve the above problems, the shielded common ground shell of the present invention adopts the following technical solution: a shielded common ground shell, including an insulating part, a channel is provided on the insulating part, the front end of the channel is used to be plugged into the adapter connector, and the rear end of the channel extends to a retaining wall, the retaining wall is provided with a grounding pin through-hole for allowing the grounding pin to pass through, and at least one common ground shielding part is provided in the retaining wall, each common ground shielding part has at least two contact portions extending into different grounding pin through-holes or at the edge of the mouth, and the contact portions are used to be in conductive contact with the grounding pin inserted into the corresponding grounding pin through-hole.

[0006] Beneficial effect: The shielded common ground shell of the present invention is provided with a common ground shielding part on the retaining wall in its channel, and each common ground shielding part has at least two contact parts extending into different grounding pin through-holes or at the edge of the mouth. When the grounding pin is installed to the corresponding grounding pin through-hole, it will automatically contact and conduct with the corresponding contact part. Therefore, each common ground shielding part can realize the common ground shielding of at least one group of grounding pins. Since it is installed on the retaining wall in the channel, the installation structure of the common ground shielding part will be more reliable, thereby solving the problem that the common ground shielding part of the connector is easy to fall off and has poor contact with the grounding pin.

[0007] Furthermore, there is only one common ground shielding member, which has a contact portion corresponding to each ground pin through-hole; or there are two or more common ground shielding members, each of which is conductively connected. When there is only one common ground shielding member, and it has a contact portion corresponding to each ground pin through-hole, only one common ground shielding member is required to achieve common ground shielding for all ground pins, which is convenient for installation. When there are two or more common ground shielding members, each of which is conductively connected, they can also achieve common ground shielding for all ground pins.

[0008] Furthermore, the retaining wall is provided with a groove for arranging the common ground shield. An extension channel is provided between the groove wall and the corresponding ground pin through-hole of the common ground shield, allowing the contact portion of the common ground shield to extend to the corresponding ground pin through-hole. The groove facilitates the arrangement of the common ground shield, and the extension channel enables embedded installation of various parts of the common ground shield, further ensuring the reliability of the common ground shield installation.

[0009] Furthermore, the grounding pin holes are provided on both sides of the groove, and the extension channels are provided on both sides of the groove wall. When the extension channels are provided on both sides of the groove wall, a fishbone-shaped common ground shielding member can be used, so that two rows of grounding pins can share the main body of the common ground shielding member, simplifying the structure of the housing.

[0010] Furthermore, the extension channel is formed by a notch on the groove wall, which enables the common ground shielding component to be embedded from the front (the end close to the channel plug end) to the rear, thereby reducing the difficulty of installing the common ground shielding component.

[0011] Furthermore, the common ground shielding member is formed by a shielding net embedded in the groove. The shielding net can be prefabricated separately on corresponding equipment, which is convenient for manufacturing, thereby improving the production efficiency of the housing.

[0012] Furthermore, an end portion of the shielding net is provided with an extension portion extending to a side wall of the channel adjacent thereto, and the extension portion covers an edge of a corresponding end of the notch of the groove.

[0013] Furthermore, the common ground shielding component is pre-embedded in the insulating component when the insulating component is formed. The pre-embedded common ground shielding component will be more tightly combined with the insulating component to prevent it from falling off.

[0014] Furthermore, the contact portion of the common ground shielding member is an elastic contact portion, which can form a pre-tightening force between the elastic contact portion and the grounding pin, thereby ensuring contact reliability.

[0015] The connector of the present invention adopts the following technical solution: the connector includes a shell and a grounding pin, the shell includes an insulating member, the insulating member is provided with a channel, the front end of the channel is used to be plugged into the adapter connector, and the rear end of the channel extends to a retaining wall, the retaining wall is provided with a grounding pin through-hole for allowing the grounding pin to pass through, at least one common ground shielding member is provided in the retaining wall, each common ground shielding member has at least two contact portions extending into different grounding pin through-holes or at the edges, the contact portions being used to make conductive contact with the grounding pin inserted into the corresponding grounding pin through-hole.

