This application claims priority to Chinese Application Serial No. 201921769509.7, filed on Oct. 18, 2019, which is incorporated by reference in its entirety.
The present disclosure relates to a connector assembly, and particularly relates to a connector assembly having a heat sink.
Chinese invention patent application issuance publication No. CN101959389B (corresponding to U.S. Pat. Nos. 8,245,763B2, 8,459,336B2 and 8,578,605B2) discloses a heat dissipating device, in which heat dissipating fins and a heat pipe are assembled by a soldering manner, surfaces of the heat dissipating fins which are connected with the heat pipe are provided with a guiding trace line, the guiding trace line is used to guide a solder paste to be coated on the surfaces of the heat dissipating fins.
Chinese utility model patent application issuance publication No. CN206160785U discloses a heat sink, the heat sink includes a heat dissipating fin, a bottom plate and a heat pipe limited between the heat dissipating fin and the bottom plate. The bottom plate is formed with a heat pipe lower groove which receives the heat pipe, the heat dissipating fin is formed with a heat pipe upper groove which corresponds to the heat pipe lower groove, in the process of soldering, the heat pipe upper groove is not fully filled by a solder, and a gap is remained at the solder to accommodate a redundant part of the solder.
The technical features of the above two prior arts are only to solve a problem in soldering between the heat dissipating fin and the heat pipe, but are not to solve a problem in soldering between the heat dissipating fin and the bottom plate. The problem in soldering between the heat dissipating fin and the bottom plate in the prior art lies in overflowing of the solder at a rim of the bottom plate and the efficiency of the heat dissipation after soldering.
In order to have higher heat dissipating efficiency, existing heat dissipating fins are arranged on a whole top face of the bottom plate, in order to reduce overflowing of the solder, the whole top face of the bottom plate will not completely coated with a solder paste when the solder paste is coated, for example, an coating manner employs a grid node arrangement manner to coat a solder paste, but such a coating manner will result in that a soldering between the heat dissipating fins and the top face of the bottom plate is spot soldering, that is, many gaps without the solder paste are present between the heat dissipating fins and the top face of the bottom plate, and thus will affect heat dissipating efficiency. And such a coating manner of the solder paste in the grid node arrangement is still necessary to precisely control an amount of the solder paste, otherwise the problem in overflowing of the solder at the rim of the bottom plate still occurs.
Therefore, an object of the present disclosure is to provide a connector assembly which can improve at least one deficiency in prior art.
Accordingly, in some embodiments, a connector assembly of the present disclosure comprises a receptacle connector, a shielding shell and a heat sink. The shielding shell covers the receptacle connector. The heat sink is assembled to the shielding shell, the heat sink comprises a heat dissipating base plate and a heat dissipating fin soldered on the heat dissipating base plate, the heat dissipating base plate has a soldering region on which a solder is provided and a recessed channel which is provided between a rim of the heat dissipating base plate and an outer periphery of the soldering region, the solder is provided within the soldering region in a manner that a whole face of the soldering region is covered by the solder.
In some embodiments, the heat dissipating fin is formed by arranging and assembling a plurality of heat dissipating sheets which each are in the form of a sheet, each heat dissipating sheet has an edgewise bend which is soldered on the soldering region of the heat dissipating base plate.
In some embodiments, the heat dissipating base plate has a plurality of soldering regions which are spaced apart from each other, the recessed channel is a recessed channel which extends continuously along the rim of the heat dissipating base plate and surrounds the plurality of soldering regions.
In some embodiments, the heat sink further comprises a clip which is limited between the heat dissipating base plate and the heat dissipating fin which have been engaged with each other, the heat sink is assembled to the shielding shell with the clip.
In some embodiments, the heat dissipating fin is provided with a receiving groove to partially receive the clip.
In some embodiments, the shielding shell has a wall used to assemble the heat sink, the wall is provided with a window, the heat dissipating base plate of the heat sink is provided with a contacting plate which passes through the window.
In some embodiments, the heat dissipating base plate further has a pressing region which correspondingly positioned between the adjacent soldering regions, the pressing region corresponds to the receiving groove of the heat dissipating fin in position and is used to allow the clip to elastically press against, the recessed channel extends continuously along the rim of the heat dissipating base plate and surrounds the plurality of soldering regions and the pressing region.
In the present disclosure, the recessed channel which is provided around the outer periphery of the soldering region of the heat dissipating base plate collects and accommodates a part of the solder (for example tin paste) which is squeezed out of the soldering region to prevent the solder from overflowing the rim of the heat dissipating base plate, thus the solder can be provided to the soldering region in a manner that the whole face of the soldering region is covered by the solder and the solder can be connected between the heat dissipating fin and the heat dissipating base plate in a manner that a gap between the heat dissipating fin and the heat dissipating base plate in the soldering region is fully filled, so as to increase heat dissipating efficacy.
Other features and technical effects of the present disclosure will be apparent in an embodiment referring to the accompanying figures, in which:
Before the present disclosure is described in detail, it should be noted that like elements are denoted by the same reference numerals in the following description.
