CN211182702U - Connector housing - Google Patents

Abstract

A connector housing, comprising: a receiving space surrounded by four walls and forming an insertion port; the four walls include first and second walls extending in first and second planes, respectively, perpendicular to each other and joined to each other at corners. The first wall is provided at an edge near the insertion port with at least one first detent, the edge of the second wall is provided with at least one first detent tooth extending in the first plane by vertical bending and respectively engaging into the first detent, the first detent tooth and the first detent have a first locking feature adapted to prevent the first detent tooth from disengaging from the first detent in a direction perpendicular to the second plane. The adjacent edges of the adjacent two walls of the connector housing are closely joined to each other, so that it is possible to effectively prevent a gap from occurring at a corner of the connector housing near the insertion port.

Description

Connector housing

Technical Field

The present invention relates to a connector housing, and more particularly to a connector housing for an electrical connector.

Background

In the prior art, connectors used in communication systems, such as optical module connectors, have been increasingly transmitting at higher rates. For these high-speed connectors, in order to ensure that the transmission signals are not interfered by external electromagnetic interference, it is necessary to provide the high-speed connectors with connector housings. Typically, these connector housings are assembled from sheet metal components.

Generally, a connector housing has a substantially square shape with at least two adjacent side walls (a bottom wall and a side wall) joined to each other at corners, and a port adapted for insertion of an electronic device such as an optical module is formed at one end of the connector housing. A ring of electromagnetic shielding sheets is installed on the outer side of the connector housing near the port, and due to the influence of the electromagnetic shielding sheets, the bottom wall and the side wall within the range of the electromagnetic shielding sheets are merely lapped together and do not resist enough holding force to resist the action of external force. Thus, when the optical module is inserted into the connector housing through the port, the bottom wall and/or the side wall located in the entire range may be warped to be outwardly spread, and a gap may occur at a corner position near the port. Such a gap may cause a serious electromagnetic leakage, adversely affecting the electromagnetic shielding performance of the connector housing.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to solve at least one of the above problems and drawbacks existing in the prior art.

The utility model provides a connector housing, two adjacent walls of connector housing can link together closely each other to prevent effectively that the gap from appearing in near the corner of the insertion port of connector housing.

According to an aspect of the present invention, there is provided a connector housing, comprising: a receiving space surrounded by four walls and forming an insertion port; the four walls include first and second walls extending in first and second planes, respectively, perpendicular to each other and joined to each other at corners. The first wall is provided at an edge near the insertion port with at least one first detent, the edge of the second wall is provided with at least one first detent tooth extending in the first plane by vertical bending and respectively engaging into the first detent, the first detent tooth and the first detent have a first locking feature adapted to prevent the first detent tooth from disengaging from the first detent in a direction perpendicular to the second plane.

According to an embodiment of the invention, the first locking feature comprises: at least a first protrusion formed on one of the first positioning tooth and the first positioning groove and protruding in a length direction of the connector housing; and at least one first recess formed on the other of the first positioning tooth and the first positioning groove and configured to receive the first protrusion.

According to the utility model discloses an embodiment, first positioning groove forms to the wedge groove, first positioning tooth forms to the wedge tooth.

According to the utility model discloses an embodiment, first positioning groove forms to the dovetail, first positioning tooth becomes the dovetail tooth.

According to an embodiment of the invention, the second wall is provided with at least one second positioning groove near the edge of the insertion port, the edge of the first wall is provided with second positioning teeth extending in the second plane and engaging into the second positioning grooves by vertical bending, the second positioning teeth and second positioning grooves having a second locking feature adapted to prevent the second positioning teeth from disengaging from the second positioning grooves in a direction perpendicular to the first plane.

According to an embodiment of the invention, the second locking feature comprises: a second protrusion formed on one of the second positioning tooth and the second positioning groove and protruding in a length direction of the connector housing; and a second recess formed on the other of the second positioning tooth and the second positioning groove and configured to receive the second protrusion.

According to an embodiment of the invention, the second positioning groove is formed as a wedge-shaped groove, the second positioning teeth being formed as wedge-shaped teeth.

According to the utility model discloses an embodiment, the second constant head tank forms to the dovetail, the second constant head tank tooth becomes the dovetail tooth.

According to an embodiment of the present invention, the connector housing includes two first positioning grooves, and the second positioning teeth are fitted into the second positioning grooves after extending from the first wall between the two first positioning grooves and vertically bending.