[0016] Beneficial effect: In the connector of the present invention, a common ground shielding member is provided on the retaining wall in the channel of the shell, and each common ground shielding member has at least two contact portions extending into different grounding pin through-holes or at the edge of the mouth. When the grounding pin is installed in the corresponding grounding pin through-hole, it will automatically contact and conduct with the corresponding contact portion. Therefore, each common ground shielding member can realize the common ground shielding of at least one group of grounding pins. Since it is installed on the retaining wall in the channel, the installation structure of the common ground shielding member will be more reliable, thereby solving the problem that the common ground shielding member of the connector is easy to fall off and has poor contact with the grounding pin.

[0017] Furthermore, there is only one common ground shielding member, which has a contact portion corresponding to each ground pin through-hole; or there are two or more common ground shielding members, each of which is conductively connected. When there is only one common ground shielding member, and it has a contact portion corresponding to each ground pin through-hole, only one common ground shielding member is required to achieve common ground shielding for all ground pins, which is convenient for installation. When there are two or more common ground shielding members, each of which is conductively connected, they can also achieve common ground shielding for all ground pins.

[0018] Furthermore, the retaining wall is provided with a groove for arranging the common ground shield. An extension channel is provided between the groove wall and the corresponding ground pin through-hole of the common ground shield, allowing the contact portion of the common ground shield to extend to the corresponding ground pin through-hole. The groove facilitates the arrangement of the common ground shield, and the extension channel enables embedded installation of various parts of the common ground shield, further ensuring the reliability of the common ground shield installation.

[0019] Furthermore, the grounding pin holes are provided on both sides of the groove, and the extension channels are provided on both sides of the groove wall. When the extension channels are provided on both sides of the groove wall, a fishbone-shaped common ground shielding member can be used, so that two rows of grounding pins can share the main body of the common ground shielding member, simplifying the structure of the housing.

[0020] Furthermore, the extension channel is formed by a notch on the groove wall, which enables the common ground shielding component to be embedded from the front (the end close to the channel plug end) to the rear, thereby reducing the difficulty of installing the common ground shielding component.

[0021] Furthermore, the common ground shielding member is formed by a shielding net embedded in the groove. The shielding net can be prefabricated separately on corresponding equipment, which is convenient for manufacturing, thereby improving the production efficiency of the housing.

[0022] Furthermore, an end portion of the shielding net is provided with an extension portion extending to a side wall of the channel adjacent thereto, and the extension portion covers an edge of a corresponding end of the notch of the groove.

[0023] Furthermore, the common ground shielding component is pre-embedded in the insulating component when the insulating component is formed. The pre-embedded common ground shielding component will be more tightly combined with the insulating component to prevent it from falling off.

[0024] Furthermore, the contact portion of the common ground shielding member is an elastic contact portion, which can form a pre-tightening force between the elastic contact portion and the grounding pin, thereby ensuring contact reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a perspective view of Example 1 of the shielded common ground housing of the present invention;

[0026] Figure 2 is a cross-sectional perspective view of Example 1 of the shielded common ground housing of the present invention;

[0027] Figure 3 1 is a rear view of the connector embodiment 1 of the present invention, and is also a diagram of the shielded common ground housing embodiment 1 of the present invention in use;

[0028] Figure 4 It is a cross-sectional perspective view of the connector embodiment 1 of the present invention.

[0029] In the figure: 11, insulating member; 12, insulator; 13, retaining wall; 131, rib; 14, differential pair; 15, grounding pin; 16, differential pair through-hole; 17, grounding pin through-hole; 18, common ground shielding member; 181, main body; 182, contact portion; 183, extension portion. DETAILED DESCRIPTION

[0030] In order to make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present invention and are not intended to limit the present invention. That is, the embodiments described herein are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein may be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely intended to represent selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0032] It should be noted that relational terms such as "first" and "second" that may appear are used only 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, terms such as "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article or device. In the absence of further limitations, an element defined by a sentence such as "including a..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0033] The features and performance of the present invention are further described in detail below with reference to the embodiments.

