CROSS-REFERENCE TO RELATED APPLICATION
This application claims the benefit of the filing date under 35 U.S.C. ยง 119(a)-(d) of Chinese Patent Application No. 201610974690.X, filed on Nov. 7, 2016.
FIELD OF THE INVENTION
The present invention relates to an electrical connector and, more particularly, to an electrical connector having good heat dissipation.
BACKGROUND
In a conventional connector for high-speed data transmission, due to an increased speed of data transmission and an application in which a high power optical module is received in the connector, heat dissipation for the connector is vital. However, in the prior art, a large gap is formed between the high power optical module and a housing of the connector when the high power optical module is inserted into an insertion port of the housing of the connector. The large gap is formed due to limitations of an electromagnetic shielding elastic sheet formed on an outside of the high power optical module and an inner positioning structure of the housing of the connector. The high power optical module does not physically contact the housing of the connector, which produces a large thermal resistance and reduces thermal performance of the connector.
In order to distribute the heat generated by the inserted high power optical module to the outside of the housing of the connector, an inwardly projecting resilient boss may be disposed on the housing of the connector. The resilient boss directly and physically contacts the inserted high power optical module. However, in order to ensure reliable physical contact with the inserted high power optical module, the resilient boss has a large amount of interference with the high power optical module. A large insertion force is required when the high power optical module is inserted into the housing, which may not be easily controlled by a user. Further, in order to form the resilient boss on the housing of the connector, it is necessary to form long slits in the housing of the connector, which weaken the electromagnetic shielding of the housing. Additionally, external water vapor or contaminants can easily enter into the housing of the connector through the slits.
SUMMARY
A connector for receiving one or more plug modules according to the invention comprises a housing and a partition wall disposed in the housing and dividing an inner space of the housing into an upper insertion port and a lower insertion port. A first rigid convex member protruding toward an inner space of the upper insertion port is formed on a top wall of the upper insertion port and a second rigid convex member protruding toward an inner space of the lower insertion port is formed on a bottom wall of the lower insertion port. The first rigid convex member physically contacts a first plug module inserted into the upper insertion port and the second rigid convex member physically contacts a second plug module inserted into the lower insertion port.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now be described by way of example with reference to the accompanying Figures, of which:
FIG. 1 is a side perspective view of a connector according to the invention;
FIG. 2 is a front perspective view of the connector of FIG. 1;
FIG. 3 is a bottom perspective view of the connector of FIG. 1;
FIG. 4 is a sectional view of the connector of FIG. 1; and
FIG. 5 is a sectional view of the connector of FIG. 1 with a plug module inserted into an upper insertion port of the connector.
DETAILED DESCRIPTION OF THE EMBODIMENT(S)
Embodiments of the present invention will be described hereinafter in detail with reference to the attached drawings, wherein like reference numerals refer to the like elements. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein; rather, these embodiments are provided so that the disclosure will be thorough and complete and will fully convey the concept of the invention to those skilled in the art.
A connector according to the invention is shown in FIGS. 1-5. The connector comprises a housing 100 and a partition wall 130. The partition wall 130 is disposed in the housing 100 and divides an inner space of the housing 100 into an upper insertion port 101 and a lower insertion port 102.
As shown in FIGS. 1-3, a first rigid convex member 111 protruding toward an inner space of the upper insertion port 101 is formed on a top wall 110 of the upper insertion port 101. A second rigid convex member 121 protruding toward an inner space of the lower insertion port 102 is formed on a bottom wall 120 of the lower insertion port 102. In the shown embodiment, the first rigid convex member 111 is formed by punching the top wall 110 of the upper insertion port 101 and the second rigid convex member 121 is formed by punching the bottom wall 120 of the lower insertion port 102. In an embodiment, a height of the first rigid convex member 111 and the second rigid convex member 121 is 0.1 mm to 0.5 mm. In another embodiment, the height of the first rigid convex member 111 and the second rigid convex member 121 is 0.20 mm to 0.25 mm.
The partition wall 130, as shown in FIGS. 1-5, has an upper partition wall 131 and a lower partition wall 132, the lower partition wall 132 being located below the upper partition wall 131 and spaced apart from the upper partition wall 131 by a predetermined distance. The upper partition wall 131 constitutes a bottom wall of the upper insertion port 101 and the lower partition wall 132 constitutes a top wall of the lower insertion port 102.
As shown in FIGS. 1-5, at least one first elastic sheet 1311 protruding toward the inner space of the upper insertion port 101 is formed on the upper partition wall 131. At least one second elastic sheet 1321 protruding toward the inner space of the lower insertion port 102 is formed on the lower partition wall 132. In the shown embodiment, a plurality of first elastic sheets 1311 is formed on the upper partition wall 131, the plurality of first elastic sheets 1311 being arranged in at least one row in an insertion direction of a plug module 200 and being spaced apart from each other. In the shown embodiment, a plurality of second elastic sheets 1321 is formed on the lower partition wall 132, the plurality of second elastic sheets 1321 being arranged in at least one row in the insertion direction of the plug module 200 and being spaced apart from each other. In the shown embodiment, each first elastic sheet 1311 is formed by punching and bending the upper partition wall 131 and each second elastic sheet 1321 is formed by punching and bending the lower partition wall 132.
The connector, as shown in FIG. 4, further comprises at least one light pipe 140. The light pipe 140 is disposed in a receiving space between the upper partition wall 131 and the lower partition wall 132.
The connector, as shown in FIG. 5, receives one or more plug modules 200 in the upper insertion port 101 and the lower insertion port 102. In an embodiment, the one or more plug modules 200 may be high power optical modules.
As shown in FIG. 5, the first rigid convex member 111 physically contacts the plug module 200 inserted into the upper insertion port 101. The second rigid convex member 121 physically contacts a plug module 200 inserted into the lower insertion port 102. The first rigid convex member 111 and/or the second rigid convex member 121 is in surface contact with the inserted plug module 200. Each of the first rigid convex member 111 and the second rigid convex member 121 has a contact surface adapted to be in surface contact with the inserted plug module 200. In the shown embodiment, the contact surface has a rectangular shape. In other embodiments, the contact surfaces of the first rigid convex member 111 and the second rigid convex member 121 may also be formed in circular, oval or other suitable shapes known to those with ordinary skill in the art.
As shown in FIG. 5, the first elastic sheet 1311 presses the plug module 200 inserted into the upper insertion port 101 against the first rigid convex member 111 such that the plug module 200 is in physical contact with the first rigid convex member 111. Similarly, the second elastic sheet 1321 presses the plug module 200 inserted into the lower insertion port 102 against the second rigid convex member 121 such that the plug module 200 is in physical contact with the second rigid convex member 121.
Because the first rigid convex member 111 and the second rigid convex member 121 physically contact the plug module 200 in the upper and lower insertion ports 101, 102, a gap between the plug module 200 and the housing 100 is eliminated, improving heat dissipation of the connector through the first rigid convex member 111 and second rigid convex member 121 of the housing 100. Further, it is not necessary to form a slit in the housing 100, improving the electromagnetic shielding of the housing 100.
In other embodiments, the connector may have a single insertion port 101, 102. In a further embodiment, the insertion ports 101, 102 are arranged in a single layer and a rigid convex member 111, 121 protruding toward an inner space of each insertion port 101, 102 and adapted to physically contact the plug module 200 inserted into the insertion port 101, 102 is formed on a top wall 110 of the insertion port 101, 102.