Referring to
The receptacle connector 1 is configured to be mechanically and electrically provided to a circuit board (not shown), the receptacle connector 1 has a housing 11 which is insulative and a plurality of terminals 12, the housing 11 has an insertion groove 111, the plurality of terminals 12 are provided in the insertion groove 111 and tail portions (not shown) of the plurality of terminals 12 are electrically and mechanically connected to the circuit board. The shielding shell 2 comprises a metal material, for example, and covers the receptacle connector 1, the shielding shell 2 extends along a front-rear direction D1 and has a top wall 21, a bottom wall 22 which faces and is spaced apart from the top wall 21 along an up-down direction D2, two side walls 23 which face and are spaced apart from each other along a left-right direction D3 and are respectively connected to two sides of the top wall 21 and the bottom wall 22, a rear wall 24 which is positioned at a rear end of the shielding shell 2 and connected to rear edges of the top wall 21 and the two side walls 23, and a plurality of insertion legs 25 which extend downwardly from the two side walls 23 and are adapted to be fixed on the circuit board and/or be connected to a ground trace. In addition, the shielding shell 2 further has a receiving cavity 26 which is defined by the top wall 21, the bottom wall 22, the two side walls 23 and the rear wall 24 together and positioned inside, an insertion opening 261 which is positioned at a front end of the shielding shell 2, in communication with the receiving cavity 26 and allows the mating module to insert, and a bottom opening 262 which is positioned behind the bottom wall 22 and in communication with the receiving cavity 26. Specifically, the receptacle connector 1 is provided to a rear segment of the receiving cavity 26 via the bottom opening 262 so as to be covered by the shielding shell 2, but the present disclosure is not limited thereto. After the mating module enters into the shielding shell 2 via the insertion opening 261, a mating portion (not shown) of the mating module can insert into the insertion groove 111 of the receptacle connector 1. Moreover, a plurality of grounding elements 27 are provided at the insertion opening 261 of the shielding shell 2, the grounding element 27 has a plurality of elastic fingers 271 which extend rearwardly from a position at the insertion opening 261 and are distributed to an outer side of the shielding shell 2 and an inner side of the shielding shell 2, the elastic fingers 271 positioned at the outer side of the shielding shell 2 are used to contact a case (not shown), the elastic fingers 271 positioned at the inner side of the shielding shell 2 are used to contact the mating module.
Referring to
A shown in
Returning to refer to
In the embodiment, the shielding shell 2 further has a window 263 which extends rearwardly along the front-rear direction D1, is provided to the top wall 21 and in communication with the receiving cavity 26, the heat dissipating base plate 31 of the heat sink 3 is provided with a contacting plate 314 at a bottom face of the heat dissipating base plate 31 to pass through the window 263, the contacting plate 314 is used to contact the mating module entering into the shielding shell 2 via the insertion opening 261 to cooperatively dissipate heat, although the contacting plate 314 is integrally formed to the heat dissipating base plate 31 in the embodiment, in other embodiments, the contacting plate 314 also may be a separate element and assembled and fixed to the heat dissipating base plate 31. In addition, the heat dissipating base plate 31 and the heat dissipating fin 32 of the heat sink 3 extend rearwardly beyond the rear wall 24 of the shielding shell 2, a part of the bottom face of the heat dissipating base plate 31 positioned behind the rear wall 24 is further provided with a plurality of heat dissipating sheet pieces 315 which protrude downwardly and extend along the front-rear direction D1. Such a configuration which extends beyond the rear wall 24 of the shielding shell 2 can increase a heat dissipating area of the heat dissipating base plate 31 and the heat dissipating fin 32, and cooperate with the plurality of heat dissipating sheet pieces 315 which are provided to a rear segment of the bottom face of the heat dissipating base plate 31, heat dissipating performance of the heat sink 3 with respect to the shielding shell 2 can be further increased.
In conclusion, in the present disclosure, the recessed channel 312 which is provided around the outer periphery of the soldering region 311 of the heat dissipating base plate 31 collects and accommodates a part of the solder 200 (for example tin paste) which is squeezed out of the soldering region 311 to prevent the solder 200 from overflowing the rim of the heat dissipating base plate 31, thus the solder 200 can be provided to the soldering region 311 in a manner that the whole face of the soldering region 311 is covered by the solder 200 and the solder 200 can be connected between the heat dissipating fin 32 and the heat dissipating base plate 31 in a manner that a gap between the heat dissipating fin 32 and the heat dissipating base plate 31 in the soldering region 311 is fully filled, so as to increase heat dissipating efficacy.
However, the above description is only for the embodiments of the present disclosure, and it is not intended to limit the implementing scope of the present disclosure, and the simple equivalent changes and modifications made according to the claims and the contents of the specification are still included in the scope of the present disclosure.
Number | Date | Country | Kind |
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201921769509.7 | Oct 2019 | CN | national |