[0034] Example 1 of the shielded common ground housing of the present invention:

[0035] The shielded common ground shell can be used in a differential connector to install differential pairs and ground pins and shield the differential pairs to suppress signal crosstalk.

[0036] like Figure 1-4 As shown, the main structure of the shielded common ground housing is an insulating member 11. In this embodiment, the shielded common ground housing is a rectangular connector housing. A channel is provided at the front end of the insulating member 11. The channel has a rectangular cross-section. The front end of the channel is used to insert the adapter connector to complete the circuit conduction, while the rear end is used to mount the insulator 12 of the terminal component. The rear end of the channel extends to a retaining wall 13 within the insulating member 11. The retaining wall 13 is used to mount the differential pair 14 and the grounding pins 15 on both sides of the differential pair. The retaining wall 13 is provided with a differential pair through-hole 16 and a grounding pin through-hole 17. The differential pair through-hole 16 allows the differential pair 14 of the terminal component to pass through, and the grounding pin through-hole 17 allows the grounding pin 15 of the terminal component to pass through.

[0037] like Figure 1 、 2As shown, in this embodiment, two rows of differential pair through-holes 16 and ground pin through-holes 17 are provided on the retaining wall 13, thereby forming a rib 131 on the retaining wall 13 between the two rows of differential pair through-holes 16 and ground pin through-holes 17. A groove is provided along the length of the rib 131, and notches are provided on the groove walls on both sides of the groove corresponding to the ground pin through-holes, forming corresponding extension channels. A common ground shielding member 18 is provided in the groove. In this embodiment, the common ground shielding member 18 is in a fishbone shape, forming a shielding mesh structure, having a main body portion 181 embedded in the groove and a contact portion 182 extending from the corresponding notch to the corresponding grounding pin through-hole 17. The contact portion 182 is used to conductively contact the grounding pin 15 inserted into the corresponding grounding pin through-hole. It should be noted here that the contact portion 182 extending into the corresponding grounding pin through-hole 17 specifically refers to the contact portion 182 extending to a position where it can contact the grounding pin 15 in the corresponding grounding pin through-hole 17, and does not specifically refer to the contact portion 182 passing through the inner wall of the corresponding grounding pin through-hole. For example, in some cases, when the grounding pin has a protruding structure, and the protruding structure can enter the corresponding extension channel and contact the corresponding contact portion, this situation should also fall within the meaning of the expression "the contact portion extends into the corresponding grounding pin through-hole".

[0038] thereby Figure 2 It can be seen that in this embodiment, a bent structure is provided at the end of the contact portion 182. On the one hand, this structure enables the contact position of the contact portion 182 to have a certain elasticity so as to be able to reliably contact the corresponding grounding pin 15. On the other hand, it can also avoid scratching the grounding pin 15 when it passes through the corresponding grounding pin perforation.

[0039] In addition, from Figure 1 and Figure 2 It can be seen that in this embodiment, the end of the main body 181 is provided with an extension portion 183 extending to the side wall adjacent to the channel, and the extension portion 183 covers the edge of the corresponding end of the groove notch, that is, the extension portion covers the end of the above-mentioned rib 131.

[0040] like Figure 3 、 4 As shown, when using this shielded common ground housing, the terminal component can be installed in the channel of the insulating member 11. The retaining wall 13 can limit the insulator 12 of the terminal component. During the installation of the terminal component in the channel, the differential pair 14 and grounding pin 15 thereon will pass through the corresponding differential pair through-holes 16 and grounding pin through-holes 17. The grounding pin 15 will contact the corresponding contact portion 182 on the common ground shielding component, thereby achieving common ground with other grounding pins 15. Because the common ground shielding component is installed in the insulating member 11 and is doubly limited by the retaining wall 13 and the insulator 12, it is securely fixed and can maintain stable contact with the grounding pin.