According to an embodiment of the present invention, the minimum distance between any one of the first positioning groove, the first positioning tooth, the second positioning groove, and the second positioning tooth and the edge of the insertion port is not more than 2 mm.

According to an embodiment of the utility model, the connector housing further includes the electromagnetic shield shell fragment, the electromagnetic shield shell fragment is installed be close to insert on the four walls of port.

According to an embodiment of the utility model, electromagnetic shield shell fragment is riveted through the riveting part and is close to insert on the four walls of port.

In the aforementioned various exemplary embodiments according to the present invention, the adjacent edges of the two adjacent walls of the connector housing are closely connected to each other, so that the occurrence of a gap at the corner of the connector housing near the insertion port can be effectively prevented, and therefore, the electromagnetic shielding effect and the signal transmission quality of the connector housing are improved.

Other objects and advantages of the present invention will become apparent from the following description of the invention, which is made with reference to the accompanying drawings, and can help to provide a thorough understanding of the present invention.

Drawings

Fig. 1 shows a schematic perspective view of a connector housing according to an exemplary embodiment of the present invention;

fig. 2 shows a partially enlarged schematic view of the connector housing shown in fig. 1 at one corner;

fig. 3 is a partially enlarged schematic view showing the vicinity of an insertion port of the connector housing shown in fig. 1;

fig. 4 is the top view of fig. 3, in which the electromagnetic shielding elastic sheet is not installed;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is an enlarged schematic view of a modification based on FIG. 4;

fig. 7 shows a side view of fig. 3 with the electromagnetic shielding dome uninstalled;

FIG. 8 is an enlarged view of portion B of FIG. 7;

FIG. 9 is an enlarged schematic view of a modification based on FIG. 8;

fig. 10 shows a schematic plan view of a connector housing according to an exemplary embodiment of the present invention with four walls in the vicinity of the insertion port expanded; and

fig. 11 shows an enlarged schematic view of another modification based on fig. 8.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept and should not be construed as limiting the invention.

Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.

According to a general technical concept of the present invention, there is provided a connector housing including a receiving space which is defined by four walls and forms an insertion port. The four walls include first and second walls extending in first and second planes, respectively, perpendicular to each other and joined to each other at corners. The first wall is provided at an edge near the insertion port with at least one first detent, the edge of the second wall is provided with at least one first detent tooth extending in the first plane by vertical bending and respectively engaging into the first detent, the first detent tooth and the first detent have a first locking feature adapted to prevent the first detent tooth from disengaging from the first detent in a direction perpendicular to the second plane.

Fig. 1 shows a schematic perspective view of a connector housing according to an exemplary embodiment of the present invention; fig. 2 shows a partially enlarged schematic view of the connector housing shown in fig. 1 at one corner.

As shown in fig. 1 and 2, according to an exemplary embodiment of the present invention, the connector housing 100 includes a receiving space surrounded by four walls 1, 2, 3, 4 and forming an insertion port 5. The plug-in port 5 is suitable for plugging in optical module connectors and electrical connectors. The four walls include a first wall 1 (e.g., a bottom wall) and a second wall 2 (e.g., a side wall) that extend in a first plane (e.g., a horizontal plane) and a second plane (e.g., a vertical plane) perpendicular to each other, respectively, and join each other at corners. It will be appreciated that the first and second walls may be any two adjacent walls and joined to each other at the corners. At the position of the first wall 1 at the insertion port 5, there is provided a holding spring 13 for elastically abutting against the inserted optical module connector, electrical connector. Pins 6 for fixing the connector housing to a circuit board are provided on the two side walls 2 and 4, respectively.

Fig. 3 is a partially enlarged schematic view showing the vicinity of an insertion port of the connector housing shown in fig. 1; fig. 4 is the top view of fig. 3, in which the electromagnetic shielding elastic sheet is not installed; fig. 5 is an enlarged view of a portion a of fig. 4.

As shown in fig. 1-5, the first wall 1 (e.g. the bottom wall) is provided with at least one first positioning groove 11 at the edge near the insertion port 5, the edge of the second wall 2 is provided with at least one first positioning tooth 21 extending in the first plane by vertical bending and respectively engaging into the first positioning groove 11, the first positioning tooth 21 and the first positioning groove 11 having a first locking feature adapted to prevent the first positioning tooth 21 from disengaging from the first positioning groove 11 in a direction perpendicular to the second plane. In this way, by the combination of the first positioning tooth 21 and the first positioning groove 11, the second wall 2 is prevented from coming out of the first positioning groove 11 in a direction perpendicular to the second plane, i.e., the second wall 2 is prevented from moving in a lateral direction, and in particular, the second wall 2 is prevented from moving outward in a lateral direction.