[0041] Embodiment 2 of the shielded common ground housing of the present invention:

[0042] In Embodiment 1 of the shielded common ground housing of the present invention, there is only one common ground shielding member, which has a contact portion corresponding to each ground pin through-hole. In this embodiment, there are two or more common ground shielding members, each of which is conductively connected. Of course, in other embodiments, the common ground shielding members may be partially conductively connected to each other, or it is sufficient to ensure that each common ground shielding member has contact portions corresponding to two or more ground pin through-holes, without being connected to each other. In this case, since common ground shielding can be achieved for at least one group of ground pins, it can also provide a certain degree of crosstalk prevention.

[0043] Embodiment 3 of the shielded common ground housing of the present invention:

[0044] In Example 1 of the shielded, ground-sharing housing of the present invention, an extension channel is provided on the groove wall, through which the contact portion of the ground-sharing component extends into the corresponding ground pin perforation. In this embodiment, the extension channel is omitted from the groove wall, and the contact portion extends directly from the edge of the groove to the edge of the contact perforation.

[0045] Example 4 of the shielded common ground housing of the present invention:

[0046] In the first embodiment of the shielded common ground housing of the present invention, the common ground shielding member is composed of a fishbone-shaped shielding mesh embedded in the groove. In this embodiment, the insulating member is injection molded, and the common ground shielding member is pre-embedded in the insulating member during molding.

[0047] Embodiments of the connector of the present invention:

[0048] The connector includes a housing and at least one terminal component arranged in the housing. The housing is the shielded common ground housing of the present invention and will not be described in detail here.

Claims

1. A shielded common ground housing, comprising an insulating member, wherein the insulating member is provided with a channel, the front end of the channel is used to be plugged into an adapter connector, and the rear end of the channel extends to a retaining wall, wherein the retaining wall is provided with a grounding pin through-hole for passing a grounding pin, characterized in that: At least one common ground shielding member is provided in the retaining wall, and each common ground shielding member has at least two contact portions extending into different grounding pin through-holes or at the edges, and the contact portions are used to make conductive contact with the grounding pins inserted into the corresponding grounding pin through-holes. The retaining wall is provided with a groove for arranging the common ground shielding member, and an extension channel is provided between the groove wall and the grounding pin through-hole corresponding to the common ground shielding member, so that the contact portion of the common ground shielding member extends to the corresponding grounding pin through-hole. The retaining wall is provided with an insulator on the side where the common ground shielding member is provided, which is used to limit the common ground shielding member.

2. The shielded common ground shell according to claim 1, characterized in that: There is only one common ground shielding component, which has a contact portion corresponding to each ground pin through-hole; or there are more than two common ground shielding components, and each common ground shielding component is conductively connected.

3. The shielded common ground housing according to claim 1 or 2, characterized in that: The grounding pin through holes are provided on both sides of the groove, and the extension channels are provided on the groove walls on both sides of the groove.

4. The shielded common ground housing according to claim 1 or 2, characterized in that: The extension channel is formed by a notch on the groove wall.

5. The shielded common ground shell according to claim 4, characterized in that: The common ground shielding component is composed of a shielding net embedded in the groove.

6. The shielded common ground shell according to claim 5, characterized in that: An end portion of the shielding net is provided with an extension portion extending to a side wall of the channel adjacent thereto, and the extension portion covers an edge of a corresponding end of the notch of the groove.

7. The shielded common ground housing according to claim 1 or 2, characterized in that: The common ground shielding component is pre-buried in the insulating component when the insulating component is formed.

8. The shielded common ground housing according to claim 1 or 2, characterized in that: The contact portion of the common ground shielding element is an elastic contact portion.

9. A connector comprising a housing and a ground pin, characterized in that: The shell is the shielded common ground shell according to any one of claims 1 to 8.

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