Fig. 7 shows a side view of fig. 3 with the electromagnetic shielding dome uninstalled; fig. 8 is an enlarged view of portion B of fig. 7.

In an exemplary embodiment, as shown in fig. 1-3, 6 and 7, the second wall (e.g., side wall) 2 is provided with at least one second detent 22 at an edge near the insertion port 5, the edge of the first wall 1 is provided with a second detent tooth 12 extending in the second plane by a perpendicular bend and engaging into the second detent 22, the second detent tooth 12 and second detent 22 having a second locking feature adapted to prevent the second detent tooth 12 from disengaging the second detent 22 in a direction perpendicular to the first plane. In this way, by the combination of the second positioning tooth 12 and the second positioning groove 22, the first wall 1 is prevented from coming off the first positioning groove 11 in a direction perpendicular to the second plane, i.e., the first wall 1 is prevented from moving in the height direction, and in particular, the first wall 1 is prevented from moving outward in the height direction.

Due to the provision of the first locking feature preventing the first wall 1 from moving outwards in the height direction and the second locking feature preventing the second wall 2 from moving outwards in the lateral direction, the first wall 1 and the second wall 2 are tightly connected together at the corner, and it is possible to avoid that the connector housing is pressed by external forces, such as when the insertion port is inserted into an electronic or optical module, and a gap occurs at the corner.

In one exemplary embodiment, as shown in fig. 1-5, the first locking feature comprises: a first protrusion 211 and a first recess 111, the first protrusion 211 being formed on the first positioning tooth 21 and protruding in a longitudinal direction (left-right direction of fig. 5) of the connector housing 100. The first recess 111 is formed on the first seating groove 11 and is configured to receive the first protrusion 211. Since the length direction is perpendicular to the lateral direction, the second wall 2 can be prevented from moving outward in the lateral direction.

In an exemplary embodiment, as shown in fig. 2, 4 and 5, the first positioning slot 11 is formed as a wedge-shaped slot (or referred to as a trapezoidal slot), and the first positioning tooth 21 is formed as a wedge-shaped tooth (or referred to as a trapezoidal tooth). In this way, adjacent first and second walls 1, 2 can be tightly connected to each other by means of wedge-shaped teeth and wedge-shaped slots.

Fig. 6 shows an enlarged schematic view of a modification based on fig. 4.

Referring to fig. 6, in an alternative embodiment, the first locking feature comprises: a first protrusion 112 and a first recess 212, the first protrusion 112 being formed on the first positioning groove 11 and protruding in the longitudinal direction (the left-right direction in fig. 8) of the connector housing 100. The first recess 212 is formed on the first positioning tooth 21 and is configured to receive the first protrusion 112. Since the length direction is perpendicular to the lateral direction, the second wall 2 can be prevented from moving outward in the lateral direction.

In an exemplary embodiment, as shown in fig. 2, 7 and 8, the second locking feature comprises: a second protrusion 121 and a second recess 221, the second protrusion 121 being formed on the second positioning tooth 12 and protruding in a length direction of the connector housing 100; the second recess 221 is formed on the second positioning groove 22 and is configured to receive the second protrusion 121. Since the length direction is perpendicular to the height direction, the second wall 2 can be prevented from moving outward (downward) in the height direction.

In an exemplary embodiment, as shown in fig. 2, 7 and 8, the second positioning slot 22 is formed as a wedge-shaped slot (or a trapezoidal slot), and the second positioning tooth 12 is formed as a wedge-shaped tooth (or a trapezoidal tooth). In this way, adjacent first and second walls 1, 2 can be tightly connected to each other by means of wedge-shaped teeth and wedge-shaped slots.

The minimum distance between any one of the first positioning groove 11, the first positioning tooth 21, the second positioning tooth 22 and the second positioning tooth 12 and the edge of the insertion port 5 is not more than 2 mm. In this way, the coupling force of the first wall and the second wall in the vicinity of the insertion port can be increased.

Fig. 10 shows a schematic plan view of a connector housing according to an exemplary embodiment of the present invention with four walls in the vicinity of the insertion port expanded.

In one exemplary embodiment, referring to fig. 2 and 10, during the manufacture of the connector housing 100, a metal sheet made of a single stainless steel, copper or alloy is formed into the connector housing 100 through a stamping, bending and shearing process. Firstly, stamping or cutting a model of a first wall 1, a second wall 2, a third wall 3 and a fourth wall 4 on a metal sheet, and holding elastic sheets 13; bending the first positioning tooth 21 of the second wall 2 perpendicularly and bending the metal sheet to form a substantially rectangular parallelepiped profile; thereafter, the bent first positioning tooth 21 is pressed into the corresponding first positioning groove 11 from the inside of the first wall 1; the second positioning tooth 12 is then bent vertically and from the outside of the second wall 2 into the corresponding second positioning slot 22 of the second wall 2, so that the abutment between the first wall 1 and the second wall 2 is achieved. In this way, the abutment of the first wall 1 and the second wall 2 can be achieved, preventing the occurrence of a slight gap at the corner where the first wall and the second wall abut.

In another manufacturing process, a mold of the first wall 1, the second wall 2, the third wall 3 and the fourth wall 4 and the holding spring piece 13 are firstly punched or cut on the metal sheet; bending the second positioning tooth 12 of the first wall 1 perpendicularly and bending the metal sheet to form a substantially rectangular parallelepiped profile; the bent second positioning tooth 12 is then pressed from the inside of the second wall 2 into the corresponding second positioning slot 22; the first positioning tooth 21 is then bent vertically and enters the first positioning slot 11 of the corresponding first arm 1 from the outside of the first wall 1. In this way, the abutment of the first wall 1 and the second wall 2 can be achieved, preventing the occurrence of a slight gap at the corner where the first wall and the second wall abut.

Fig. 9 shows an enlarged schematic view of a modification based on fig. 8.

Referring to fig. 9, in an alternative embodiment, the second locking feature comprises: a second protrusion 222 and a second recess 122, the second protrusion 222 being formed on the second positioning groove 22 and protruding in the length direction (left-right direction of fig. 9) of the connector housing 100. The second recess 122 is formed on the second positioning tooth 12 and is configured to receive the second protrusion 222. Since the length direction is perpendicular to the lateral direction, the first wall 1 can be prevented from moving outward (downward) in the height direction.

Fig. 11 shows an enlarged schematic view of another modification based on fig. 8.

In an exemplary embodiment, as shown in fig. 11, the second detent 22 'is formed as a dovetail slot and the second detent tooth 12' is formed as a dovetail tooth. Similarly, the first positioning groove 11 is formed as a dovetail groove, and the first positioning tooth 21 is formed as a dovetail tooth. In this way, the adjacent edges of the first and second walls 1, 2 can be tightly connected to each other by means of dovetail teeth and dovetail grooves.

In an exemplary embodiment, as shown in fig. 2, 5 and 10, the connector housing 100 includes two of the first positioning grooves 11, the second positioning teeth 12 are fitted into the second positioning grooves 22 after extending from the first wall 1 between the two first positioning grooves 11 and being vertically bent, and at the same time, two first positioning teeth 21 are fitted into the first positioning grooves 11 after extending from the second wall 2 and being vertically bent. Thus, the first positioning grooves 11 and the second positioning teeth 12 provided on the first wall 1 are alternately arranged, and the second positioning grooves 22 and the first positioning teeth 21 provided on the second wall 2 are alternately arranged.

In an exemplary embodiment, as shown in fig. 1 to 3, the connector housing 100 further includes electromagnetic shielding clips 7, and the electromagnetic shielding clips 7 are mounted on the four walls near the insertion port 5. Further, the electromagnetic shield fragment is riveted to four walls near the insertion port 5 by a riveting member 71.

In the foregoing embodiments, the embodiments for tightly connecting the first wall and the second wall of the connector housing together have been described taking the bottom wall and the side wall as an example, however, the present invention is not limited to the foregoing embodiments, for example, the first wall and the second wall may be the bottom wall and the side wall, respectively. The aforementioned locking feature may have other shapes and/or sizes as long as it is capable of tightly connecting two adjacent walls of the connector housing together.

According to the utility model discloses connector housing through set up two-way bending's second location tooth and first location tooth on the first wall that is used as the diapire and the second wall that is used as the lateral wall, can realize two-way dovetail tooth or two-way wedge tooth of auto-lock for the first location tooth that sets up on the diapire can prevent lateral wall left and right sides lateral shifting, and sets up the second location tooth that can prevent at the lateral wall that the diapire from reciprocating. Since the positioning teeth and the positioning grooves are spaced from the insertion port by a distance of less than 2 mm, sufficient holding force can be provided. For example, a single insertion port retention force of greater than 10 kilograms has been found to be superior to the 8 kilogram standard required for connector housing design. When the optical module male connector is inserted into the connector shell, no obvious gap is formed in the area near the insertion port, the connector shell is ensured to have excellent electromagnetic shielding performance, and meanwhile, the appearance of the connector shell can meet the requirements of customers.

Furthermore, the connector shell according to the embodiment of the invention has compact structure, and can provide larger holding force than a welding spot near the insertion port, and the product structure is more stable; the connector housing may be applied to a full family of connectors from a single layer single insertion port to a double layer multiple insertion port; the bidirectionally bent second positioning tooth and the first positioning tooth, and the second positioning groove and the first positioning groove matched with the two-way bent second positioning tooth and the first positioning tooth can be realized through a stamping and bending forming process, and can realize automatic assembly in a mould together with an electromagnetic shielding elastic sheet, so that the integrated design and the full-automatic manufacturing process of the connector shell are realized; in addition, the positioning teeth are combined with the positioning grooves, so that a welding process can be omitted, the production efficiency is improved, and the manufacturing cost is reduced.

It will be appreciated by those skilled in the art that the embodiments described above are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle.

Although the present invention has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to exemplify preferred embodiments of the present invention, and should not be construed as limiting the present invention.

Although a few embodiments of the present general inventive concept have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the claims and their equivalents.

It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude a plurality. Additionally, any element numbers of the claims should not be construed as limiting the scope of the invention.

Claims (12)

1. A connector housing, comprising:

a receiving space surrounded by four walls and forming an insertion port;

the four walls include first and second walls extending in first and second planes, respectively, perpendicular to each other and joined to each other at corners,

characterized in that the first wall is provided at an edge near the insertion port with at least one first detent, the edge of the second wall is provided with at least one first detent tooth extending in the first plane by vertical bending and respectively engaging into the first detent, the first detent tooth and the first detent having a first locking feature adapted to prevent the first detent tooth from disengaging from the first detent in a direction perpendicular to the second plane.

2. The connector housing of claim 1, wherein the first locking feature comprises:

at least a first protrusion formed on one of the first positioning tooth and the first positioning groove and protruding in a length direction of the connector housing; and

at least one first recess formed on the other of the first positioning tooth and the first positioning groove and configured to receive the first protrusion.

3. The connector housing according to claim 2, wherein the first detent is formed as a wedge-shaped groove and the first detent is formed as a wedge-shaped tooth.

4. The connector housing according to claim 2, wherein the first detent groove is formed as a dovetail groove, and the first detent tooth is formed as a dovetail tooth.

5. The connector housing according to any of claims 1-4, wherein the second wall is provided with at least one second detent at an edge near the insertion port, the edge of the first wall is provided with a second detent tooth extending in the second plane by a perpendicular bend and being incorporated into the second detent, the second detent tooth and second detent having a second locking feature adapted to prevent the second detent tooth from disengaging the second detent in a direction perpendicular to the first plane.

6. The connector housing of claim 5, wherein the second locking feature comprises:

a second protrusion formed on one of the second positioning tooth and the second positioning groove and protruding in a length direction of the connector housing; and

a second recess formed on the other of the second positioning tooth and the second positioning slot and configured to receive the second protrusion.

7. The connector housing according to claim 6, wherein the second positioning slot is formed as a wedge-shaped slot and the second positioning teeth are formed as wedge-shaped teeth.

8. The connector housing according to claim 6, wherein the second positioning groove is formed as a dovetail groove, and the second positioning teeth are formed as dovetail teeth.

9. The connector housing according to claim 5, comprising two of the first positioning grooves, wherein the second positioning tooth is fitted into the second positioning groove after extending from the first wall between the two first positioning grooves and being vertically bent.

10. The connector housing according to claim 5, wherein a minimum distance between any one of the first positioning groove, the first positioning tooth, the second positioning groove, and the second positioning tooth and an edge of the insertion port is not more than 2 mm.

11. The connector housing according to any one of claims 1 to 4, wherein: the electromagnetic shielding elastic sheet is arranged on the four walls close to the insertion port.

12. The connector housing of claim 11, wherein: the electromagnetic shielding elastic sheet is riveted on the four walls close to the insertion port through riveting components.

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